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Lead: The Original Artificial Sweetener

Оценок: 16432 | Просмотров: 718062
Lead is really useful when you add it to things like paint and gasoline. Problem is, it’s also poisonous. Hosted by: Hank Green ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Justin Ove, John Szymakowski, Fatima Iqbal, Justin Lentz, David Campos, and Chris Peters. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow Or help support us by becoming our patron on Patreon: https://www.patreon.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow Sources: http://www.atsdr.cdc.gov/toxfaqs/TF.asp?id=93&tid=22 http://www.thenation.com/article/secret-history-lead?page=0,0 http://www.rsc.org/chemistryworld/News/2007/January/19010702.asp http://www.niehs.nih.gov/health/topics/agents/lead/ http://www.theatlantic.com/features/archive/2014/03/the-toxins-that-threaten-our-brains/284466/ http://www.radford.edu/~wkovarik/ethylwar/IJOEH.pdf http://www.pbs.org/benfranklin/l3_inquiring_medical.html https://books.google.co.nz/books?id=oAAAAAAAMBAJ&pg=PA94&hl=en#v=onepage&q&f=false http://www.slate.com/articles/news_and_politics/explainer/2007/08/why_do_they_put_lead_paint_in_toys.html http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1139187/ http://www.smithsonianmag.com/arts-culture/sugar-of-lead-a-deadly-sweetener-89984487/?no-ist
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Текстовые комментарии (1547)
Joe Fala (14 дней назад)
It's a great thing that lead isn't killing our children anymore. Neuroblastoma is still killing lots of kids and it's trying to kill mine. Please do an episode on neuroblastoma and shout out to Alexa's channel https://m.youtube.com/channel/UCxQFKPfODKy1RzYPIccVoEQ Thank you for your consideration.
Mudder Fukker (16 дней назад)
“There’s so much to like about Lead, except the part where it killed a bunch of people” LMAO!!
ADEpoch (19 дней назад)
So... what about inhaling that vapour when you solder some components onto a PCB? IS that the lead, or the flux? Just asking for a friend.... Because I turned out normal myself >:-D
Jennifer Ortiz (29 дней назад)
But can I lick it just once? I'm curious.
unkleskratch (1 месяц назад)
Hank should hold 'deliver a message with enthusiasm' seminars for the rest of the sci show crew.
Randell Darcky (2 месяца назад)
Remember the good old days? When all our Wine could lead to a good time
Obi Wan Cannabi (3 месяца назад)
they wont admit that lead in fuel probably caused the fibro and ALS epidemic we see today
Obi Wan Cannabi (3 месяца назад)
what you are saying is artificial sweeteners have always been bad for your health lol
SolarCasanova (3 месяца назад)
So now that you scared the world. Will there be a follow up video on how to remove the lead from your body?
Mercury Chan (4 месяца назад)
So lead might be the reason why Caligula was such a nutjob?
Ciarrai B (5 месяцев назад)
Wow I never thought about the fact that petrol (fuel) was called unleaded because it doesn’t contain lead. All our petrol in Australia is unleaded so it never occurred to me there could be leaded petrol. Lol, learn something new every day!
Max Bainrot (5 месяцев назад)
lead also was used in solder. well until EU introduced RoHS which meant the introduction of lead free solder. Fun fact, often the flux used in soldering is actually far more harmful then the lead (though citation needed)
Bunny Girl2448 (5 месяцев назад)
Artists in the United States still use lead white in their oil paintings. They use it despite knowing the damage because of its unique properties and look that can’t be duplicated. So some thing it’s worth the risk. You can find it today in fine art supply stores labeled “silver white” or “crackle white”
hokiepokie (5 месяцев назад)
I ate paint chips as a kid... This explains a lot!
jamest35 (6 месяцев назад)
hmm, maybe that's why Caesar starting getting crazier and crazier in the days leading up to his assasination
Dan c (6 месяцев назад)
1:38 Kid: can I have lead? Mom: knock yourself out
Ed McKenzie (6 месяцев назад)
We also use lead to give people NEW face holes.....
Lance Combes (6 месяцев назад)
I don't know, I think considering who all was running for president in 2008, 2012 and 2016 we're still using too much lead lol!
Angela M (6 месяцев назад)
Yeah guys, DON'T put lead in your faceholes
Glitchy Glitch (6 месяцев назад)
Gotta get that daily dose of lead sulphate.
MicrowaveGamer (7 месяцев назад)
All of your face holes. Lol.
Zane Robbins (7 месяцев назад)
Death: The Original Artificial Sweetener.
Joshua K (7 месяцев назад)
Leaded gas is still available for purchase as race fuel and for certain agricultural uses. Yay?
Bram Jans (7 месяцев назад)
Thank Petterson
BLT Player (7 месяцев назад)
Claudius, right?
Dave D (7 месяцев назад)
Is that the reason Caligula was so crazy?
AutonomousVII (7 месяцев назад)
I should probably tell my girlfriend about her lead pocket rocket then!?
Ερεβος (7 месяцев назад)
Faceholes, you say.
RRW (8 месяцев назад)
What about bullets? I'm not an expert, but I believe some use lead and some use lighter metals. I mean obviously if used in war then lead probably helps more than anything, but what about hunting? Wouldn't that make the animal dangerous to eat?
Oskar Skog (7 месяцев назад)
The metal needs to be somewhat dense, a bullet made of a lighter metal would be less deadly. Solid pieces of lead aren't too bad as it is quite unreactive. And without blood circulation, the very tiny amount of lead ions that have been dissolved won't travel far from the fragments of the bullet, which you wouldn't want to eat for other reasons as well.
TheMagicalC (8 месяцев назад)
So, there's a town called sweetwater... And lead makes water sweet... UMMMMMM
Metta Crawler (8 месяцев назад)
Lead causes "acquired neuroporphyria". Increased δ-Aminolevulinic levels which block GABA receptors are a response to lead poisoning. Lead paint is still permitted for a variety of uses, art supplies, lines on the road, marina. Leaded gasoline is still for sale as "racing fuel". Propeller airplanes are still fueled with leaded avgas. Crop dusting from prop planes spread lead dust on the soil that is used to grow food.
Max Murphy (8 месяцев назад)
left out the fact that most general aviation aircraft still uses leaded gasoline called 100 Low Lead
Brian Jackson (8 месяцев назад)
Is that why kids back then would be caught licking the walls
GhostShipSupreme (8 месяцев назад)
Maybe everything including stories from the far past was just a fever dream...
Ben Logic (8 месяцев назад)
I don't care what anyone says! lead is amazing I've been working with it in paint and solder for ages you just don't lick your hands or the paint and it's fine.
Horner (8 месяцев назад)
It is so delicious
The Postal Dude (8 месяцев назад)
God creating the universe "So how about I make a plentiful metal is capable of so many things and to top it off it's also poisonous"
Sky Anthro (8 месяцев назад)
But lead is still used in bullets though? every time I get shot I'm getting lead poising
Oskar Skog (7 месяцев назад)
Not really. If you only get shot once every couple of months or so, and get the bullets removed, you should be fine. I'd be more concerned about tissue damage and bleeding.
Self-cucking Whiteman, FAKE NOOSE (8 месяцев назад)
Lel muricans and their freedom lead
ViraIshnia (8 месяцев назад)
I wonder if the ingestion of lead helped lead to the downfall of the roman empire. It seems that having a bunch of crazy people running your empire would make things go downhill that much faster
Amelia Morrow (8 месяцев назад)
"Not to self: it's not candy" Welp, there goes my weekend
Letta Mego (8 месяцев назад)
"""Lucifer Curves" tells the stranger-than-fiction true story of how preschool lead poisoning has caused crime waves across centuries and around the world. Lead poisoning also explains USA racial disparities in education, abortion and unwed birth rates, and arrest and incarceration rates. Rick Nevin's peer-reviewed research on this subject has been widely reported by the global news media. In Lucifer Curves, Nevin puts all of the pieces together, including figures showing how lead exposure trends have accurately predicted ongoing crime trends in the USA, Canada, Britain, Australia, and New Zealand. Moreover, Lucifer Curves presents new pieces of this puzzle, showing how lead poisoning can explain the "dawn to dusk of delinquency", and historic trends in stature known as the "antebellum puzzle". Other figures show that lead poisoning has also predicted USA trends in education and unwed teen pregnancy. Nevin presents clear evidence that lead poisoning has caused these societal trends, based on causation indicators that the World Health Organization has described as a “mainstay of epidemiological textbooks and data interpretation”. Nevin presents this evidence in terms accessible to anyone with a curious mind. He also explains how preschool lead exposure still poses an important public health risk, how we can economically eliminate the greatest source of that risk, and how the legacy of lead poisoning has profound implications for current policy debates over criminal justice reform and the death penalty."
lukethejoker (9 месяцев назад)
why does the bucket of paint i saw once say it has lead in it, and it was bould in the 2010s.
Chris Read (9 месяцев назад)
So that's why thw Roman emporers were all mad
William Morey-Baker (9 месяцев назад)
Aspartame IS BAD FOR YOU! IDGAF if Romans were so stupid they put lead in things to sweeten, that doesn't make your diet DR. Pepper addiction any less of a disgusting health hazard
John Becich (9 месяцев назад)
Moderator forgot to say that tetraethyl lead's removal from the marketplace coincided quite exactly with the arrival of the miracle-cure for most photochemical smog: the platinum-plated catalytic converter. Yup, lead is ABSOLUTELY toxic to that platinum catalyst. While there was an overlap in the marketplace, a physical impediment was invented to prevent "mis-fueling." That is, the fueling input ports on cars were made smaller, on catalyst-equipped cars, to prevent mindless car owners from using the older (large nozzle) pumps (associated with leaded gasoline) to pump gasoline into their car's "gas" tanks.
Logan (9 месяцев назад)
EPA? You mean that thing now headed by someone who thinks it shouldn’t exist?
That Emo Bitch (9 месяцев назад)
I licked my wallpaper, I'm fine from lead
A Tr (9 месяцев назад)
So, what if i put lead in a hole that is either not MY facehole, not a facehole, or both?
flailios (10 месяцев назад)
I'm surprised you didn't mention Plumbous. The very reason the symbol for lead is Pb comes from Plumbous, because the romans used it for plumbing...hence the name plumbing.
oli godendrocyte (10 месяцев назад)
funny that our Congress has rampant dementia treating medication prescriptions
ScottishBeverage62 (10 месяцев назад)
So people in the past literally ate lead?
Duchesse de Berne (10 месяцев назад)
"My car gave me dementia. Where am I?" - Grandpa
jbond5150 (10 месяцев назад)
Now let’s all wait to see if Trump reverses the EPAs phaseout of lead in gas. i wouldn’t be surprised.
Doug sillig (10 месяцев назад)
Don't lick the walls
man boy (11 месяцев назад)
So I guess the side effects of lead waited until the 21st century to hit us eh?
Shovlaxnet (1 год назад)
Could lead, when mixed with another chemical, become safe to use? Kind of like how Florine is dangerous in its raw form, but it's used safely in things like toothpaste?
Lagartofero (1 год назад)
Who downvotes these videos? They're awesome...
The Phantom Safety Pin (10 месяцев назад)
Anti-science idiots do. Go look up the vaccine-related videos on this channel sometime.
Uni B (1 год назад)
Hmm, no mention of tin/lead solder that was widely used in all electronics and still some today?
Laura Eshelman (1 год назад)
Face holes 😂
Jose Ortiz (1 год назад)
If you want to kill someone give them food sweetened with lead sugar
SaltiestRaccoon (1 год назад)
This is not all entirely accurate. Lead is not very bioavailable. It's not 'easily absorbed into the blood.' Certain FORMS of lead, however, are more easily absorbed, and unfortunately these lead salts are the same ones that taste sweet. Elemental lead does not taste sweet and is not nearly as toxic. I like to wash my hands after soldering, connecting lead sinkers or working with lead miniatures just to be on the safe side, but I think it's important people don't freak out unreasonably about lead products. If you're not actively chewing on them or eating them... you're probably going to be fine. Again, lead salts are a different story.
warhawkjah (1 год назад)
4:35 What about your other holes?
Hong Liang Pun (1 год назад)
can I have a lick on lead? will I die?
Oskar Skog (7 месяцев назад)
Yes, no. I have licked Sn60 Pb39 Cu1 with flux core and I'm still alive. I generally wash my hands after soldering and try not to contaminate my nearby coffee. I also don't eat solid metal, it hurts my teeth for some reason and it's also completely pointless.
Erik Warnes (1 год назад)
Not ALL gas stations, hank... Leaded fuel is still used in racing applications, and in aviation. I can get leaded gas at the pump in several places. Or I could, if I had anything that was exotic enough to require it. Like a racing car, or an airplane.
Jack Eggebrecht (1 год назад)
So, now I wonder how long it might take for gas stations to completely stop using the "Unleaded" designation because it becomes so redundant and obvious that no one even thinks of lead in gasoline anymore.
PokeMaster22222 (1 год назад)
It's sweet! It's an effective preservative! Paints containing it are superior to others! ...Why does it have to be so dangerous...?
Llamarama Dingdong (1 год назад)
So this is why older houses hold up so much better than new ones? They have that nice coating of lead keeping the elements at bay.
jlxsolutions (1 год назад)
alot planes still use Leaded fuel thou
AirsoftSlo (1 год назад)
If you use something leaded that land inside your mouth or *any other body part* your probably doing it wrong. Haha
Oskar Skog (7 месяцев назад)
"any other body part"? How do you solder? I usually use my hands.
nzoomed (1 год назад)
Aviation fuel still has lead in it.
๏ςՇ๏г๏к รยรђเ (1 год назад)
Wow so for 6 years of my life there was still leaded gasoline, that's kinda crazy. I always just assumed that was taken care of much earlier.
Albert Wesker (1 год назад)
Getting lead Roman Style
BPB W (1 год назад)
So that's why I used to love chewing my pencil in primary school!!! (kidding...)
Name Removed (1 год назад)
Lead paint is a great face paint for feminists.
nilamotk (1 год назад)
leaded fuel is still used in mall aviation
CornishCreamtea07 (1 год назад)
From the sounds of it the pros to lead passed paint, outway the cons.
Hollie Stanhope (1 год назад)
"If it ends up in your mouth, or your nose, or any of your face holes... You're probably doing it wrong."
JoJoZep ofthejungle (1 год назад)
oh man, you forgot led pencils that prep grade children earn stars to have the right to use
Addict With A Stylus (1 год назад)
dang.... now I wanna know exactly how sweet lead is.
Patrick Oliver Bustamante (1 год назад)
I heard rumors that some tattoo uses heavy metals like lead as ink, 😱
Programming Cafe (1 год назад)
Since I can't shove lead up any of my face holes... can I shove it up my ass?
Mr Ubanity (1 год назад)
Never thought that somebody would love whine more than me
огромная эрекция (1 год назад)
What about zinc poisoning....... ZINC POISONING!
NovaMan 350 (1 год назад)
You mean I shouldn't put lead in my coffee every morning?
Marcey Perez (1 год назад)
If Roman aristocrats drank lead spiked wine, no wonder they were so corrupt.
ay-ay ron (1 год назад)
i tried this and it tasted more like charcoal or sand
Dankest swag lord (1 год назад)
Lead is verry sweet I remember the "wall candy" or lead paint chips
Mustafa T. (1 год назад)
how can people survive if they get shot and the lead bullet doesnt get removed, or do they not survive and i just dont know about it?
Oskar Skog (7 месяцев назад)
Solid metallic lead is not very reactive and will take quite a long time to dissolve in your body. I wouldn't recommend leaving bullets in your body for unnecessarily long times however.
Zac Staude (1 год назад)
Am I the only one that immediately thought of a lead dildo when he said any of your face holes
Mark Angelot (1 год назад)
So what you're saying is that I shouldn't've eaten those 7 lbs. of lead last Wednesday? Oops,
ExMachina inap (1 год назад)
Who else ate paint chips as a kid?
Chris Everett (1 год назад)
Any of my face holes... so does that mean it can be used as a suppository.
Theface ofawsomeness (1 год назад)
I wonder if lead had a part in creating Caligula and Neros insanity.
dfghjk,mn jhgfgh (1 год назад)
is that why kids back in the day used to eat lead paint chips? because it is sweet? lol ok 👌
Vercusgames (1 год назад)
He didn't mention the dramatic increase in crime because of lead.
Way Child (1 год назад)
Lmao......."ANY of your faceholes"
Ausintune (1 год назад)
wait, what did I just hear
Missy Minx (1 год назад)
Maybe that explains why Caligula was such a bat-shit crazy mofo.
Rathernot Disclose (1 год назад)
Can it really be called "artificial" though?

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