Your Most Asked Questions on SciShow Answered
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- Опубликовано: 28 май 2024
- Got a science question you're just dying to know the answer to? We’ve compiled some of the most commonly asked science questions into one place! Join Hank Green for a new episode of SciShow, and hopefully you can get some of your burning science questions answered! Let's go!
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Sources:
What causes migraines? -Rob Margolis, patreon
• Migraines: Not Just An...
What’s the story with Schrodinger’s cat? -Rob Margolis, patreon (same dude as above)
• IDTIMWYTIM: Schrodinge...
Why is it so hard to remember dreams? -anon, tumblr
• The Science of Dreaming
How can I fall asleep? -gymnast-seal, tumblr
• World's Most Asked Que...
Why do we have baby teeth? -Uwe, patreon
• Why Do We Have Baby Te...
How does hair know when to stop growing? graysweatshirt + anon, tumblr
• Does Hair Ever Stop Gr...
3 years too late, but I’m watching (listening to) this in the dark with a migraine and it was suuuper comforting to have Hank wish me a quick recovery.
Lucid dreaming is fricking great! I rarely have them, but the moment of "Hey, this can't possibly be real so I must be asleep," is one of the most enjoyable realizations there are.
Thanks for the facts on migraines. No one has ever taken me seriously when I've had one. I was in so much pain once I contemplated drilling a hole in my skull to release the pressure. I'm not insane, that's how bad it gets.
I had 3 holes in my last apartments bathroom wall. They got there when I tried to knock myself unconcious after being forced work during a migraine and told to be back in 8 hours to cover someone else's shift because they had an upset stomach.
As I was pushed so far into the migraine I couldn't sleep and couldn't wait for the overload from it to knock me unconcious as normal so attempted to do it myself.
It didn't work and I lost the job. The person I was covering for wasn't even ill they went to some event and got a finger wag as punishment.
They said it was because he called in and I didn't, I countered that I had explained my problem before hand and can't call in for something when I am unconscious but that had I been lying and screwing off like the other guy then I would have surely called in as well as I would have had no reason not to.
@@KelsaRavenlock - man, your story sucks...I got fired over migraines too. Called in, but because I called in an hour before work, on a Monday, I had to leave a voice mail. VM was overlooked...I always had migraines on Monday mornings, and it was because of walking around for 2 hours on a Sunday. Exercise intolerance, from undiagnosed Myalgic encephalitis ( M.E.)
It got worse pretty quickly. I wasn't lying, and that's what burnt my arse.
Life is like living under house arrest now.
Sending you a virtual hug. Good luck.
I have been very lucky with how my family treats me when I have had migraines. Probably because my mother rather frequently has had them as well.
I am just dead to the world until my body stops attacking me.
Yes... that's a migraine.... whoever didn't believe you is either stupid or very ignorant.
@@KelsaRavenlock so like, the dumbest thing you can do is hit your head hard enough to knock yourself out during any situation, let alone a migraine. Next time try an emergency room....
0:43 What causes migraines?
4:02 What's the story with Schrödinger's cat?
7:42 Why is it so hard to remember dreams?
16:08 How can I fall asleep?
19:07 Why do we have baby teeth?
21:28 How does hair know when to stop growing?
4:54 - ruclips.net/video/--BslU44vWU/видео.html
@@mikeincanada_ nice ...
It's funny that he tries to explain how people get schrodinger's theorem wrong... and gets it wrong. Schrodinger wasn't trying to explain how it works with the cat. He was explaining why it's nonsense by using a cat... just fyi, super positions are being debunked. It's just the interaction between electrons. No magic required. So schrodinger was correct, and you all have been using his debunk as proof... i hope you are all ashamed...
You're the man! Thanks!
“We mostly dreamed about what we did that day” Um...I really don’t remember getting stabbed...I-I think I’d remember that
I was supposed to take a shower but I accidently watched this entire video....oh well.
Me too!!! Lol
"If you're still awake" - I am now, but had to replay video because I fell asleep during first watching LOL
I started getting migraines right before I began developing bipolar disorder.
Never had them before. All of a sudden I was laid out in bed sleeping from skull crushing headaches and nausea for days at a time. It marked a change in my ability to deal with emotions and 2 years later I was diagnosed bipolar.
"We mostly dream about what we did that day"
Me: [somehow teleported 2 states away and is currently fistfighting my 83 year old grandma] *wUt?*
Ah yes, cursed books and tiny living skeletons and fictional characters and lots of dead bugs.
Purple Fire 28 rn Mx. zzz njxjdnddRtgkfki Holo I no Jhjj hi hi to kool jk just
Considering that I once dreamed about man-eating candy, I don't think dreams are exclusively what happened thr day before
Did you play bioshock?
I think you might have some deep seated, subconscious beef with your grandma lmao
The segment on dreams is really interesting. In my early teens to about twenty I would get sleep paralysis quite often. Being aware you're still in that state is pretty terrifying. Lucid dreaming with a nightmarish panic. Lovely!
Why does it feel so nice when I feel temperature change?
(Cold pillow in a hot bed, central heating from cold weather)
+sonic meerkat I think it has something to do with just wanting the temperature change. Like the cold pillow, you feel hot, so you flip your pillow or whatever and it cools down, and then you feel better, or for the central heating, you are cold outside and want to warm up, you go inside and then you feel better.
Probably has to do with maintaining homeostasis. Your body doesn't like being outside a certain temperature range, for instance.
A big tip is to always have a metal framed bed. You can hold your hand around the bars when you sleep or when you’re trying to sleep. They’re very cooling! ;)
His migraine research is seriously accurate and very helpful
I have a question.
Why do silent farts give the impression that they smell 100x worse than loud farts? Or do they actually smell worse?
+Vel0city Hi, Different chemical composition. There is more of the odoriferous sulfuric acid and methane compounds in the silent ones and more of the expellsive CO2 in her loud ones. Now you know!:) Thanks.
"Talk about silent but deadly, huh Morty?"
Added value...
Loud farts have more air which dilutes the compounds in farts that make them stinky
@@janedoe0987 my
19:07 I really thought he was going to tell us why we have hair around our anus...
xD
+Luca Ciao Why is everybody asking this? Is there some new trend that I'm unaware of? lol
+Rohan Pandey I think it's just a SciShow thing.
+Rohan Pandey If you don't like harry ass you're clearly homophobic and triggering me into identifying as a dingle berry bush. This is a safespace!
The hair is there to prevent irritation and chafing as butt cheeks rub against each other.
Hey Hank, firstly thank you and your team for an undying passion and dedication for science.
Also, if possible I would one to ask you guys,
"How evolution played the role in development of tongues in animal (including humans) ? And how would it taste to the food we eat to animals? Also if you could shed light on role of tongue in aves, as they can't chew and hence tasting food would not occur. what role does it play in birds? "
Thank you again.
i hope this video answers: WHYYYY I HAVE HAIR AROUND MY ANUSSSSS!!!
U never stop.
I salute you
You've achieved Meme status. You will now be recognized as a meme for the rest of your life. It will be difficult, but at least you're not a Daniel.
Never give up. eventually they will answer the question
but WHYYYY is this every comment this now? I'm not complaining, i love it.
I scroll through the comments just to find you..
The worst migraines are visual migraines, because you get the vision disturbance of these strange moving wavy lines covering part of your vision but they don't completely go away even if you close your eyes, and relatively little head hurting, just wavy lines over your visual field for a few hours.
AbbeyB77 Jesus thats really horrible.
Everytime it starts i already know that the rest of my entire day And tomorrow are gonna be terrible :(((
Tension migraines are also terrible like when I get them I can't move my upper back because the nerve is pinched in my neck not just that my head feels like someone is driving a white hot fire poker through my skull I either get really bad tension migraines or I get really bad visual migraines so like I get it but this one time I was like looking outside and it legitimately looked like it was raining because that's how bad my vision was being distorted
This actually ties together a lot of things about the migraines I've had. I suffer with depression, which as most know causes problems with serotonin. With all the meds etc I was on and sometimes forgot it's likely that played a part along with being on the autism spectrum and dealing with sensory overload which causes just an overwhelming physical response and sensitivity. Neat to know some more concrete reasons and causes.
Love those long episodes like the Sleep Cycle one
You know what's funny. I had this on my Watch Later playlist and knocked out on it. My sister, being annoying as annoying as she is, woke me up for no reason while this video was playing after all the videos had looped at least once and I woke up on the sleeping question
Lol
Awww 2012 SciShow clips....Scishow has come along way since then. Well done Team!!
Wow, Schrodinger's cat thought experiment has never been that complex when I've heard it. It's usually just been a cat in a box with a chunk of radioactive material. No crazy contraptions.
💗these compilations!! And thank you for the very thorough episode on Migraines! I suffer from them and I thought your information was well researched and very accurately complete! This is an excellent resource to share with non-migraine friends and family, to help them understand what we are actually going thru. ☺
11:30 - I’ll never forget a particular project in college. 3D prototyping was a huge part of my education and thus was in RUclips’s baby years, so no easy tutorials out there. I was struggling immensely with a particular piece and had 21 hrs left to submit it for milling.
That night, I sat straight up in bed and frantically fumbled for a notepad and pen. I scribbled down some steps then fell right back to sleep. In the morning, I followed the steps and it worked perfectly… I had solved it in my sleep.
Love this show so much! I have learned more watching this show, then I have in a very long time and I am enjoying every moment of it. All the presenters have their charms and I love everyone but there is just something really special about Hank.
Also the range of topics and sister channels are all great :)
What volume of tears is it physically possible for someone to cry in one day?
A lot
I’m going through a breakup and cried the whole day and even busted some of my blood vessels under my eyes :)
@@saydee6591 aww =(
One of the best videos you guys and gals have put out across all your channels. Love the attention to detail!
On the whole Lucid dreaming topic; When I was young (7 or 8) I used to have the this nightmare where I knew someone was in the dark, just about to get me. I'd always wake up before they got me. Then one day, I become aware of what was going on and looked to my side to see a knife. I picked it up, threw it into the darkness. I've never had that dream since.
Thank you so much for the wonderful migraine information! I have had chronic migraines my whole life and it was such a wonderful and exciting surprise that this is actually an FAQ, and that you did such thorough, accurate, and all round perfect explanation of them ❤️ I know this is like 4 years later but I just wanted to leave this comment in case someone sees it because I really appreciate it and it made my day 😁
I suffer (well my husband is the one who suffers actually) from parasomnia. I'm not paralyzed as I should be during REM sleep which has resulted in me biting my husband while asleep, hitting him with my fist, kicking him. He's a very brave man 😂
I question whether you have ill feelings for your husband. The biting and kicking sound like you are (subconsciously) showing aggression toward him. I say this because I have unintentionally done this to my boyfriend whi😢sleeping. I remember punching him while I was completely asleep. He woke me immediately. Possibly I was as getting ready to wake up- thus being able to remember it. However I was still asleep and wasn’t planning on punching him.
You really need to seriously think about how much you want to stay with him. I’m sure you really do love him. However I suspect that there’s things he either does OR reminds you of someone else- who does/did things that really upset you.
You may want to see a professional professional (therapist) and discuss what is going on in your past and current life situation.
If you really have issues with either your husband or that he reminds you of someone with issues you don’t like, then it would be helpful for you as a person to have a better relationship with your husband
OR
maybe it’s time to move on to a different relationship.
We only have a finite amount of time on earth. We ultimately want to have the best possible chance of happiness. You owe it to yourself and to your partner to fix this big issue.
Have a blessed new year. - Mrs. Bradley Cooper
Crap circus... God I love this writing :) these early videos were so funny. Great writing and wonderful delivery. Thanks Hank!!
Thank you for addressing the question about migraines! It was very helpful!
Schrödinger's cat: Just add a window in the Box! Too simple?
This is like a time machine of Hank XD
It might be a stupid question, however I was unable to find the answer even after some excessive googling:)
Q: Can you catch flu, while you are already sick with common cold? My hypothesis was, maybe we evolved to easily get common cold, because what it does - it makes your nose and throat mucus go into overdrive thus preventing the flu virus getting in (as, if I'm not mistaken, it gets into you when your nose and throat are dried out and both of the viruses roam the streets mostly at the same time, at least in my parts of the world..). The obvious way to falsify this hypothesis - find out if you can get flu while being sick with common cold. And I'm stuck on step one... thus ends my scientific career =)
Interesting, I'd like to know that as well
I would think it is not like can I get pregnant if I already am, but more like can I pick up a ball if I already have one in my other hand.
@@qualicumwilson5168 it's more like - your site cannot be hacked, because it's already under a heavy ddos attack, so the attacker can't use a 0-day as they get 404'ed ;)
edit: or a bank robber can't access the bank, because it's surrounded by dirty hippies with their drumm cicrles protesting; and the poor guy can't enter and his demands can't be heard;)
Hank Green is the best. Love your videos
Question: This has baffled me for a long time. Is it more sanitary to use paper towel or hand-dryers to dry your hands?
+Greg Hussey Paper Towel. Because paper towel is pretty close to sterile, you avoid getting new bacteria on your hands for longer. Hand dryers are like breeding grounds for bacteria, as it is warm and comfortable, and has plenty of food (water and skin). Hope that helps =)
Ugh, I've had a time few years ago when I had a migraine at least once a week and I threw up because of it at least once a month. It's especially delightful when your parents couldn't give a crap and keep blasting the tv on full volume while you're trying not to die.
I’m lucky. I have them once every year or two, and medication is very effective for the pain.
Of course the meds do nothing for the other symptoms. The weird feelings, visual disturbance and irritability or sadness or confusion etc still occur
I’m sorry you get really frequent ones.
This is my life. Thanks for validating it.
Wow, vintage Hank. Makes me laugh. Or to paraphrase him, is all kinds of crazy:)
7:25 i do like multiverse theory because it makes sense.
It also razors the grandfather paraodox rather nicely
My childhood dreams were over and over so I remembered them. Later dreams got harder to remember unless there was something really outstanding.
In the first dreaming one Hank acts like your waking brain is a dictator
I once solved a sudoku in my dream that I couldn't solve in real life
Awesome
But if you couldn't solve it in real life how do you know the way you solved it in your dream was correct
@@kavalogue because when I woke up I still had the sudoku book in my hand and put the numbers I dreamed in the respective boxes and finished the sudoku
Great stuff as usual.
The best description of quantum mechanical stuff EVER!
The superposition doesn’t collapse when you open Schroedinger’s box, it collapses when the particle does or doesn’t set off the poison … any interaction outside the quantum system collapses it.
It's 2:40 am. I just woke up 11:27 seconds in to this video. I dozed off while watching a video about life on earth. 😂😂😂 perfect video to end up on while asleep.
I got my first migraine when I was 12 and it was certainly scary. I only get them a few times a year now but I get all those annoying symptoms (speech is similarly weird as it is when you get a stroke, I can't really see,like if I see my face in the mirror it looks "wrong", and my face goes numb). Because I have circulation problems I do worry if I had a stroke I might think it's a migraine (my father had a stroke a few months ago and didn't realize anything was wrong). But I try not to think about it too much☺
The second best compilation i like ;)
11:13 also, benzene rings--snake swallowing its tail.
I can cure migraines and headaches of most any time.
1. Point to the headache
2. Press until it changes slightly.
3. Hold until it is gone.
4. Release pressure slowly
Excellent. Moar!!
Altogether now: BUT WHY IS THERE HAIR AROUND MY ANUSSSSSSSSSSSSSSSS
Hank cracks me up!
A wonderful reason for why I keep having dreams where I am endlessly working a cash register
that’s just hell
As a lucid dreamer i recommend everyone to look it up and if you want to learn it give it a try. I've learned it in several weeks (around 6 weeks) and it is worth it!
I often dream about things that interest me, whether or not they relate to what I do during any particular day. In one dream, for example, I met wildlife film host Nigel Marven and neurologist & author Oliver Sacks at a conference on women's issues in developing nations. We were listening to a Pakistani lady speak. Unfortunately I woke up before she'd gotten far into her talk.
For several years now, I've been keeping a dream diary to record interesting dreams like that as soon as I wake up. I find that doing so has made my dreams become more vivid and detailed. I've also recognised recurring themes and patterns in my dreams, which helps me gain insight into some of what my subconscious is working through. (These themes are very specific to me, not standard dream symbolism of any sort.) It's very interesting, and I highly recommend it!
love your videos
Great one!
20:41 "they (the wisdom teeth) were super helpful some 100 million years ago" lmao
Awesome idea to do this compilation :-)
Past Hank was a lot more expressive (which I like, it amuses me).
Could you do a video on “new daily persistent headache” please?
I started getting migraines when I was put on a estrogen hormone patch when I was 16 and have had pounding headaches in my temples every single day since. It’s been 6 years and that’s what my neurologist says it is. He also says that there’s no cure
Used to get migraines in Middle school. For some weeks nearly every week on a random day, always right before lunch I would get a blind spot in my vision that acted like an eye floaty, but would move around. A headache would develop and become excruciating, light and sound felt like large objects colliding with the INSIDE of my eyes, all I could do to relieve the pain was hyperventilate and sometimes I'd start smacking myself around the top of my head. If I fell asleep before the blind spot went away, I would wake up 6 hours later, feeling dizzy and nauseous, just completely dazed as if I had, something I now understand, a really bad hangover.
My mom actually got me on some sort of medication these giant pills, I only took it for 2 days, because my left leg went numb for 2 weeks and it became very difficult to walk. My leg eventually returned feeling and the migraines MOSTLY went away, I've been using some very nice (different) medicine for the past few years that doesn't make my leg numb, and I'll only get migraines if I don't keep up with my medication or for some reason decrease my consumption.
17:01 THAT EXPLAINS WHY I HATE IT WHEN MY AUNT TURNS THE LIGHT ON AND NEVER TURNS IT OFF EVEN THO SHE LEAVES FOR LIKE AN HOUR AND I'M JUST TRYING TO SLEEP
well that and because i love the dark so much that her turning on the light all of a sudden is physically painful
this is old but learning about REM dreams made me really sad. ive got cptsd and ive had extremely vivid dreams of my abuser doing horrible things to me. like ive been really scared at times that she wiuld hurt me because shes threatened violence multiple times. makes me sad that ive had such dreams. for years ive had such nightmares and they can actually add onto my cptsd because of how vivid they are. it really makes me sad that my brains planned how to escape and survive those situations
It's kinda odd but also relieving how both my parents had their wisdom teeth pulled out (many years ago) but I didn't have to.
THANK YOU!
I like this long episode
Excellent episode, but please do the anus hair thing so those comments will finally go away. They got old a long time ago.
ikr
+swSephy | Sim Racing
It's an important question!
Correctrix
It's not trolling. It's an actual question
+Diana, the Inorganic Vegan You can ask an actual question in a trolling way, the two are not mutually exclusive, they are trolling but it is also an actual question.
Eric D
He actually wants to know.
The first time I got a migraine I thought I was dying and called my mom.
Used to get them when I was in puberty. Would just scream and cry till I fell asleep it hurt so bad
I remember my first migraine and my eyes couldn’t open in school had to blindly be escorted to the office
I'm Saudi Arabian, I don't experience insomnia but I honestly like RARELY sleep, i don't know why but I was surprised when you said that.even my own mom doesn't sleep early.
I lucid dream 90% of my dreams. Its Awesome! :D
Always playing the bulletproof invunerable immortal hero.
How can I induce lucid dreaming ...? I love those dreams where I can give couple steps and take off, and fly all around. That amazing feeling of freedom, always makes me feel good and remembering that dream for ever...
Fall asleep each night reciting the words Am I awake or am I asleep? Took me a week to induce lucid dreams.
The migraine stuff was really interesting I get migraines every single month around that special time in which my insides hate me, it's quite nice to know that they're not just really bad headaches!
17:31 ... wh....what? wait... what?.... seriously??..... jesus christ, suddenly having energy after those "sleepless nights" makes SO much sense.
A lot of people who abuse caffeine late into their sleep cycle are often caught in a self medicating loop. It can be very easy to fall into for various reasons.
Mine was a long period of working 6-14 hour shifts a week. I broke out but that was a pretty big psychological fight for me.
Here's a question: Does all light travel at the same speed? Like candlelight and headlights and sunlight and laser light? And if someone can change any speeds, can someone travel faster than light then? Thanks for a very entertaining and informative show.
All light travels at the same speed
I get migraines with visual auras pretty often (like once a month on average, but sometimes even twice a week.) They are the worst. The aura phase Is like, imagine if for any other disease you basically end up seeing a countdown clock in your field of vision like "Hi, there, as soon as this thing hits zero, you will experience unspeakable pain for the next few hours. :)"
I often end up vomiting from it, but usually, the only minor upside is, I tend to get kind of a feeling of euphoria once it is over. Apparently post-migraine euphoria is a postdrome symptom that sometimes happens.
Also, I dunno if it's actually proven, but for me, my levels of hydration seem to play a key role in how many migraines I get or if I get them at for a time.
The "aura" thing is real. I discover vision disturbances, seeing lights, shapes, and blurred vision every time I smoke a blunt with too much herbs in it.
Technically, you ARE awake in the first stage of sleep. People often slip into it doing familiar tasks (if you've ever driven home and realized you'd just...forgotten...the drive, congratulations, that was stage one of sleep.) It's basically a "space out."
Thanks
Last time I came this early I was using an incognito tab
lol some may not get that
+Ricky Wolfe who isn't going to get that?
I read that schrodinger developed his thought experiment involving the cat was to show how absurd quantum mechanics was/is.
Often time during REM sleep when I was younger, I would have 5 second clips play in my head. They would be very boring. But I ended up experiencing them months and years afterwards, and I started freaking out at how my brain can accurately predict the future.
i know this comment is 5 years old but this exact thing happens to me. a lot of my dreams are so similar to my real life sometimes i can’t tell the difference and i would have dreams like me putting in my two weeks or riding a bus with someone i don’t know, and then many weeks or months later i experienced those moments in real life
I once saw a blue hue around everything while I was working for a couple of hours
I have a science question: Sometimes when you swim in the sea, the water changes back and forth between hot and cold. Why is that and how can the water continue to be out of thermal equilibrium in that way?
when I remember my dreams I regularly have lucid dreams, I've even had lucid nightmares, so I don't try to stop it or wake myself up because I know it's not real. Given, these nightmares are usually more creepy than terrifying.
Yawing (1:46) is so catching. :O
I yawned after I read your comment lol
And I yawned again after I read your comment. That is the beginning of an endless story. :O
+Christoph Geske I yawned too haha
I had a migraine during my last period. I spent about 12 days sleeping in a closet because it was dark and quiet. Painkillers did not work. My body hurt, my neck hurt and I felt awful.
oh! questions! [whether I know them or not, but good questions to be asked.] why are some people afraid of "creepy crawlies" ie spiders, snakes, bats, and why are some people not...and then...why are some strangely attracted to them? [I love snakes]
how do solar panels work? how do capacitors store energy?
why are hospitals so expensive? how come they're not told to be reasonable?
That was the 1st explanation of Schrodinger's cat i actually understood
Shrodinger’s cat was not designed to explain quantum physics but criticism the explanations by pointing out how ridiculous they were. Like a cat that is dead and alive at the same time. Until you look. Then it’s just one of those.
Dear SciShow, how do carnivorous plants work? ( how do they digest, extract nutrients, excrete waste, Ect.)
acupuncture works very well for the treatment of migraines
Lucid dreaming is awesome, I have them all the time :D
It's like a recurring dream I have..... when I'm driving in my dreams, I never really break ..... hate it
21:40 FLOCK OF SEAGULLS HANK!!?😅!
Lol, my mouth is so small that I have to get my adult teeth pulled right back down to 20 again. I will have the same number of teeth as babies! :)