Americium is used for *ionic* smoke detectors. But now days it is *optical* smoke detectors that are commonly bought / used. It just use LED light and a photocell to detect the light from the LED. If smoke gets in the way, the detector will go off.
afaik, the LED in optical sensors is not pointed onto the detector. As soon as smoke gets in, the light from the LED gets scatteres and then gets into the detector, which makes them go off.
Fun fact:This WAS actually Trumps original motto, 😡 "Make AMERICIUM great again!" He thought the atomic weight was somehow diminished due to illegal aliens.. (Drum roll please) From outer space.
I’m a bit sad Palladium wasn’t even mentioned! There’s some groundbreaking research going on where Palladium and gold have been used in lasers to eradicate cancer cells. (That, and it’s one of the first Hardmode ores in Terraria.)
Palladium is commonly used as a catalyst in organic chemistry, the 2010 Nobel Prize in Chemistry was awarded to an organic synthesis which uses palladium as a catalyst.
Scandium is probably the most underrated one. It's used in light but strong alloys for things like baseball bats, bicycle frames to fighter aircrafts, metal-halide lamps, and in some lasers.
Thulium: Used for green spectral lines in arc lamps, but otherwise interchangeable with all the other rare earths. Francium: I'm lost here, it's far too radioactive to be useful. Research perhaps? Thallium: Dangerous toxin. Astatine: Studied for use in radiation therapy, and not much else. Promethium: Luminous watch dials before tritium was a thing, exotic fluorescent bulbs. Barium: Oil well drills to float rock chips out of the hole, used to trace the digestive system as it is opaque to x-rays, old vacuum tubes to eliminate air and moisture, YBCO superconductors, and makes for great dead chemist puns. Californium and onward: Nuclear research, things to name indescribably important people after.
Fun fact: I'm allergic to gadolinium. At least in the IV form used during MRIs. I know this because I had a heart attack and extreme anaphylaxis on the table during an MRI after they put it in my IV. Supposedly "no one is allergic to gadolinium!" I think all the people I've met since then, online or in person, who have also had reactions, would beg to differ right along with me. Stridently.
I've known what neodymium is since I was 10. I'm sure everyone knows what they are by now since most people have at least one magnet with them in it. Heck, my vibrator uses neodymium snap magnets to recharge. I don't know why they chose that method but it's cool.
Actually you heard of neodymium magnets you thought that they were just a very strong type of magnet and is just a name but you didn't know that it was made of that type of element
These elements may not be so well known by most people, but they are pretty significant as rare metals go. I would love to see a video about truly obscure elements like lutetium and dysprosium.
Another interesting use for Gadolinium is in digital x-ray as a scintillator- when x-rays strike Gadolinium Oxysulfide (GdOS) it results in a secondary transmission of visible light, which photodiodes pick up to produce the pixel values in a modern radiograph. However by now, the more expensive and more sensitive Cesium Iodide (CsI) has pretty much taken over that role- even in low end systems.
Osmium is mostly used as an hardening agent in several alloys. As little as 0.1 to 1% may make a metal to brittle for normal use. The tips of armour piercing ammo can be made of tungsten-osmium steels.
The thing I most often go to when I hear about osmium is osmium tetroxide, used for fixing and staining samples for optical and electron microscopy. A biology teacher in high school really drove home it's toxic when explaining how it worked.
Lorenzo Pagani Osmium is brittle, so it would fragment on impact and do tons of damage to the target. Because of osmium's high density, even a small fragment could carry lots of energy. Sounds like the perfect anti-tank round to me.
A really cool and informative segment I would love to see would be going through every element on the periodic table explaining its uses and its toxicity if any to humans. Also how abundant the elements are on earth as well as in the universe.
In my Intro to Physical Science course a few semesters ago we had to choose a element of our choice to talk about to our classmates and I did my presentation over Osmium and I feel so proud being able to instantly recognize it's form from the thumbnail and clicked this video so fast to see if I was right. When he got to number 6 I was smiling ear to ear while he was talking about it. I'm very puzzled with my reaction since I haven't thought about it since then but I did take a liking to it when researching it knowing it wasn't a "popular" element topic like everyone else picked. These little things really make my day.
Regarding Numer 4: I thought Ionisation Smoke Detectors use the Americium to ionise some molecules of "Air" to measure the current between 2 electrodes with a potential between them? They don't measure the radioactive decay itself.
Stibium is called Antimony only by English speakers and is also used in lead-free solder, some batteries, bullets, friction-resistant alloys, semiconductors, pigments, veterinary pharmaceuticals, etc.
Glassblowing lenses are made of didymium (Pr and Nd). The main purpose is to block the yellow sodium flare due to use of sodium as a flux in the soda-lime glass (normal "soft" glass). Record needles are typically carborundum or sometimes diamond. There is so much more that you state as fact that is really just an alternate to more common materials.
Another use for antimony: it's alloyed with lead to make it hard and strong enough to withstand the kinetic energy imparted on it by certian combustion reactions within specially designed metal chambers
I truly appriciate your great references. I enjoy the quick informational videos, however I feel that it gives your video that much more validity by showing where the information came from. :) Thanks for continuing to teach me science in a interesting way.
See, I like this guy and Hank. They make it look like they are actually explaining whatever to us instead of speaking and moving like a robot, making it obvious that they're reading from a script.
Americium was made famous by David Hahn in the 90's by scavenging smoke detectors to gather the 241Am to make his breeder reactor for an Eagle Scout project. While the reactor never achieved critical mass, his mothers back yard and shed became a superfund site and had to be cleaned by the EPA. The tiny amount of radiation in the smoke detectors are Alpha rays and the gold that the Am is sandwiched between is a noble metal, and absorbs most of the rays. Pretty interesting.
2:36 Very few microphones are of the dynamic (electromagnetic) type. Practically all microphones made in the last 30 years (and probably longer) are condenser microphones, which operate by varying capacitance. The most common type of condenser microphone is the electret. Increasingly, microphones are manufactured as MEMS devices (micro electromechanical systems, i.e. mechanical microchips), where the electret microphone is extremely tiny.
I can say, the smoke from plastics that have antimony trioxide is horrible, it burns your throat and yet also feels like you are breathing in a bunch of needles at the same time. I work a plastic extruder and we run flame retardant plastics regularly, a couple of which use that antimony trioxide.
It at least applies that there are only 2 sexes, some people hold a differing definition of the word gender. I agree that it would be easier if we didn't have to deal with all these made up "genders", but your statement can't be confirmed as true unless you use circular logic in your definition of the word gender.
there are only 2 sexes, because that's defined by your genitalia, but gender is defined by what you feel in your mental self, so there are infinite possibilities because everyone is different. The vaguer we define gender as, the fewer different possibilities there are, because more people will fall within that.
dankmemelord Ouch, I am so glad my joints fall apart under stress rather than the bones breaking. Hope your finger heals soon without too much pain. In the meanwhile strap the damaged finger to the one next to it to provide support, it's what the hospital call 'buddy strapping' and it will help.
I still remember my Chem professor going on about her thesis dealing with transition metal catalysts, with a focus on Osmium compounds, then later hearing about it's other uses like here. It's one of those odd metals that crops up in the oddest situations.
I’ve heard of Praseodymium, Neodymium, Americium (though I didn’t recognize the name at first), Osmium, and Antimony. I have not heard of Yttrium, Californium, or Gadolinium. Thanks for the educational video. I think that Lithium and Bromine are really underrated. They’re so useful for reactions. Bromine more so. Than Lithium, but Li gets special attention because it’s less reactive than the other alkali metals and being the safest to handle, as well as LAH.
In my Oilfield experience most companies actually use Americium-Beryllium, not Californium, as a chemical neutron source. However, this may not be the same type of measurement that you're referring to with a "Moisture Meter". For density measurements, Cesium-137 is used as a gamma-ray source. More recently, many companies have moved towards pulsed neutron generators which, while being more expensive, only emit neutrons when power is applied. This has the safety benefit that if the device is lost in transport or abandoned underground, it stops being radioactive. Source: My Oilfield Experience.
Here is a list of possible subjects: Why do I hate the smell of baby formula? How does a watch work?(Mechanical, quartz, complications, etc.) Does polishing platinum really not remove metal? Does Gold oxidize? Can I be allergic to gold or platinum? I'm a watchmaker so I already know some of these but I things but I think a lot of people would want to know them.
hi, MRI researcher here. I enjoy your videos a lot but I wonder where you got your info about MRIs... happens that they don't use neodymium magnets (yet) but supraconductive coils, and that there is no moving part except for the table...
It will dry up in your colon and lower intestine then you will become unable to pass anything and you will rupture your bowel resulting in death from internal bleeding. Or you will just eventually shit your self.
That feel when you put in your retainer for the first time in two and a half weeks. Also the only two I hadn't heard of are praseodymium and gadolinium. I like this channel
Fascinating. With the widespread use large elements in electronics, I'd be surprised if everything is of natural origin. How/where do these elements originate?
6 лет назад
as long as you only want the fruit, you'll never see it grow. water your plant, not just walk by, pick the fruits and act like you're the kind of person that would water it. study science.
Osmium hadn't been used in fountain pen for probably a hundred years. It's far too toxic. Historically the tipping on the nib was an impure mix of osmium & iridium, but since maybe 1930 or 1940 it's been an alloy of iridium and platinum. The other reason osmium isn't used much is that it's extremely expensive, on a par with platinum. Osmium tetroxide (danger, Will Robinson!) does get used in certain microscopy stains, but it's one of the nastiest chemicals around. It might also get used in organic synthesis, but again, very nasty stuff.
They're looking at stopping the use of antimony and using more phosphorus or organic based components in flame retardants (or they were last I checked). It's just finding ones that are effective enough while still having the processing and durability properties manufacturers want.
Few MRI machines use permanent magnets, but certainly not the one shown, which undoubtedly uses a superconducting electromagnet. Power plant generators are certainly not excited with permanent magnets! They are separately excited, ie like an electromagnet.
What about the usage of those elements in catalysis? I always thought that these elements were vital to help unlock some important organic reaction pathways.
I think zirconium is one of the most underrated elements on the periodic table. It's in nuclear reactors to observe neutron and it can make a cheap diamond substitute.
I think you should do a few more episodes like this.
Agreed. I kinda wanna see episodes about useless elements too.
+GIRGHGH Aka Girg useless?
Stilllife1999 I meant least useful.
I agree!
About 10, to be more precise :)
Americium is used for *ionic* smoke detectors. But now days it is *optical* smoke detectors that are commonly bought / used. It just use LED light and a photocell to detect the light from the LED. If smoke gets in the way, the detector will go off.
Good to know
tiuschiu the main reason is that the radiation type were and are cheaper than optical. The radiation type also came before optical.
afaik, the LED in optical sensors is not pointed onto the detector. As soon as smoke gets in, the light from the LED gets scatteres and then gets into the detector, which makes them go off.
I Thought It Was Used It Shotguns, Hot Pockets And ARs.... Guess I Was Wrong XD
Fun fact:This WAS actually Trumps original motto, 😡
"Make AMERICIUM great again!"
He thought the atomic weight was somehow diminished due to illegal aliens..
(Drum roll please)
From outer space.
I’m a bit sad Palladium wasn’t even mentioned! There’s some groundbreaking research going on where Palladium and gold have been used in lasers to eradicate cancer cells. (That, and it’s one of the first Hardmode ores in Terraria.)
Palladium is commonly used as a catalyst in organic chemistry, the 2010 Nobel Prize in Chemistry was awarded to an organic synthesis which uses palladium as a catalyst.
Praseodynium isn't well known? I guess you could say it has...
Bad Pr.
Llamamall ha
Llamamall YES!
i regret making that exact joke 2 years ago
Not sure if I should applaud you or boo you. Applause, probably.
YAAAAAAAAHHHHHHH!!!
My life always gets a little better when I get a chemistry video
Thank you SciShow
I would love if they made a SciShow Chem
mowhawkarrows So far only in my dreams...
Sameee :)
Kevin my life gets better with astronomical videos from sci show
Agreed, always cool to learn about real life chemistry and new facts
One lesser known element is Hipsterite... yeah, you've probably never heard of it.
Or is that Hipsterium... ?
Master Therion +
Yeah, Hipsterite sounds more like a mineral.
Master Therion +
Thats the one that is used for everything, but only before it becomes cool. Then it is friggin useless.
Scandium is probably the most underrated one. It's used in light but strong alloys for things like baseball bats, bicycle frames to fighter aircrafts, metal-halide lamps, and in some lasers.
I want to hear about the useless ones.
myysterio2 There's plenty of them! Thullium, Francium, Thallium, Astatine, Promethium, Barium, everything after Californium
Thulium: Used for green spectral lines in arc lamps, but otherwise interchangeable with all the other rare earths.
Francium: I'm lost here, it's far too radioactive to be useful. Research perhaps?
Thallium: Dangerous toxin.
Astatine: Studied for use in radiation therapy, and not much else.
Promethium: Luminous watch dials before tritium was a thing, exotic fluorescent bulbs.
Barium: Oil well drills to float rock chips out of the hole, used to trace the digestive system as it is opaque to x-rays, old vacuum tubes to eliminate air and moisture, YBCO superconductors, and makes for great dead chemist puns.
Californium and onward: Nuclear research, things to name indescribably important people after.
You are the most useless element
myysterio2 C2N14 is pretty useless.
Sevarium
Fun fact: I'm allergic to gadolinium. At least in the IV form used during MRIs. I know this because I had a heart attack and extreme anaphylaxis on the table during an MRI after they put it in my IV. Supposedly "no one is allergic to gadolinium!" I think all the people I've met since then, online or in person, who have also had reactions, would beg to differ right along with me. Stridently.
I'm allergic to plutonium myself
Doped yag lasers sounds like some sort of metal band.
Ska...
Pfft, everyone's heard of Neodymium
knucklecorn especially after the monster magnet trends.
I've known what neodymium is since I was 10. I'm sure everyone knows what they are by now since most people have at least one magnet with them in it. Heck, my vibrator uses neodymium snap magnets to recharge. I don't know why they chose that method but it's cool.
International Space Station
>vibrator
Actually you heard of neodymium magnets you thought that they were just a very strong type of magnet and is just a name but you didn't know that it was made of that type of element
@@bl1t7theprotogenhybrid72 seems rather assuming, ngl...
These elements may not be so well known by most people, but they are pretty significant as rare metals go. I would love to see a video about truly obscure elements like lutetium and dysprosium.
Could you do a video on the rarely-used, lesser known elements?
Can you do one on cerebral aneurysms? I had one rupture at 19 and would love to learn more!
phantasm1234 where was the cerebral aneurysm
Mine was at the anterior communicating artery, one of the more common spots for them.
these yags be dope, dude
Carrot Slice I read this before getting to yags in the video and I just assumed you were British, using some slang I didn’t know
Lesser known Elements Matter as well
Has somebody made that joke yet?
Alkatron Elementary, My dear Watson.
The sans image makes it so much better
Nah, ur goof
Half lives matter, anyone?
Another interesting use for Gadolinium is in digital x-ray as a scintillator- when x-rays strike Gadolinium Oxysulfide (GdOS) it results in a secondary transmission of visible light, which photodiodes pick up to produce the pixel values in a modern radiograph. However by now, the more expensive and more sensitive Cesium Iodide (CsI) has pretty much taken over that role- even in low end systems.
Osmium is mostly used as an hardening agent in several alloys. As little as 0.1 to 1% may make a metal to brittle for normal use. The tips of armour piercing ammo can be made of tungsten-osmium steels.
Neodymium is pretty well known because of magnets.
The thing I most often go to when I hear about osmium is osmium tetroxide, used for fixing and staining samples for optical and electron microscopy. A biology teacher in high school really drove home it's toxic when explaining how it worked.
Osmium always sounded to me like an amazing bullet and artilery material. shane its too expensive to make amunitions out of.
and would make a ridiculous recoil
Lorenzo Pagani Osmium is brittle, so it would fragment on impact and do tons of damage to the target. Because of osmium's high density, even a small fragment could carry lots of energy. Sounds like the perfect anti-tank round to me.
lithium shells, reacting with water in body when penetrated, causing explosions. explosive rounds
Osmium isn't really that much denser than uranium (roughly 18% denser), which is indeed used in armor-piercing ammunition.
Uranium bullets, it will kill you now, and later
A really cool and informative segment I would love to see would be going through every element on the periodic table explaining its uses and its toxicity if any to humans. Also how abundant the elements are on earth as well as in the universe.
You should do a video on superconductors!
Semiconductor
raymond weaver Superconductors
In my Intro to Physical Science course a few semesters ago we had to choose a element of our choice to talk about to our classmates and I did my presentation over Osmium and I feel so proud being able to instantly recognize it's form from the thumbnail and clicked this video so fast to see if I was right. When he got to number 6 I was smiling ear to ear while he was talking about it. I'm very puzzled with my reaction since I haven't thought about it since then but I did take a liking to it when researching it knowing it wasn't a "popular" element topic like everyone else picked. These little things really make my day.
Regarding Numer 4:
I thought Ionisation Smoke Detectors use the Americium to ionise some molecules of "Air" to measure the current between 2 electrodes with a potential between them? They don't measure the radioactive decay itself.
You never really think about what the rest of the periodic table is, and where they are used. This was interesting.
what about technetium? first radioactive and first artificial on the table
Thanks, IM getting ready to start a chemistry course!!!!!!!!!!!
So, could you make a Kyber Crystal with Yttrium?
Stibium is called Antimony only by English speakers and is also used in lead-free solder, some batteries, bullets, friction-resistant alloys, semiconductors, pigments, veterinary pharmaceuticals, etc.
you didn't mention bismuth. 😔
Bismuth doesn't matter.
Was thinking the same thing. My hopes are now up for that it is pretty well known.
Mr. Bixby no one likes bismut
Arad Seyed :(
It's pretty though, and it also helps people with diarrhea!
Jordan Shank ....my heart😧
DUDE! Awesome episode. Could we have another?? Same topic please. I want to see some Tc or maybe some Kr???
I always thought yttrium was pronounced "YIT-tree-um". I guess you learn something new every day :)
Etymology of each element mentioned
1. Praseodymium
"praseos" + "didymus" + "ium"
(green) (twin) (element)
2. Neodymium
"neos" + "didymus" + "ium"
(new) (twin) (element)
3. Yttrium
Ytterby, Sweden+ "ium"
4. Americium
Americas + "ium"
5. Californium
California + "ium"
6. Antimony
"anti" + "monos"
(not) + (one/alone)
7. Gadolinium
Johan Gadolin (Finnish Chemist)
this episode was super interesting! thanks sci show :)
Very good. Hard science and hard engineering. "...we're great at finding ways to use..." almost anything. Kudos.
why are there immature jokes around this comment section
Because we are a failed species.
Ooops Toontown probably because there are immature jokesters commenting
Jordan Shank kek
Uuuhhh. Pull my finger.
Ooops Toontown why? This is the internet, that's why
It would be interesting if you did a full show on each element.
Antimony trioxide is actually Sb2O3!! Not SbO3
Guy who invented the smoke-detector: "Dude I cant get this thing to work..."
His friend: "Have you tried making it radioactive lol"
When did they change the spelling of Praesodymium?
. . .
And Berenstein Bears?
Oh, it was actually always Berenstain, not Berenstein. We were just dumb as kids.
Indium is one of my favorites (used transparent conductive semi-metal glass complexes in smartphone screens)
People keep forgetting about the element WarriorsBlewA3-1Leadium. It was a groundbreaking discovery
10,000 Subscribers without Videos I like it
Chemical symbol Gs?
(yes, I know it's a joke)
thats not an element
i didnt realise it was a joke at the time
whhhhaaaaaa-?
This is the best of the presenters. I liked this video as it doesn't dumb anything down and is interesting.
I heard of Osium on the show Fringe.
Peter Rabitt I'm talking about an element not a person.
ThunderGun2 That show was great i miss the show
No, I think it's the guy that co-presents Pointless.
hehe that's a very UK-specific reference
ThunderGun2 you forgot an m
Glassblowing lenses are made of didymium (Pr and Nd). The main purpose is to block the yellow sodium flare due to use of sodium as a flux in the soda-lime glass (normal "soft" glass).
Record needles are typically carborundum or sometimes diamond.
There is so much more that you state as fact that is really just an alternate to more common materials.
Another use for antimony: it's alloyed with lead to make it hard and strong enough to withstand the kinetic energy imparted on it by certian combustion reactions within specially designed metal chambers
I truly appriciate your great references. I enjoy the quick informational videos, however I feel that it gives your video that much more validity by showing where the information came from. :) Thanks for continuing to teach me science in a interesting way.
If you click on the description you see all their sources listed. In every video!
HIS FUCKING HAIR MOVES WITH EVERY WORD HE SAYS!
I now cannot un-see that
thefriendlymadman I laughed way to hard at this.
thefriendlymadman it's bothering me
See, I like this guy and Hank. They make it look like they are actually explaining whatever to us instead of speaking and moving like a robot, making it obvious that they're reading from a script.
I wasn't looking at the screen and thought he said "crazy-ih-dimium" lol
Americium was made famous by David Hahn in the 90's by scavenging smoke detectors to gather the 241Am to make his breeder reactor for an Eagle Scout project. While the reactor never achieved critical mass, his mothers back yard and shed became a superfund site and had to be cleaned by the EPA. The tiny amount of radiation in the smoke detectors are Alpha rays and the gold that the Am is sandwiched between is a noble metal, and absorbs most of the rays. Pretty interesting.
I spent about 5 minutes messing with Michaels' voice.
ok
🤯 This was remarkably well done from the speaking, to the animation, composure, topic, detail... I really enjoyed this. Subbing for sure.
I still have a slight crush on him...
2:36 Very few microphones are of the dynamic (electromagnetic) type. Practically all microphones made in the last 30 years (and probably longer) are condenser microphones, which operate by varying capacitance. The most common type of condenser microphone is the electret. Increasingly, microphones are manufactured as MEMS devices (micro electromechanical systems, i.e. mechanical microchips), where the electret microphone is extremely tiny.
Ah yes, Antimony & Cleopatra.
WONDERFUL video, good explanation and a superb topic!!!!!
No Cobalt? the lich king will be displeased.
Omar Hussein my sister was also displeased
strider04 She must be the lich king
Omar Hussein Cobolt* No need to be wrath babies
I can say, the smoke from plastics that have antimony trioxide is horrible, it burns your throat and yet also feels like you are breathing in a bunch of needles at the same time. I work a plastic extruder and we run flame retardant plastics regularly, a couple of which use that antimony trioxide.
I identify as a single americium atom.
You deserve the right to shoot out alpha particles
i identify as a shitty meme about people whose identities i find confusing
I shoot gamma rays every time I watch certain videos.
I identify myself as bismuth
i identify as a trash can.
more about periodic elements and its chemical, physical properties and usage please. 108 worth of episodes 😊😊😊
Biologists did a really interesting experiment where they determined there's only 2 genders.
It at least applies that there are only 2 sexes, some people hold a differing definition of the word gender.
I agree that it would be easier if we didn't have to deal with all these made up "genders", but your statement can't be confirmed as true unless you use circular logic in your definition of the word gender.
there are only 2 sexes, because that's defined by your genitalia, but gender is defined by what you feel in your mental self, so there are infinite possibilities because everyone is different. The vaguer we define gender as, the fewer different possibilities there are, because more people will fall within that.
There are 3 genders. He/she/it(they).
There are 2 sexes.
Super interesting video! Thanks, SciShow!
I clicked on this video so fast my f***ing finger broke
dankmemelord You should get that checked out, it sounds bad. Maybe stay off the internet for a while, just incase.
dankmemelord Ouch, I am so glad my joints fall apart under stress rather than the bones breaking. Hope your finger heals soon without too much pain. In the meanwhile strap the damaged finger to the one next to it to provide support, it's what the hospital call 'buddy strapping' and it will help.
Ashlea Wynter good point
I don't use those fingers for f***ing
Put some Americium on it and it will be fine by morning.
I still remember my Chem professor going on about her thesis dealing with transition metal catalysts, with a focus on Osmium compounds, then later hearing about it's other uses like here. It's one of those odd metals that crops up in the oddest situations.
I’ve heard of Praseodymium, Neodymium, Americium (though I didn’t recognize the name at first), Osmium, and Antimony.
I have not heard of Yttrium, Californium, or Gadolinium.
Thanks for the educational video.
I think that Lithium and Bromine are really underrated. They’re so useful for reactions. Bromine more so. Than Lithium, but Li gets special attention because it’s less reactive than the other alkali metals and being the safest to handle, as well as LAH.
Li is famous because of baterries
There's no such thing as "a lesser-known element" to me, because I've memorized all the names of the elements. Fat lot of good it's done me!
So THAT'S how smoke detectors work. Nice.
In my Oilfield experience most companies actually use Americium-Beryllium, not Californium, as a chemical neutron source. However, this may not be the same type of measurement that you're referring to with a "Moisture Meter". For density measurements, Cesium-137 is used as a gamma-ray source.
More recently, many companies have moved towards pulsed neutron generators which, while being more expensive, only emit neutrons when power is applied. This has the safety benefit that if the device is lost in transport or abandoned underground, it stops being radioactive.
Source: My Oilfield Experience.
Bismuth squad anyone?
eyyy
Yeeeee
Wish you would have talked about the use of tri- and pentavalent antimonials in the treatment of leishmania etc.
you should make a video on the most useless elements
Oxygen
Here is a list of possible subjects:
Why do I hate the smell of baby formula?
How does a watch work?(Mechanical, quartz, complications, etc.)
Does polishing platinum really not remove metal?
Does Gold oxidize?
Can I be allergic to gold or platinum?
I'm a watchmaker so I already know some of these but I things but I think a lot of people would want to know them.
lazer eye surgery sounds so much more awesome that it actually is...
hi, MRI researcher here. I enjoy your videos a lot but I wonder where you got your info about MRIs... happens that they don't use neodymium magnets (yet) but supraconductive coils, and that there is no moving part except for the table...
Amazing choices, great video! Though in my opinion, Manganese is the most underrated element
No tungsten? That one's my favorite 😢
You mean, of course, wolfram.
Too popular but still useful
What about thallium, caesium (cesium), rhenium, seaborgium, and the element of surprise?
What happens if you hold in your poop I must know!
It will dry up in your colon and lower intestine then you will become unable to pass anything and you will rupture your bowel resulting in death from internal bleeding.
Or you will just eventually shit your self.
That feel when you put in your retainer for the first time in two and a half weeks. Also the only two I hadn't heard of are praseodymium and gadolinium. I like this channel
We'll never get Unobtanium.
The Avatar writers could have been a little more creative with that.
dbsirius You could say it's... unoptainable.
YEEEEEAAAAAAAAHHHHH
Anston [Music] They didn't invent that term, engineers did.
Praseodymium is also one of the only words with every vowel (including Y) occurring once.
Libertarianist what about u?
ONII SAMA Touche
cuse of this channel i got an A on biology test.
But got a C- on your english test.
👍
-Monstrous- 682 haha it's a chemistry video better luck next time
Creeper Kohlmann I wasnt talking bout the video.
Fascinating. With the widespread use large elements in electronics, I'd be surprised if everything is of natural origin. How/where do these elements originate?
as long as you only want the fruit, you'll never see it grow. water your plant, not just walk by, pick the fruits and act like you're the kind of person that would water it.
study science.
This video was posted a few seconds late.
Osmium hadn't been used in fountain pen for probably a hundred years. It's far too toxic. Historically the tipping on the nib was an impure mix of osmium & iridium, but since maybe 1930 or 1940 it's been an alloy of iridium and platinum.
The other reason osmium isn't used much is that it's extremely expensive, on a par with platinum.
Osmium tetroxide (danger, Will Robinson!) does get used in certain microscopy stains, but it's one of the nastiest chemicals around. It might also get used in organic synthesis, but again, very nasty stuff.
The way he pronounced the elements triggers me
thanks for a great episode.
the best one i've seen on your channel yet.
Not first
They're looking at stopping the use of antimony and using more phosphorus or organic based components in flame retardants (or they were last I checked). It's just finding ones that are effective enough while still having the processing and durability properties manufacturers want.
please make a series completing tht periodic table!!
Few MRI machines use permanent magnets, but certainly not the one shown, which undoubtedly uses a superconducting electromagnet. Power plant generators are certainly not excited with permanent magnets! They are separately excited, ie like an electromagnet.
If you liked this video, you should also check out periodicvideos. Probably my top two channels and this one's a nice overlap
What about the usage of those elements in catalysis? I always thought that these elements were vital to help unlock some important organic reaction pathways.
Prayesodynium is also used as a yellow pigment in ceramic glazes.
Please make another video and talk about the rest of the elements.
I think zirconium is one of the most underrated elements on the periodic table. It's in nuclear reactors to observe neutron and it can make a cheap diamond substitute.
You are fantastic, thank you for your show
I know Praseodymium because its fun to say. I know the rest due to periodic table/ element songs and I did research on almost all of them.