These NIST videos have been fascinating. There’s nothing better than hearing straight from the experts who also happen to be engaging and interesting people!
This is the first time I've seen Derek is completely quiet almost throughout the entire video and not having to ask many questions or prompt the speaker and explain it to the viewers because Oh My God! The way Matt explains this is almost like listening to a cinematic story teller taking you though some of the most mind blowing scenarios and you are actually visualizing in your head the vivid details he's explaining! He's like the OG CSI!
i can't help but think the guy is a liberal wimp because of his prey eyes, his sleeves being short like that and him not wearing anything under his sweater
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Absolutely agree. Its mesmerising how well done this science is. I know this is generalizing but i kinda feel like this is how science should function.
This guy speaks better than 90% + of RUclips site hosts, including the one here. Example, he doesn't throw in the word "like" uselessly as this host, and most others, do.
Matt was 100% right about most people not sitting down and read a scientific journal. Your channel is proof enough for most (I feel like). I know I have never been like "Hmm. How do I measure the tiniest forces in the universe?"... but I still watched your entire video. And like he said, the problem isn't the science itself, it the communication. Being able to actually SEE the effects/proof of what is being talked about is a much easier way for media to convey their information.
You with Kurzgesagt are in my opinion the overall best scientific educationnal channels ever, and I feel so priviliged to be able to watch those videos for free.
kurzgesagt is not very objective, they say what their sponsors want them to say, and it so happens that most of their videos are sponsored by Gates. some ppl on yt made videos about this
@@thejericho I mean yeah, the one the man made viruses was pretty shady, I certainly did not like that one. But there are some videos that are not deserving the hate they get, and even the most controversial before this one were quite well argumented and were were overall well put together.
There’s an art to distilling a technical subject into just the right amount of detail for a layman with extra detail sprinkled in at important parts for those with a deeper understanding. It’s a balancing act between providing enough detail without overwhelming those not familiar with the topic. Matt absolutely nails this and it’s always cool to see professionals in other technical fields using this strategy as it’s something I use frequently in IT!
I love now knowing the intricacies of the dog nose. it’s always been known (to me) that dogs have amazing smell, but to see why gives me a whole new appreciation 🐕.
Its amazing how much elegant designs there are in nature, from the Japanese train engineers who modeled train fronts after bird noses to reduce sonic booms and noise, to this, its just gives you hours of stuff to think about.
Some years back I took a tour of this very lab at NIST. I saw Matt Staymates and his research division lead Greg Gillan. They were working with 3D printed dog nose for explosive detection back then and the way Matt explained this to us was cool. Fascinating.
That dude absolutely loves what he does.. and takes huge pride in his work. Not to mention. He is an awesome presenter/teacher.. hope to see him more on the channel
Myyyaahhh but the costs involved and manpower / hours needed to develop AI to _replace_ the manpower in getting all of that organised is (still) pretty unfeasible. Then there's admin, 'some incompetency', conflicts of interest, funding, etc. etc. Not to even mention any counter-movements or all that work getting cut short for whatever reason before it gets a chance to properly be launched Whenever you think about something scary and all-encompassing like that, also think about how "clunky" most things are we do on a general basis... and then try and marry the two concepts x)
@@jasondashney that's pretty true! Then let's keep paying attention and using the tools at our disposal to advocate for what we believe in, and fight what we don't...!
yeah he almost seems trained, like his job is to convince people of his science more than actually doin science, i wonder why anyone like that would be employed by that company and not a larger group that would fund a talking head, idk weird huh lol lmao xd hahahaha he's very good
Towards surveilance society we go, soon your farts will be analyzed in real time, *pling* you will get message that your health insurance has been terminated.
@@Shrooblord do know that ISO stands for International Organization for Standardization because La France. but that must be the most expensive party there is when every item must be a ISO item.
This guy made something so complex, seem so easily understood. Goes to show teaching methods and the teacher correspond so much with knowledge intake - loved it
i started to grow carolina reaper last year and i am very familiar with these dust movements by now, because when you dry chili and grind it to a powder, you always have these particles that stay in the air. and you dont want to breathe in this stuff, believe me xD i didnt have a fancy setup like this, but i used a bright light to illuminate the larger particles, so i could figure out how to move in a way to not accidentally pull these particles towards me ^^
wouldn't something like a fan help with this issue? preferable outside/towards the outside so that those particles will get pushed away? or the opposite something like a vaccum cleaner to suck in those particles?
I'm a chef, and a few weeks ago the other chef threw a handful of blackened seasoning on a piece of fish, literally seconds after one of the exhaust fan belts came off quietly. I walked right into an invisible cloud of it. In my eyes and up my nose. 🤬
@@in5aneguy597 that was my first guess as well, but fans create too much turbulence and then the particles disperse evenly, making it hard to breathe :D i settled on gently waving the air away from me after opening the mixer unit, while having an open window nearby. of course, a professional ventilation system that just sucks in the air immediately would be best, but that is not available for me ^^
I “discovered” the laser light sheet long ago. I was sitting in a bar in my early 20’s. Smoking a cigarette. It was daytime, and the sun was shining. The bar had blinds on the windows, and sunbeams were shining through, creating “sheets” of light. My cigarette smoke made amazing swirling patterns in the light. Only took me nearly 20 years to become fully obsessed with fluid dynamics and visualizing the processes.
@Aluzky I can infer the reason is that wheat flour, a fine dust, could get on everything as they show here with talcum powder, thus getting gluten into celiacs intestines. Celiacs have a genuine diagnosed medical condition that even the tiniest amount of gluten can cause huge inflammation. I suppose you could not see that connection. Alas.
“The FBI gathers evidence. Once evidence is gathered, it is turned over to the Department of Justice. The Department of Justice then decides whether it has enough evidence to present to a federal grand jury. In the case of the 1998 United States Embassies being bombed, bin Laden has been formally indicted and charged by a grand jury. He has not been formally indicted and charged in connection with 9/11 because the FBI has no hard evidence connecting bin Laden to 9/11.”
Guys like Matt are what is necessary to get folks excited about science again. He does not talk down or patronize like many science communicators. He is not afraid to be seen to get excited about what he does.
Fascinating video! But a point of clarity, (medic here, for reference) his comment about Fentanyl isn't accurate; it takes a significant amount of inhalation exposure for fentanyl to be absorbed intranasally - although it looks like a lot in the video, it's still highly unlikely to be an exposure risk.
espescially to the soryt of person who would take that job, someone likely to have a very high tolerance from repeated exposure prior to taking the job (ie a veteran user)
You can absorb it into mouth tissues as well as into your lungs for direct exposure though. Most people breathe at least partially through their mouths, not solely through their nose.
@@rdizzy1 And that somehow makes up for the giant dose neccesary to ovedose in the first place? The idea that one could overdose through exposure like this is simply false, no two ways about it. Sad to see Veratasium perpetuate such copaganda.
@@rdizzy1 the surface area of the lungs is extremely large and made specifically for transfer into the blood stream, i'm no expert but i would think any absorption through mouth tissues would be negligible in comparison
I've seen this imaging technique explained several times and it still looks like a magic spell. How does someone look at light and think to chop it with a razer blade? Incredible. Loved the video!
It's an interferometer. The razor blade edge causes diffraction. It's not used to block light, it's used to measure phase differences caused by small changes in the index of refraction in the sensing region.
Hey Derek, how about some Veritasium about the measurable harms perpetrated by prohibitionist regimes? imagine if all the resources and mental efforts that go into prosecuting people for self-medicating with illicit drugs were instead directed toward improving public health and early childhood education.
@@imveryangryitsnotbutter Not if they are stuck inside of the house. It’s also probably easier for them to use their strong sense of smell. I would imagine it’s similar to how we would try to find the source of a smell in our homes. Like if someone was cooking, we could tell by smelling it through the air.
My theory has always been that they have a very good inner clock. My dog gets dinner at 6pm and he starts nagging me between 5:30 and 6, irrelevant of the sun since for example sunset is at 4pm now.
Most animals have a very good body clock (my cat will pester me for food at almost the exact same time every day with about 10 minutes difference being the furthest from that time) (which is 4:30)
This was so cool and the lab presenter did a phenomenally cool job with one tiny caveat - the whole "minor fentanyl exposure is dangerous" thing is a myth. As an experienced EMT with a biochemistry degree, this is simply not true and a weird urban legend perpetuated by police departments. Stilll, this video was awesome. All these examples are so much cooler than the stuff I learned in physics classes.
I've always found it strange that all these people die with fentanyl in their system and everyone insists it was tainted cocaine with no other option. I don't know what that could mean, but it's something I observed and thought was weird.
I believe he was more referencing that if the person working in the production of fentanyl does not have a mask on, it would be lethal due to the high inhalation exposure throughout period of time. Especially in the video where the person was handling large amounts of particulate matter, not what an average addict would have at their disposal.
Umm, 2 milligrams of pure fentanyl is considered more or less lethal. According to Google 2 milligrams = 7.055 × 10⁻⁵ ounce That is a small amount. I doubt you have too much experience dealing with addicts handling pure fentanyl.
Umm, 2 milligrams of pure fentanyl is considered more or less lethal. According to Google 2 milligrams = 7.055 × 10⁻⁵ ounce That is a small amount. I doubt you have too much experience dealing with addicts handling pure fentanyl. To visualize that, it's 4 grains of table salt. And that kills people. I don't think getting 2 grains worth in or on you, would do you any favors. How much did that degree cost? 😄
This video was absolutely incredible, I got kinda sad when it ended. You can really feel Matt's enthusiasm and how much he loves doing that stuff. Amazing content, Derek
Biomimetic Design is one of my all-time favourite things, because you're taking systems that evolution has refined at various scales and then implementing them into technology to vastly improve its effectiveness in ways that we'd never be able to do with just normal iterative testing or conceptualization.
Evolution does not strife for perfectness. It strifes for adequateness. When some feature is good enough to overcome the selection pressure, there is no more pressure to evolve and the further development will be stagnated. In school terms, more often than not this results in minimum grades required to pass the class, but far from actually learning the subject and becoming good at it. While we find very good and novel solutions to some problems from nature, it's not as much that the nature does things good as it is that nature goes around solving these problems very differently than humans are used to think, and due to sheer amount of different solutions in nature there are bound to be some good ones. This is the case of infinite monkeys with typewriters. When we find solutions from nature, it's more like combing through the text those monkeys write until we find something good.
This was the BEST video by FAR! Absolutely amazing job, it's been years since I didn't skip through a video or watch at x2 speed on RUclips in general, but I was so captivated the whole time through that I couldn't stop watching in absolute awe. So here is a comment for the algorithm, we gotta spread this.
This was one of the best videos you came with Derek! Love that guy, it feels like he's so passionate about what he is doing. And his explanations were so smooth! Love it 💜
This guy is a great talker and teacher, I’ve learned so much on this video and was entertained the entire time, glad to see the technology used behind the scenes get a spotlight and be appreciated by the public
Truly good video! Impressive choice to let the obviously talented presentation skills of your guest stand front and center. I don't think other channels would have made such a good decision, in fear that the viewers are expecting "derek." Great editing and presentation. Thank you Derek for all the different styles you do!
Cartels watching this: “Man, now we gotta buy fume hoods & those closed off boxes they use when dealing with anthrax or small pox.” Edit: ok all I’m saying is this is just a weapons race, which can go on forever, and considering it’s drugs, it will go on forever. Point is, if your methods get better, so will theirs. Simple.
They surely already do it, along others methods. But the dog can detect the small traces that you leave from your shoes or hand. If you take a box on a drug lab, then walk inside the truck to hide it, you will leave the smell. You can see it in a scene of breaking bad. They shoot a small bag of drug next to a truck to make the dog mark it. The traces are enought.
You've talked about how you change video thumbnails and titles before and in this case it really worked on me. I've seen the thumbnail and title about the artificial dog nose and while I'm always interested in your content this didn't really got me to watch it, because I was expecting some kind of information about how good dog noses are and I felt like I likely already know what you were going to say, so I didn't click it. The title about seeing invisible air flow and the laserplane image got me though, because that just seemed way more interesting and more likely to be new information to me. Good choice to use the laser plane image by the way, since Schlieren images may not have gotten the click from me, because I feel like I've watched a lot of videos about this technique already. It's interesting to see the psychology of changing thumbnails & titles work on myself. Wish I could know how the different thumbail & titles played out for you on this video and if I'm a mainstream or niche consumer in that regard.
My father was a NIST physicist for most of his career, so I grew up running around the halls and being invited into labs. It’s so cool to see all this stuff, I’ve been sending each one to him, and he’s been loving it.
During the laser sheet part, I really liked seeing patterns disappear and reappear. It's like a 2D observer would see this 3D thing appear in and out of existence. It helped me slightly imagine if a 4D object would come into our 3D world
Expanding on the dark edges showing a louder sound; you are seeing density. Given air is homogenous, the stronger the shockwave, the more air it can smash into a small space. With a good control sample and good resolution, you could create a direct pixel gray-scale to decibel to psi conversion at w/e resolution your setup can record at. Pretty amazing when you consider the setup in the video had enough control to be replicated with ease, really gets the imagination going knowing this kind of stuff is being used and shared across the internet, another amazing find good sir. On a side note, I love the beautiful patterns inside the dark ring. Strikes me as strange that a 2d Slice of this 3d wave looks a lot like a ripple you'd make in the water.
Okay I'm going to be real, these kind of videos push me to get up from my bed and continue my studies because they show how much we can achieve as humans. Thank you to Veritasium as always!
Derek’s work is so well done, even when something doesn’t seem that interesting (going by the title), I always end up learning a lot, even if I think I know the topic. Thanks for posting such high quality content Derek!
Hey, can you make a video explaining how astronomers calculate the movement of a celestial body. Especially the orbits, velocity, the position at certain time. I am very interested in this. 😄
Question for anyone: during my first ever total solar eclipse, I saw waves appear as shadows on the ground just prior to totality. Am I assuming correctly that because the sun was a smaller, more focused point of light that I was seeing a shadowgram of air current that is always there but not visible because of the sun's normally larger light source?
This is only "one dimensional" detection, could you add dimensions by adding more lasers in different wavelengths in paralel laser to get some more 3d data?
You could sweep that plane across the third axis by spinning the emitter and reflecting it off a parabolic mirror. Record a video of it and each frame is like a slice from an MRI.
Really impressive… and simultaneously philosophically terrifying. Does… this chill anyone else when considering how this could be used by branches in the government (in the wrong hands)..?
I mean. Dude had clear law enforcement bias. Those people are actual monsters so like your instinct isn't wrong and you're definitely not the only one.
It's always appreciated when science is said and then spelled out for the layman. Matt is really good at that; compliments for letting him do his thing in your edits. Amazing video! Here's to hoping you can do more right up this avenue
This brilliant video will hopefully endure for many years, It is a milestone in particle detection methods. Derek and Matt complement each other so well, two geniuses in synch. I'd like to see some research on multiple people in closed rooms and open environments, in cold and very warm (and wet) conditions talking, shouting, breathing & coughing. Along with the study the various types of masks in use from first use to being a few days old. Really find out if masks work to protect one another or just provide a method of compliance confirmation
It's amazing how it looks so much like the atmospheres in gas giants like Jupiter. For the same reasons, no doubt. It's just interesting to see it behave the same way in a much smaller scale.
This was easily one of the most interesting videos I’ve seen in about 15 years of watching RUclips. This struck directly at the types of things I think about all the time - micro fluid dynamics - super super interesting. Thanks! Lucky enough to have visited the NIST lab in DC (for energy related topics)
@@bkiii8397 Yes. Don't get me wrong, it's really cool to see the cutting edge science and engineering done at these institutions. But, there's a certain absurdity in the juxtoposition between the focus of Derek's last few videos and how I'm used to seeing these agencies discussed. Has he explained why he's doing this highlight series? Is he sponsored in some way or just making use of his access for content? A little weird if he hasn't addressed it.
This video is amazing. It's not only very specially informative, but the enthusiasm behind science is incredibly infectious. So, thank you to you both. Rich, you are a great educator as well as you Derek.
I was watching this on my TV and had to go on my phone to type this. But apart from this being an awesome video, that dude has amazing presentation skills. His enthusiasm and knowledge just captivate me and he hasn’t lost my attention for a second. Great find Derek!
14:08 Please edit this clip. This is reinforcing misinformation about fentanyl which is already high, especially among law enforcement. There have been several cases where cops faint/have a medical episode or deny medical attention to individuals for fear of exposure rather than from any affect of the drug. to quote-- It would take prolonged exposure to a large amount of airborne fentanyl to cause an overdose, according to the medical toxicologists. Their report references safety standards for industrial workers who manufacture fentanyl. “At the highest airborne concentration encountered by workers, an unprotected individual would require nearly 200 minutes of exposure to reach a dose of 100 mcg of fentanyl,” the report states. (100 mcg, or micrograms, is enough to have a therapeutic effect but not enough to cause an overdose.)
Most online sources report that 2mg is the minimum required to be lethal, but that is ingestion. This is 200x more than the amount _in an industrial facility that produces fentanyl_ that you would need 200minutes of exposure to for inhalation to be a concern. Let's also not forget that fentanyl is potent, but it's still an approved drug used for medical treatments and therefore the LD50 is going to be difficult to attain even when you're taking a prescribed dose rather than just being in the same room as it. TL;DR Risks of toxic fentanyl overdose from inhalation are _incredibly_ unlikely, even in a prolonged, unprotected setting with a much higher than average amount of fentanyl present. There are many online articles supporting this as well as articles on contact exposure.
Derek and Veritasium are back again with their usual 10/10 content after the disaster that was the last video about dropping metal projectile from helicopter (Project Thor).
Derek, you’ll probably never see this, however, I want to say I’ve been watching Veritasium since the very early days. I love physics & to better understand how the world around me works & get a better grasp on how it shapes our world. It’s the undisputed ruler of all laws, rules, & governance of the physical universe. Veritasium delivers great education consistently…even when it turns out your wrong. Getting things wrong is often underrated in its importance towards how we learn. Anyway, what I’m trying to say is - I found this video very interesting & one of your all time top 10, maybe top 5 best. And, it’s really just a few old & simple principles brought together to produce some amazing new research. Loved it. Please consider doing more w/ schlieren imaging or fluid dynamics, it’s so satisfying.
Schlieren and shadowgraph imaging are so much fun in acoustics. Another lab in my faculty has one of those dummies that can breathe, cough, sneeze and even fart - it's creepy as hell, it's like a corpse becoming animate. I desperately want to use it to play pranks on people ... EDIT: It's always pretty startling to hear people working for law enforcement reveal just how little they know about illegal drugs, particularly diverted pharmaceuticals like fentanyl; people aren't refining that in clandestine basement labs in suburbia (though, people could still be working with a large quantities, cutting and/or portioning). But the "generalisation" of drug manufacture is a weird thing that US law enforcement agencies do; that methamphetamine can be made in a clandestine lab in suburbia, so fentanyl must be also. Oh, well, best of luck with "the War on Drugs" and all that. How's that been workin' out over the past four decades? Good?
They're too stupid and evil to listen or think...because not thinking enables them to steal unlimited amounts of money, and attack their enemies with police power.
I hate the framing in this video. There is so much fear mongering and cop bootlicking going on. They could have chosen so many other examples for talking about tracing particles, from work protecting factory workers from exposure to dangerous substances to protecting children playing on polluted beaches. Of all the examples they chose, they fear mongered about illicit fentanyl production when the real issue is overprescription in the legal market and a corporate push for profit at the cost of the health of patients. The science in it is amazing, but the framing is absolute garbage. I really thought the Derrick would be above selling this kind of propaganda. Edit: typo fixing
Very articulate and present in providing explaination about how all this works. Guy could make a Art channel with just the laser field and particulate flow.
Again, THESE are the people that deserve accolades and praise. But instead, we celebrate some idiot who decided they are now nonbinary, and/or created a stupid viral tiktok of nothingness. We don't need more five minutes of fame fashion brands, cosmetic lines, actors, singers, poets, or ballers; we NEED more scientist and people with useful intelligence whose contributions are everlasting. Praise to the genetically gifted, and ACTUALLY smart people of the world that make it is what it is, today.
Matt Staymates' presentation skills are truly amaizing. explanations are crystal clear and not a single ummm in the entire video.
5:20 ummm
@@georg240p not matt
19:33
There's one at 10:20 :D
*Ok_Dont_Read_My_Namess* ....
This guy was amazing, he explains things so damn well and there's no need for a question
They exhale out of the small "crescents" on the sides of their nose. A different route from inhaling.
Horses do the same thing.
There are smart people, & then there's this guy
He's a good boy! Such a good boy!!!!
You would need to say that the people he interviews are very good at explaining things to him and he is just really good at relaying that information
A question: do we really need that turbulent outflow that goes out through the same holes but slightly tilted backwards?
You can tell this guy absolutely loves what he does. It's so awesome.
Yeah, but the application of his work is straight for use by law enforcement 👎 🥾
@@gutika113 so its bad to solve crimes?
@@gutika113 Literally used to stop terrorism and half the video is talking about detecting bombs however you see this as a negative? Kinda sus bro
He said laser light at 7:37, 8:01, and 8:27. laser is an acronym for light amplification by stimulated emission of radiation.
@@KevinOrIsItlaser is also a noun, what is your point
These NIST videos have been fascinating. There’s nothing better than hearing straight from the experts who also happen to be engaging and interesting people!
This is the first time I've seen Derek is completely quiet almost throughout the entire video and not having to ask many questions or prompt the speaker and explain it to the viewers because Oh My God! The way Matt explains this is almost like listening to a cinematic story teller taking you though some of the most mind blowing scenarios and you are actually visualizing in your head the vivid details he's explaining! He's like the OG CSI!
Yeah, he's a salesman for evil, he has to be good at his job.
@@techsoul5590 most people have to be good at their jobs, regardless of whether you think its for evil or goof
Guy was really not that smart or good at speaking i dont get why everyones jerking it to him
@@sawyer3818 Incompetence is far more common than you give credit for. Sales/PR isn't the place for incompetence or morals though.
A TV producer would be mad at him for wasting 6 seasons of crime science on a RUclips video.
Clear, concise and fascinating. This content blew me away.
but it blew you how far away?? like, with how many particles?? can you show us with your schlieren setup?? hahaha
Night and day vs that helicopter drop video
i can't help but think the guy is a liberal wimp because of his prey eyes, his sleeves being short like that and him not wearing anything under his sweater
Absolutely agree. Its mesmerising how well done this science is. I know this is generalizing but i kinda feel like this is how science should function.
This guy speaks better than 90% + of RUclips site hosts, including the one here. Example, he doesn't throw in the word "like" uselessly as this host, and most others, do.
Matt was 100% right about most people not sitting down and read a scientific journal. Your channel is proof enough for most (I feel like). I know I have never been like "Hmm. How do I measure the tiniest forces in the universe?"... but I still watched your entire video. And like he said, the problem isn't the science itself, it the communication. Being able to actually SEE the effects/proof of what is being talked about is a much easier way for media to convey their information.
You with Kurzgesagt are in my opinion the overall best scientific educationnal channels ever, and I feel so priviliged to be able to watch those videos for free.
Kurzgesgat is billionaire propaganda
kurzgesagt is not very objective, they say what their sponsors want them to say, and it so happens that most of their videos are sponsored by Gates. some ppl on yt made videos about this
So you like propaganda.
@@thejericho I mean yeah, the one the man made viruses was pretty shady, I certainly did not like that one. But there are some videos that are not deserving the hate they get, and even the most controversial before this one were quite well argumented and were were overall well put together.
There’s an art to distilling a technical subject into just the right amount of detail for a layman with extra detail sprinkled in at important parts for those with a deeper understanding. It’s a balancing act between providing enough detail without overwhelming those not familiar with the topic. Matt absolutely nails this and it’s always cool to see professionals in other technical fields using this strategy as it’s something I use frequently in IT!
I love now knowing the intricacies of the dog nose. it’s always been known (to me) that dogs have amazing smell, but to see why gives me a whole new appreciation 🐕.
there was no why
They have one reason why, I suppose. But they didn’t talk about the actual olfaction itself.
' (to me) '?
like that isn't common knowledge?
@@chucknorris3752 because this is about airflow and such. not neuro science
@@forget2bhuman993 because you said so, right? Or..? Director?
Its amazing how much elegant designs there are in nature, from the Japanese train engineers who modeled train fronts after bird noses to reduce sonic booms and noise, to this, its just gives you hours of stuff to think about.
You see a lot of "AI generated" solutions to various problems these days. Nature is just that learning and adaptation process at a much larger scale
@@shellderp Of course, every house is constructed by someone, but the one who constructed all things is God.
@@redline589 bro go away
The prime mover is a flawed ideology
@@redline589 You don't belong here
I have the attention span of a chihuahua and was focused the whole video. Awesome work!!
Um.. what's the attention span of these little dogs, then?
@@tim40gabby25 definitely not long enough to work in this lab!
That says so much about the way that guy communicates. It had my attention throughout
Wow what a comment
Good boy!
Some years back I took a tour of this very lab at NIST. I saw Matt Staymates and his research division lead Greg Gillan. They were working with 3D printed dog nose for explosive detection back then and the way Matt explained this to us was cool. Fascinating.
*Ok_Dont_Read_My_Namess* ....
They're trying to take jobs away from good boys!
Interesting! How did you get that opportunity? Is it something they do often, or was it more of a special access type of thing?
@@GriffinZambia
My brother, the OP's story is far more interesting than your half-assed name.
That laser screen is such a good way to make cool live wallpapers
okay jackson
@@hypno743 okay boomer
Dude keep those thoughts to your SELF!!
13:38 yes! Dude thought the same.
Till you go blind XD, there's a reason they had laser googles on
That dude absolutely loves what he does.. and takes huge pride in his work. Not to mention. He is an awesome presenter/teacher.. hope to see him more on the channel
Very fascinating, but also incredibly scary to think about how this could be used to track pretty much anything anyone is doing.
Myyyaahhh but the costs involved and manpower / hours needed to develop AI to _replace_ the manpower in getting all of that organised is (still) pretty unfeasible. Then there's admin, 'some incompetency', conflicts of interest, funding, etc. etc.
Not to even mention any counter-movements or all that work getting cut short for whatever reason before it gets a chance to properly be launched
Whenever you think about something scary and all-encompassing like that, also think about how "clunky" most things are we do on a general basis... and then try and marry the two concepts x)
@@Shrooblord A smartphone was very very clunky in 2000 but by 2012 they were ubiquitous and essential for modern life. A dozen years.
@@jasondashney that's pretty true! Then let's keep paying attention and using the tools at our disposal to advocate for what we believe in, and fight what we don't...!
Notice how quiet Derek Muller was? Rich Press is amazing at his field.
@@Caseyneistat3010shut up
That's not Rich Press, it is Matthew Staymates
Wow the passion in this guy is next level. He REALLY loves what he does for a living.
This guy is such a natural presenter!
Which is odd because the video makes it look like he's the only one that works there lol
@@MartKencuda My dude has just been dying to show someone his lab!
@@MartKencuda Don't worry., he wrote "a code" to replace them all.
yeah he almost seems trained, like his job is to convince people of his science more than actually doin science, i wonder why anyone like that would be employed by that company and not a larger group that would fund a talking head, idk weird huh lol lmao xd hahahaha
he's very good
@@volthunter3 people that are passionate about what they do tend to behave like this.
The work done at NIST and ISO is so underrated. I feel like there should be like a national holiday to celebrate the life-saving work these guys do.
Now that is a really cool idea. International Standards Day x')
Towards surveilance society we go, soon your farts will be analyzed in real time, *pling* you will get message that your health insurance has been terminated.
@@Shrooblord do know that ISO stands for International Organization for Standardization because La France.
but that must be the most expensive party there is when every item must be a ISO item.
Looks like ISO was established on February 23, 1947. That's as good a day as any for a celebration.
This guy made something so complex, seem so easily understood. Goes to show teaching methods and the teacher correspond so much with knowledge intake - loved it
i started to grow carolina reaper last year and i am very familiar with these dust movements by now, because when you dry chili and grind it to a powder, you always have these particles that stay in the air. and you dont want to breathe in this stuff, believe me xD i didnt have a fancy setup like this, but i used a bright light to illuminate the larger particles, so i could figure out how to move in a way to not accidentally pull these particles towards me ^^
wouldn't something like a fan help with this issue? preferable outside/towards the outside so that those particles will get pushed away?
or the opposite something like a vaccum cleaner to suck in those particles?
@@in5aneguy597 Or make them wet as you cut. Water kills dust movement anyway.
I'm a chef, and a few weeks ago the other chef threw a handful of blackened seasoning on a piece of fish, literally seconds after one of the exhaust fan belts came off quietly.
I walked right into an invisible cloud of it. In my eyes and up my nose. 🤬
Are you actually eating them or is it just for the thrill?
@@in5aneguy597 that was my first guess as well, but fans create too much turbulence and then the particles disperse evenly, making it hard to breathe :D
i settled on gently waving the air away from me after opening the mixer unit, while having an open window nearby. of course, a professional ventilation system that just sucks in the air immediately would be best, but that is not available for me ^^
I “discovered” the laser light sheet long ago. I was sitting in a bar in my early 20’s. Smoking a cigarette. It was daytime, and the sun was shining. The bar had blinds on the windows, and sunbeams were shining through, creating “sheets” of light. My cigarette smoke made amazing swirling patterns in the light. Only took me nearly 20 years to become fully obsessed with fluid dynamics and visualizing the processes.
That dust spread is why cross contamination is so challenging for celiacs
@Aluzky I would suspect the answer is wheat flour 🤦♀
@Aluzky I can infer the reason is that wheat flour, a fine dust, could get on everything as they show here with talcum powder, thus getting gluten into celiacs intestines. Celiacs have a genuine diagnosed medical condition that even the tiniest amount of gluten can cause huge inflammation.
I suppose you could not see that connection. Alas.
Finally, the "Elevator Fart Detector" invented.
...experiments at the holiday party
Hahaha
This is by far my favorite stuff on this channel. Thank you for breaking it down so thoroughly and sharing it.
“The FBI gathers evidence. Once evidence is gathered, it is turned over to the Department of Justice. The Department of Justice then decides whether it has enough evidence to present to a federal grand jury. In the case of the 1998 United States Embassies being bombed, bin Laden has been formally indicted and charged by a grand jury. He has not been formally indicted and charged in connection with 9/11 because the FBI has no hard evidence connecting bin Laden to 9/11.”
Guys like Matt are what is necessary to get folks excited about science again. He does not talk down or patronize like many science communicators. He is not afraid to be seen to get excited about what he does.
Fascinating video!
But a point of clarity, (medic here, for reference) his comment about Fentanyl isn't accurate; it takes a significant amount of inhalation exposure for fentanyl to be absorbed intranasally - although it looks like a lot in the video, it's still highly unlikely to be an exposure risk.
espescially to the soryt of person who would take that job, someone likely to have a very high tolerance from repeated exposure prior to taking the job (ie a veteran user)
yes, that line was pure BS and yet just taken at face value without question, a common talking point in the bogus war on drugs police propaganda
You can absorb it into mouth tissues as well as into your lungs for direct exposure though. Most people breathe at least partially through their mouths, not solely through their nose.
@@rdizzy1 And that somehow makes up for the giant dose neccesary to ovedose in the first place? The idea that one could overdose through exposure like this is simply false, no two ways about it. Sad to see Veratasium perpetuate such copaganda.
@@rdizzy1 the surface area of the lungs is extremely large and made specifically for transfer into the blood stream, i'm no expert but i would think any absorption through mouth tissues would be negligible in comparison
I've seen this imaging technique explained several times and it still looks like a magic spell. How does someone look at light and think to chop it with a razer blade? Incredible. Loved the video!
What he's doing is polarizing the light, which is why you can "see" the changes in density next to the mirror
Yeah, the razor blade is a remarkable addition. It's a very low tech solution.
Sometimes you just gotta cutta beam. 😄
It's an interferometer. The razor blade edge causes diffraction. It's not used to block light, it's used to measure phase differences caused by small changes in the index of refraction in the sensing region.
@@JP-lz3vk Hate to say it but no, this is not due to polarization effects. Schlieren images are effectively phase contrast.
I like how simple yet complicated the set up is like anyone can build it but know where the exact points to get the best image definitely a challenge.
because we live in a world of vibrations! :-)
linus tech tips made a schieleren imaging thingy to mesure graphics cards airflow wich is preatty cool tbh.
@@lukasausen I just seen that crazy
Hey Derek, how about some Veritasium about the measurable harms perpetrated by prohibitionist regimes? imagine if all the resources and mental efforts that go into prosecuting people for self-medicating with illicit drugs were instead directed toward improving public health and early childhood education.
This was the area of my research ~10 years ago. I was very pleased to see how this was presented and explained in this video. Well done!
That's why dogs can get a sense of when you're supposed to be home from work based on how much of your scent is left in the house.
Wouldn't it be easier to just notice where the sun is in the sky?
@@imveryangryitsnotbutter Not if they are stuck inside of the house.
It’s also probably easier for them to use their strong sense of smell. I would imagine it’s similar to how we would try to find the source of a smell in our homes. Like if someone was cooking, we could tell by smelling it through the air.
@@imveryangryitsnotbutternot to mention the sun changes position in the sky at times throughout the year
My theory has always been that they have a very good inner clock. My dog gets dinner at 6pm and he starts nagging me between 5:30 and 6, irrelevant of the sun since for example sunset is at 4pm now.
Most animals have a very good body clock (my cat will pester me for food at almost the exact same time every day with about 10 minutes difference being the furthest from that time) (which is 4:30)
This was so cool and the lab presenter did a phenomenally cool job with one tiny caveat - the whole "minor fentanyl exposure is dangerous" thing is a myth. As an experienced EMT with a biochemistry degree, this is simply not true and a weird urban legend perpetuated by police departments.
Stilll, this video was awesome. All these examples are so much cooler than the stuff I learned in physics classes.
I've always found it strange that all these people die with fentanyl in their system and everyone insists it was tainted cocaine with no other option. I don't know what that could mean, but it's something I observed and thought was weird.
+
I believe he was more referencing that if the person working in the production of fentanyl does not have a mask on, it would be lethal due to the high inhalation exposure throughout period of time. Especially in the video where the person was handling large amounts of particulate matter, not what an average addict would have at their disposal.
Umm, 2 milligrams of pure fentanyl is considered more or less lethal.
According to Google
2 milligrams = 7.055 × 10⁻⁵ ounce
That is a small amount.
I doubt you have too much experience dealing with addicts handling pure fentanyl.
Umm, 2 milligrams of pure fentanyl is considered more or less lethal.
According to Google
2 milligrams = 7.055 × 10⁻⁵ ounce
That is a small amount.
I doubt you have too much experience dealing with addicts handling pure fentanyl.
To visualize that, it's 4 grains of table salt. And that kills people. I don't think getting 2 grains worth in or on you, would do you any favors.
How much did that degree cost? 😄
This video was absolutely incredible, I got kinda sad when it ended. You can really feel Matt's enthusiasm and how much he loves doing that stuff. Amazing content, Derek
Finally I understood how the Schlieren setup works. Thank you Derek!
Biomimetic Design is one of my all-time favourite things, because you're taking systems that evolution has refined at various scales and then implementing them into technology to vastly improve its effectiveness in ways that we'd never be able to do with just normal iterative testing or conceptualization.
*Ok_Dont_Read_My_Namess* ....
Evolution does not strife for perfectness. It strifes for adequateness. When some feature is good enough to overcome the selection pressure, there is no more pressure to evolve and the further development will be stagnated. In school terms, more often than not this results in minimum grades required to pass the class, but far from actually learning the subject and becoming good at it.
While we find very good and novel solutions to some problems from nature, it's not as much that the nature does things good as it is that nature goes around solving these problems very differently than humans are used to think, and due to sheer amount of different solutions in nature there are bound to be some good ones. This is the case of infinite monkeys with typewriters. When we find solutions from nature, it's more like combing through the text those monkeys write until we find something good.
@@GriffinZambia stfu who asked
I like how this guy is definitely passionate about his work and is great at explaining it.
Finally a veritasium video where I understood 90% of the stuff instead of not understanding 90% 😅
This was the BEST video by FAR! Absolutely amazing job, it's been years since I didn't skip through a video or watch at x2 speed on RUclips in general, but I was so captivated the whole time through that I couldn't stop watching in absolute awe. So here is a comment for the algorithm, we gotta spread this.
This was one of the best videos you came with Derek! Love that guy, it feels like he's so passionate about what he is doing. And his explanations were so smooth! Love it 💜
This guy is a great talker and teacher, I’ve learned so much on this video and was entertained the entire time, glad to see the technology used behind the scenes get a spotlight and be appreciated by the public
Truly good video! Impressive choice to let the obviously talented presentation skills of your guest stand front and center. I don't think other channels would have made such a good decision, in fear that the viewers are expecting "derek." Great editing and presentation. Thank you Derek for all the different styles you do!
Cartels watching this: “Man, now we gotta buy fume hoods & those closed off boxes they use when dealing with anthrax or small pox.”
Edit: ok all I’m saying is this is just a weapons race, which can go on forever, and considering it’s drugs, it will go on forever. Point is, if your methods get better, so will theirs. Simple.
CAN YO MAMA CAN DO BETTER ?
Im sure some are already catched on.
They surely already do it, along others methods.
But the dog can detect the small traces that you leave from your shoes or hand.
If you take a box on a drug lab, then walk inside the truck to hide it, you will leave the smell.
You can see it in a scene of breaking bad.
They shoot a small bag of drug next to a truck to make the dog mark it.
The traces are enought.
i personally am going to buy a mask so i don't get addicted to all the fentanyl i am making
lmao
You've talked about how you change video thumbnails and titles before and in this case it really worked on me. I've seen the thumbnail and title about the artificial dog nose and while I'm always interested in your content this didn't really got me to watch it, because I was expecting some kind of information about how good dog noses are and I felt like I likely already know what you were going to say, so I didn't click it. The title about seeing invisible air flow and the laserplane image got me though, because that just seemed way more interesting and more likely to be new information to me. Good choice to use the laser plane image by the way, since Schlieren images may not have gotten the click from me, because I feel like I've watched a lot of videos about this technique already.
It's interesting to see the psychology of changing thumbnails & titles work on myself. Wish I could know how the different thumbail & titles played out for you on this video and if I'm a mainstream or niche consumer in that regard.
My father was a NIST physicist for most of his career, so I grew up running around the halls and being invited into labs. It’s so cool to see all this stuff, I’ve been sending each one to him, and he’s been loving it.
During the laser sheet part, I really liked seeing patterns disappear and reappear. It's like a 2D observer would see this 3D thing appear in and out of existence. It helped me slightly imagine if a 4D object would come into our 3D world
Look for a little book called “Flatland”.
Like a tesseract
that was incredible!!! i cant stop thinking how cool it would be to have a set of glasses that can do that and then just go about a regular day.
Matt is a phenomenal presenter! You can tell how much he loves the subject matter
I think this was my favourite Veritasium video of all time, the clarity in the explanations WOW
The phrase "There will always be a piece of me with you" takes on a whole new meaning.
Ah yes, that few hundred skin cells stuck in your lungs from them :)
Expanding on the dark edges showing a louder sound; you are seeing density. Given air is homogenous, the stronger the shockwave, the more air it can smash into a small space. With a good control sample and good resolution, you could create a direct pixel gray-scale to decibel to psi conversion at w/e resolution your setup can record at. Pretty amazing when you consider the setup in the video had enough control to be replicated with ease, really gets the imagination going knowing this kind of stuff is being used and shared across the internet, another amazing find good sir.
On a side note, I love the beautiful patterns inside the dark ring. Strikes me as strange that a 2d Slice of this 3d wave looks a lot like a ripple you'd make in the water.
Okay I'm going to be real, these kind of videos push me to get up from my bed and continue my studies because they show how much we can achieve as humans. Thank you to Veritasium as always!
8:13 theatrical fog
9:50 skin cells
11:30
12:30
14:30 explosives tracing
15:22 drone use
16:00 18:00
18:30 3 letter agency
Derek’s work is so well done, even when something doesn’t seem that interesting (going by the title), I always end up learning a lot, even if I think I know the topic. Thanks for posting such high quality content Derek!
You just have to love veritasium’s content. Good work man.😊
*Ok_Dont_Read_My_Namess* ....
@@GriffinZambia ok
Videos like these is what makes my days better, thank you, wish you all the best!
Indeed
*Ok_Dont_Read_My_Namess* ....
Hey, can you make a video explaining how astronomers calculate the movement of a celestial body. Especially the orbits, velocity, the position at certain time. I am very interested in this. 😄
Question for anyone: during my first ever total solar eclipse, I saw waves appear as shadows on the ground just prior to totality. Am I assuming correctly that because the sun was a smaller, more focused point of light that I was seeing a shadowgram of air current that is always there but not visible because of the sun's normally larger light source?
This is only "one dimensional" detection, could you add dimensions by adding more lasers in different wavelengths in paralel laser to get some more 3d data?
You know that’s old school mate
Yeah, would be interesting to see.
You could sweep that plane across the third axis by spinning the emitter and reflecting it off a parabolic mirror. Record a video of it and each frame is like a slice from an MRI.
2D actually, and moving the plane is usually what is done.
The change in title/thumb was good
Really impressive… and simultaneously philosophically terrifying. Does… this chill anyone else when considering how this could be used by branches in the government (in the wrong hands)..?
I mean. Dude had clear law enforcement bias. Those people are actual monsters so like your instinct isn't wrong and you're definitely not the only one.
All so Big Brother can watch you even more.......
In the name of safety of course.
It's always appreciated when science is said and then spelled out for the layman. Matt is really good at that; compliments for letting him do his thing in your edits. Amazing video! Here's to hoping you can do more right up this avenue
This bloke is great. Clear, informative, and engaging.
This brilliant video will hopefully endure for many years, It is a milestone in particle detection methods. Derek and Matt complement each other so well, two geniuses in synch. I'd like to see some research on multiple people in closed rooms and open environments, in cold and very warm (and wet) conditions talking, shouting, breathing & coughing. Along with the study the various types of masks in use from first use to being a few days old. Really find out if masks work to protect one another or just provide a method of compliance confirmation
It's amazing how it looks so much like the atmospheres in gas giants like Jupiter. For the same reasons, no doubt. It's just interesting to see it behave the same way in a much smaller scale.
This just shows how much better nature as a simulator is then using computer software. Nothing beats a laser sheet!
In this case maybe. But not for everything
Yes. Lasers are a great example of "nature".
@@donkrapf That's what I was going to say.
This was easily one of the most interesting videos I’ve seen in about 15 years of watching RUclips. This struck directly at the types of things I think about all the time - micro fluid dynamics - super super interesting. Thanks!
Lucky enough to have visited the NIST lab in DC (for energy related topics)
I'm a big fan of Veritasium, which is why I know how cool US government agencies are and that they always have my best interest at heart!
Is that sarcasm?
@@bkiii8397 Hopefully, because this is baffeling otherwise. This is so cearly a propaganda peice.
That bit about inhaling fentanyl and just dying is just classic cop propaganda lmao
@@bkiii8397 Yes. Don't get me wrong, it's really cool to see the cutting edge science and engineering done at these institutions. But, there's a certain absurdity in the juxtoposition between the focus of Derek's last few videos and how I'm used to seeing these agencies discussed.
Has he explained why he's doing this highlight series? Is he sponsored in some way or just making use of his access for content? A little weird if he hasn't addressed it.
This video is amazing. It's not only very specially informative, but the enthusiasm behind science is incredibly infectious. So, thank you to you both. Rich, you are a great educator as well as you Derek.
this guy is so interesting to listen to
Matt could be a wonderful conman if he wanted to. It's nearly scary how charismatic this dude is.
Funny, I just accepted an electrical engineer position at Lutron. Really cool to see that they're the sponsor of this video.
“Public safety and security” surely this technology will never be used for mass surveillance or any other nefarious reasons ☺️
👏insightful! seems like a miracle!
Honestly, everything in this video, including the ad, was great.
I was watching this on my TV and had to go on my phone to type this. But apart from this being an awesome video, that dude has amazing presentation skills. His enthusiasm and knowledge just captivate me and he hasn’t lost my attention for a second. Great find Derek!
14:08 Please edit this clip. This is reinforcing misinformation about fentanyl which is already high, especially among law enforcement.
There have been several cases where cops faint/have a medical episode or deny medical attention to individuals for fear of exposure rather than from any affect of the drug.
to quote--
It would take prolonged exposure to a large amount of airborne fentanyl to cause an overdose, according to the medical toxicologists. Their report references safety standards for industrial workers who manufacture fentanyl. “At the highest airborne concentration encountered by workers, an unprotected individual would require nearly 200 minutes of exposure to reach a dose of 100 mcg of fentanyl,” the report states. (100 mcg, or micrograms, is enough to have a therapeutic effect but not enough to cause an overdose.)
Most online sources report that 2mg is the minimum required to be lethal, but that is ingestion. This is 200x more than the amount _in an industrial facility that produces fentanyl_ that you would need 200minutes of exposure to for inhalation to be a concern.
Let's also not forget that fentanyl is potent, but it's still an approved drug used for medical treatments and therefore the LD50 is going to be difficult to attain even when you're taking a prescribed dose rather than just being in the same room as it.
TL;DR Risks of toxic fentanyl overdose from inhalation are _incredibly_ unlikely, even in a prolonged, unprotected setting with a much higher than average amount of fentanyl present. There are many online articles supporting this as well as articles on contact exposure.
I think by gone the narrator means they can be arrested, just guessing
I wanna work for this guy
You can apply for a police informer.
I think this was my favorite Veritasium video in a long time. Thoroughly fascinating!
Love being scammed! Bastards!
Hi veritassium
Just wanted to say you've inspired my scientific mind since thd beginning
Thank you 😊 💓 ☺ 💗
Fascinating.
Also hilarious that all this equipment was needed to learn to sample the box at the gaps rather than the solid surfaces... 😀
And thanks to u for making this video! Ur gold
@Official_Veritasium contact u how?
@@Vugen18 don't.
it's a scam, don't fall for it.
I live down the road from a NIST lab in Boulder....always wondered what they did there. Very cool!
this dude talks about fentanyl like a cop
@ 1:33, Thumbs up if you have brought your hand to your nose.
The turbulent air jet that comes out of your nose, or depending on your health...
It's so amazing to watch an expert talking about his/her field.
this dude knows so much about this topic I could listen to him teach a class, I wanna be Lazor vapor certified sir. adds more to the resume.
Ok. So how does this protect people who have their houses salted by the cartel? Because that exact thing is happening right now.
Derek and Veritasium are back again with their usual 10/10 content after the disaster that was the last video about dropping metal projectile from helicopter (Project Thor).
Ignacio really got the best out after working for Hector.
Jokes aside, this guy is absolutely amazing at explaining things, everything is so clear.
Derek, you’ll probably never see this, however, I want to say I’ve been watching Veritasium since the very early days. I love physics & to better understand how the world around me works & get a better grasp on how it shapes our world. It’s the undisputed ruler of all laws, rules, & governance of the physical universe.
Veritasium delivers great education consistently…even when it turns out your wrong. Getting things wrong is often underrated in its importance towards how we learn.
Anyway, what I’m trying to say is - I found this video very interesting & one of your all time top 10, maybe top 5 best. And, it’s really just a few old & simple principles brought together to produce some amazing new research. Loved it.
Please consider doing more w/ schlieren imaging or fluid dynamics, it’s so satisfying.
This is one of the best videos I've watched on RUclips in all of 2022.
You can tell that Matt Staymates is passionate about his job, he's also interesting to listen to, more of him please.
If they actually had a good vacuum instead of that Dyson, they wouldn’t have that problem
Schlieren and shadowgraph imaging are so much fun in acoustics. Another lab in my faculty has one of those dummies that can breathe, cough, sneeze and even fart - it's creepy as hell, it's like a corpse becoming animate. I desperately want to use it to play pranks on people ...
EDIT: It's always pretty startling to hear people working for law enforcement reveal just how little they know about illegal drugs, particularly diverted pharmaceuticals like fentanyl; people aren't refining that in clandestine basement labs in suburbia (though, people could still be working with a large quantities, cutting and/or portioning). But the "generalisation" of drug manufacture is a weird thing that US law enforcement agencies do; that methamphetamine can be made in a clandestine lab in suburbia, so fentanyl must be also. Oh, well, best of luck with "the War on Drugs" and all that. How's that been workin' out over the past four decades? Good?
They're too stupid and evil to listen or think...because not thinking enables them to steal unlimited amounts of money, and attack their enemies with police power.
cool tech but drug detection is whack
I hate the framing in this video. There is so much fear mongering and cop bootlicking going on. They could have chosen so many other examples for talking about tracing particles, from work protecting factory workers from exposure to dangerous substances to protecting children playing on polluted beaches.
Of all the examples they chose, they fear mongered about illicit fentanyl production when the real issue is overprescription in the legal market and a corporate push for profit at the cost of the health of patients.
The science in it is amazing, but the framing is absolute garbage. I really thought the Derrick would be above selling this kind of propaganda.
Edit: typo fixing
And why would this lab deal with that?
Very articulate and present in providing explaination about how all this works. Guy could make a Art channel with just the laser field and particulate flow.
Again, THESE are the people that deserve accolades and praise. But instead, we celebrate some idiot who decided they are now nonbinary, and/or created a stupid viral tiktok of nothingness. We don't need more five minutes of fame fashion brands, cosmetic lines, actors, singers, poets, or ballers; we NEED more scientist and people with useful intelligence whose contributions are everlasting. Praise to the genetically gifted, and ACTUALLY smart people of the world that make it is what it is, today.