Lead - Periodic Table of Videos

[HERPDERP6860]

Professor

 Hipster

[potatoheadist]

i have been able to get lead to exhibit giant para magnetism [sticks to magnet]

[Geo95dude]

Lead is my favorite chemical element because it can protect us from radiation.

[pilopitropicas]

@pilopitropicas

потому что иначе я бы те волоски подражать немецким гением Африки, по крайней мере могли бы быть более оригинальными и имеют свои собственные очень inbeli расчесываются.

[roboneko77]

the submarine camouflaging  techniques were very interesting!

[pilopitropicas]

ese idiota se piensa que es albert einstein

[rogerdotlee]

@pilopitropicas И этот идиот думает что он "Курлий" Говард

[aspyossef2000]

i wish he was my teacher of my grandfather so i can sit and listen to his stories all day

[donnyab]

@aspyossef2000

lol would you like to sit on his knee ?

[xja85mac]

You should really update that, at least to a higher resolution if you can...

[rimwydas44]

The liquidators of the nuclear waste in chernobyl power plant used Lead suits : )

[stuntpea]

WOW! That was brilliant!

[athlonz2007]

@NaniTreas probably Uranium Oxide

[laisla148]

hum,,.. muito bom mais nao entendi nada♥ kisses

[Barnekkid]

That was very interesting.  Thanks for the vid.

[10HOME10]

does the professor use a van de graff generator instead of hair gel?

[boiledhooker]

@10HOME10 That is the most intelligent comment I have heard about his hair

[fairyheli2]

@10HOME10 who doesn't enjoy being electrostatically charged?

[GreenDayEmoGirl1]

@NaniTreas yeah .... what is it?

[frankensteinmoneymac]

I love hearing Science from a guy who actually looks like a Mad Scientist......it just makes learning more fun!

[leosedf]

He forgot to mention that when lead is exposed for a long time on radioactivity or on large amounts it becomes itself radioactive.

[murphyld66]

It would have been interesting if professor Political had a piece of regular glass the same size as the leaded glass and weighed them separately to show the additional mass of the lead in the glass.

[noobler9]

I wonder if lead might've been responsible for caligula and nero...

[TeronGorefiendxxx]

lead is the last stable element. everything that follows is radioactiv.

[GreenKoldAid]

i like my submarine yellow.

[FiliPinoy95]

i thought lead was dangerous/poisonous\toxique?

[nathster9]

Poisonous of lead ?, I think what the proff ment to say was the toxicity of lead.

[Raafay23]

Chuck Norris bathes in leaded petrol ;P

[HowToScience]

What is the Radioacive source

[perazaroberto2]

you are smart .i say thankyu .for you .dios te bendiga .good bless you .

[perazaroberto2]

he podido notar algo .cambian muy rapido las letras que rejuego para que paresca que ensenan mas nio tengas tiempo de procesar la informacion en su cerebro hasta esto hacen estos asesinos de la mente norteamericanos .

[TosXMellow]

jezz. olny 85k view. you would think that the wonders of the wolrd would be awesome but.

people rather watch justin bieber vids. ='(

[biolarulezderwelt]

@TosXMellow You might consider working on your grammar.

[TosXMellow]

@biolarulezderwelt lolwut u taklin' bout?

grammar isn't my strongest yeah i know.

ever heard the story about the mexican who didn't know any english and became a brain surgeon?

[Woshmistro]

The person who invented Leaded fuel also invented CFC then when he got polio he invented a device to help him in and out of bed but something wrong happened and he was strangled by it and died. That was some guy!

Yay QI and PeriodicVideos! Yay knowledge!

[Serostern]

Get a pair of bricks that actually fit, Marty? =P

[pinkytm1]

CRT /TV glass is also leaded to shield the viewer from x-rays.

[Almontmarine]

r u left-handed?



[Turquesai]

Ah Romans... :) Led + Vinegar = SWEET! YUM :)

Thanks for making my night full of knowledge :)

[crookedfruit]

Last night a hypnotist convinced me I was a soft, malleable metal with an atomic number of 82.

I'm easily lead.

[superbadlucre]

@crookedfruit fie on you FIE I SAY

[lastingpain22]

@crookedfruit

hah. hahah. :D

[Mulletsrokkify]

Excellent video series. Thanks for putting these up. Another application of leaded glass is in cathode ray tubes. Only in the funnel glass these days, it used to be in the front panel glass too to reduce X-Ray emissions. Lead oxide is used in the seal which joins the panel glass to the funnel. Thanks!

[tiagandremo]

i dont know why but alot of people are scared of lead due to lead poisoning, i tell my friends you can handle lead all you want just dont touch your mouth till you washed your hands really well, i love lead, i wor with it all the time as me and my uncle hunt, i hunt with a muset to i use lead muset balls

[Soulrider2012]

@tiagandremo Really? You hunt with a "muset" and use lead "muset" balls. Is that anything like a Musket or Musket balls?

[tiagandremo]

@Soulrider2012 ever heard of a speling mistake, not all of us are as clever as you captain smart _||_(-.-)_||_

[EPICGUYDUDE]

lead is the last stable element. bismuth is like radioactive with half life 1900000000000000000 years.

[Desmaad]

Actually, beta radiation is positrons.

[DevilMaster]

@Desmaad Beta radiation can be electrons OR positrons. When a neutron decays to a proton, it emits an electron and an antineutrino. When a proton absorbs energy and it's converted to a neutron, it emits a positron and a neutrino.

[SadOlympist]

Well thats probably the reason why sparta is madness :D

[ParadigmShift22]

lead killed my father be careful with this stuff

[organist121893]

@ParadigmShift22 yeah good advice. lead is actually far more dangerous than Uranium-235

[tiagandremo]

@ParadigmShift22 your dad died of lead and plutonium??? because in the video serie about plutonium you posted there the exact same sentence exept that you put plutonium intead of lead, nice 1 kido ; ) you dont have to lie, we all know there are some dangerous elements out there , i bet your dad died of radium and uranium too huh l0l

[unclecoolie]

I may be very ignorant here, but isn't even casual handling of lead toxic?

[ndyt]

unclecoolie, no, as long as you dont lick your hands it is ok, and adults are not as susceptible as children.

[TheCaptainLulz]

EUREKA!!!!!!!!!!!!

Ive tried everything to get MoS2 to become soluable, with no success. than you menion peroxide on the sulfide and ...... EUREKA, orange molybdenum sulfate!!!thank you SO much.

[tiger004]

BeerLambert law

The probability for a photon to penetrate a certain material drops exponentially with thickness.

If the gamma ray source is strong enough, it is possible to kill a people behind 9m of lead.

[ChronicMist]

there isn't any radiation called teta LMAO. hardest to stop radiation is gamma, which needs about 20cm of lead. that's it. you don't need 9 m of lead ffs...where do you think you are, in cartoons? alpha radiations don't need protection only if it's really close. alpha rays have a range of about 20 cm from the metal they come from... finish primary school first before commenting nonsense ffs

[uut0]

@serialkissersband ah k ty :D

[omid11]

i used lead to clean my card reader hurray for lead!

[uut0]

is it true that gamma rays can get trough 9meters of lead?

[ChronicMist]

no, 20 cm is enough to stop it.

[chemiealex]

Depending on how much radioactivity there is...

It's true that you sometimes need really thick lead plates but normally you don't use 9 m of lead...

[Debbie321lopez]

I love lead now..

if you put ur hand in water and then put ur hand in liquid lead you don't burn ur hand :D  ( put ur hand in for like a mili second )

[AllPyrotechnics]

What is the substitute for lead in petrol?

[ndyt]

AllPyrotechnics, better engine design.

[villainy07]

the lead paint on submarine

can someone explain how that work with chemical equations?

i'm kidda confused and i'm thinking if those are redox reaction or not...

thanks

[theskachristiano]

Seriously, its a theory, isn't it?

[theskachristiano]

Fact? I thought it was a theory?

[theskachristiano]

Burden of proof is on you, not me. Proof that you've taken courses on the subject matter, or you're a liar.

[tekinak007]

LOL... what are you? 12 or something? Your the kind of twatter who says 'nah, i didnt see it, show me a video or it didnt happen' kind of person right?

Ignorant people are those who dont know and dont bother to look into it. You theskachrisiano, by definition... are ignorant.

[theskachristiano]

Proof, or you're a liar.

[Joshinnator]

oh so that's why it's called unleaded.

[SUPERSPAMMER18]

what's up with the hair? lol, I wish my teach used that...

[kenan6346]

lol he's the definition of the mad scientist. they're the best kind

[itsahme200]

omg his tie is a periodic table! Now that's how you dress like a chemist!

[DeltaPhi79]

@itsahme200 And you go out in the rain and snow with a Periodic Table umbrella.

[drock6]

TheVeletlen what the hell are you talking about dumb fuck.

[j822bosh]

Equally as exciting as lead metal are the lead compounds. Many cool chemicals are lead based. Lead iodide, lead nitrate, lead dioxide, lead tetraacetate. Cool stuff indeed!

[BluBreathProductions]

LEAD IS MY FAVORITE ELEMENT!

[Hakidia]

Eat it, then tell me its your favorite metal again ;)

[BluBreathProductions]

I said it was my favorite element. Plutonium is my favorite lanthanide. Lithium is my favorite alkaline. Neon is my favorite noble gas. Iron is my favorite transition metal. and furthermore akfiwelkfnhsjhauigbaufk samfhasmcd smfn fjjd!

[Hakidia]

Technically wouldn't lead be you're favorite transition metal :o?

[BluBreathProductions]

Not anymore. I changed it.

[philsaspiezone]

actually plutonium is an actinide element with an atomic number of 94. Also a transuranic.

[douro20]

Don't you mean actinide?

[culwin]

You truly are the leadmaster

[JacobRudduck]

That submarine story is a stroke of genius...

[Hakidia]

black is the absorption of all colours white is the reflection of all colours

[BluBreathProductions]

And how does this relate to lead?

[Hakidia]

Its a reply to someone else -.-

[thrunt]

You are both right. When we mix coloured lights we get white, when we mix coloured pigments paints etc we get black.

[scottycatman]

it depends on what you mean, like white light is all colors when split into a light spectrum, but black is all colors mixed, but not split.

[fossil98]

white is all the colours

in theory anyway

[ThAwOrLdInFlAmEs]

they do say that lead paint can protect against Nuclear Fallout.

[bionerd23]

hmmm. i wonder if lead glass is appropriate for shielding radioactive material that emits beta radiation and thus, possibly produces bremsstrahlung? could be, due to the shield not being pure lead, but rather glass and lead - or would you say it'd still be advised to use a light element, such as Al, to shield the beta emitter - and use lead glass only as a second layer of shielding?

[Nikolaii257]

In the earlier versions of Materia Medica, there are references made to lead poisoning and ways to counteract its toxic effects. Ingestion of large amounts of garlic or onions. A glass of "arificial lemonade" (A well diluted solution of sulfuric acid in water) or two teaspoons of elemental sulfur. The concept was to convert the lead in the human body into an inert lead sulfite. It reminds me of Barium, whose many salts are poisonous except for Barium sulfate used in imaging like Iodine sol. .

[MYTHWIZ]

how can lead glass block radiation, when it doesn't block visible light?!?!

please respond

[jmrdelorean]

It deals with the wavelength of light or photons that the particular material absorbs. Leaded glass just happens to let the visible spectrum through. Whereas it will absorb radiation.

[Orcinus24x5]

Alpha (helium nuclei) and Beta (electron) radiation are much larger particles than photons, which have no mass at all.

[MYTHWIZ]

duh, i mean gamma rays, x-rays, etc.

[JebusGeist]

"duh, i mean gamma rays, x-rays, etc. "

The question you asked was far too generic to get the specific answer you obviously wanted. What's funny about that is that you then insult those people who attempted to answer you, even tho you were the one who failed to ask the question properly.

Bravo.

[siliconchipped]

einsteins and don king's love child ..

[agetube83]

hmm we use lead glass mixture lenses in my job for ppl with very high short sightedness (myopia)

refractive index of about 1.9

it weighs a tonne on ur face and is soft as well

so it loses alot of its scratch resistance of normal index glass lenses.

[fastlane59]

It's is very nice... thanks

[tybo09]

In my Atmospheric Chemistry book, it says that the gentleman that invented tetraethyl lead also invented CFCs.

Poor Charles Kettering. He really meant well.

[heavymetlkiss]

remeber in indiana jones the kingdom of cristal skull when indiana went in than lead refrigorater and suvived the nucular blast?

[LINK22134]

how did Indiana fit in a fridge ?!?!O_O

[dreamofthemirrors]

Watch the film ;)

[LINK22134]

Wtf..i did, i dont remember posting that comment ._.

[SuperDuperMan180]

the better question is how did he get out from a fridge that locks from the inside, why was the fridge not destroyed in the blast, and WHY THE FUCK did he get out of the fridge and stare at the atomic blast? he would have gotten such terrible radiation poisoning...

[bigkahunaburger55555]

its a movie

[chernobleman]

This is SCIENCE!

[2szymi]

a stupid comment

[theinsane102]

I like it.

[Hakidia]

It wasn't a lead refrigerator it was lead lined and it would be impossible for him to survive and even if the refrigerator wasn't ripped apart by the explosion then Indiana would probably die from the instant declaration of the landing after being throw so high up.

[pyrobombs]

not to mention the overpressure would just plain crush the refrigerator

[Chaosblade777]

Not to mention it might have simply turned molten from the intense heat that no doubt would have been in the area. But then again, it's just a movie anyways, I suppose scientific accuracy was never a big concern to George Lucas..

[Hakidia]

Or he could have boiled if it didn't melt.

[Harisdoubled]

@Hakidia dude...it's just a movie

[Hakidia]

@Harisdoubled dude....that was a comment from 1 year ago

[666pecker666]

@Hakidia deceleration

[Hakidia]

@666pecker666 OH MY A GOD TYPO? WE MUST CORRECT THIS IMMEDIATELY! OH WAIT YOUTUBE DOESN'T HAVE AN EDIT BUTTON! YOU'RE NOT HELPING!

[666pecker666]

@Hakidia Yelling and sarcasm. Are you by chance a fifteen year old girl?

[Hakidia]

@666pecker666 because the name 666pecker666 is totally mature and besides that typo was made a year ago.

[DarkRain9000]

wow this is pretty cool. This is a very informative video.

[HilariousD]

This dude is nutty lol hysterical.

[megdabest]

Mad Professor!

LOL

[Envergure]

lol @ "beeta" particles

[cryingindian]

haha loser

[jacobssandy]

I think it's more likely that you would be pronouncing it wrong because he is the one speaking English with the accent of the place it comes from

[Envergure]

"Beta" is a Greek letter (Ββ), and in Greek there is only one pronunciation: Mine.

[jacobssandy]

that's not true at all, there are numerous different accents in almost all languages and no one is right and the others are wrong in some objective sense!

[BaphometKnows]

Lead is formed from radioactive decay of certain heavier metals.

[GroovyVideo2]

lead car tire balancing weights are on the road sides Everywhere --

[saintaureus]

lead acetate is delicious!

[jacobssandy]

you only think so because you've gone mad from eating so much of it

[ElveeKaye]

MUCH better than Aspartame.

[wakka922201]

Imagine being drunk from the wine and getting lead poisoning at the same time and how delirious you would get..

[saintaureus]

lead poisoning isn't something that happens quickly.

[ciucinciu]

i love lead

[Envergure]

lol "beeta"

[ktmggg]

Which is why most modern cars have catalytic converters on them. Unfortunately thsi is a cause of acid rain.

[viperxeon]

one of my uncles almost died from lead poisoning once, he was burning off lead paint off of railings outside a police station. he was lucky that one of the doctors noticed his blueish gums. (a sign of lead poisoning)

[revengerste]

WHITE GLASS LOL and your a prof.

[jaketheman987]

he said the color white. clear is not a color so he would have sounded stupid as a profesor if he said "the color clear"

[MangakaRob]

<.< technically he's right though...to have an abscence of color is what white is. All colors/wavelengths of visible light coincide to make white light...or rather, white light is bent to make certain wavelengths of color...so since the 'clear' glass has no color the conclusion can be that the clear glass is white...

[TomMarAlem1987]

Black is an absence of color. Black matterials absorb radiation in the wavelengths associated with visible light. White materials reflect all of those wavelengths.

[anamu7tram]

the abcences of colores is black

[MangakaRob]

I'm an artist so in my terms black is all color and white is no color lol but I know thats irrelevant.

[anamu7tram]

well ya paper is white so

[Ratbiker]

are you speaking of light? or pigment?

[anamu7tram]

light

[revengerste]

BUT he could have said its opacity

[anamu7tram]

your right

[tybo09]

Interesting fact: The guy that invented Tetraethyl lead (the "lead" gas additive) was also the guy that invented CFCs.

Mother Nature hated that guy.

[TherealRaust]

It's also worth mentioning that the lead had no real use. The Tetraethyl was the stuff that made the engines run smoothly.

[dirtybird2212]

bullets and weights

[evansp12]

A very interesting and informative video.

[maekern]

Very good. I like the new content.

[IncognitoInnominate]

yeah!

[IncognitoInnominate]

Look at his tie. it has the elements on it.

[keitaidenwaKern]

haha youre right dude, it does have the elements on it. That guy is so cool, especially his hairstyle. I wish I had a teacher like him

[roendm]

me too...i wished so

[manzilla86]

You can actually stop alpha particles with a piece of paper. Hich energy beta particles are NOT supposed to be shielded by lead because it causes Brehmstrahlung Radiation (x-rays). Lead is primarily used to shield gamma rays. And it can never blocks 100 %, just close to it.

I really respect these video's just offerins some information.

[manzilla86]

You use lead glass in Nuclear Medicine (and a ton of other things, I suppose). The interesting thing is that for the normal nuclides you are working with, about a half inch of lead glass will be sufficient. However, when working with positrons (positive electrons-which annihilate with a regular electron) you need about three to four inches of the stuff!

Just another maybe useless but interesting fact!

[dagger86]

This is probably my favourite. Probably.

[DrBones666]

It's also liquid.

[dickelliott01]

I absolutely love these video, I watch them all! Maybe you could make some videos using compounds next? Could be really interesting

Glass is not white ! :P It