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From: periodicvideos
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  • I;m starting a Arizona Ice Tea Collection

  • The most fascinating man in the world

  • I see your videos for hours and hours, i cant stop,, greetings from Argentina: D

  • The U.S. had a ban on helium exports, so it had nothing to do with Germany using the airships politically. The Hindenburg was designed to use Helium already in 1930-31, but the U.S. kept the ban so hydrogen had to be used instead. Helium was very expensive, and even in the U.S. they had to conserve the gas and not waste any.

  • Tell a New Yorker that New Jersey and New York are pretty much the same! HAHAHAHA

  • @ijunkie hey i live at the jersey shore, i hope that wasn't a dis to jersey ;P

  • @ijunkie New Yorker here. I would definitely have been enraged if that came from an American lol

  • Okay I'm seriously freaked out right now. The guy at 0:02 looks and sounds like me.

  • I hope the Professor and the others can come "on tour" and appear at the cooper union in NYc. If he does let me know. I live nearby and will attend.

  • I bet it's oxygen, because the body splits di-oxygen for energy. And mono-oxygen can damage DNA and cause cancer (at least in theory). And else I would go for hydrogen, since it is a major part of water (where people drown in) and also of viruses and bacteria that cause diseases.

  • The element responsible for most deaths is probably Carbon, since diamonds are Carbon. However, Gold is a good idea too, espcially in more ancient times I think.

    No wait, my vote goes to Lead and Copper, since bullets are made of copper and/or Lead. Then again... Carbon is one of the ingredients of gun powder if I'm not mistaken.

  • why do you have your hairstyle like Einstein????????????

  • The most dangerous element is infact Fluorine. It is the most reactive element on the periodic table and bonds with anything. It's acids are so strong it can only be contained in teflon (did I spell that right) containers, which ironically, are made out of fluorine compounds too!

  • I thought the most dangerous would be plutonium uranium or neptunium

  • Couldn't we use magnets to make air more clean?

  • Very Informative A+++++++++

  • WTF?

    Nottingham is in the UK? but all these kids are speaking with an American accent.

  • These questions are from students in Rochester NY. The professor is simply answering some questions they had.

  • brady went to america idiot

  • That second kid at the start was so aggressive with his question.

  • Haha true.

  • i have a bottle collection

    but i only have an apple shaped one, and a flask shaped one.

  • I see you're already getting buffeted because of your choice of most dangerous. Obviously you were only thinking of the chemical properties.

    Check out some of the lethality stats on Plutonium. I seem to remember reading once that one GRAIN of Plutonium, atomized and distributed through the air of a large gymnasium, would have a near 100% lethality rate for anyone who walked through the room.

    I don't remember the source, so you can take it with a grain of SODIUM chloride.

    HAND

  • If all oxygen is magnetic, is there a higher concentration of oxygen arround a magnet than in the air? (higher than 21%)

    BTW the Hindenburg skin theory is that the top half of Hindenburg was painted with one layer of Iron oxide and Butyrate, with three layers of aluminium and butyrate. The bottom half had three layers of aluminium and butyrate. They believe, that aluminium and iron oxide mixed and caused a thermite reaction...

    MYTHBUSTERS PROOVED THEM WRONG!!!

  • @PeriodicElements What Mythbusters proved wrong is the myth that hydrogen had NOTHING TO DO with the explosion. But their second model (the one with the same coating as the Hindenburg) DID have small thermite reactions happening and accelerating the fire (although, NOT as explosive as their megadope model). At the end, they concluded that EVERYTHING was wrong with the Hindenburg: the lifting gas AND the coating. So: myth that the coating was the ONLY cause of the fire: BUSTED.

  • MOst dangerous huh...

    Francium, Uranium, Plutonium. I have to go with one of the radioactive elements.

  • Element that is the most evil..?

    difficult question....but i got to go with Carbon...

    carbon can be used to make weapons(steel)

    carbon dioxide,carbon monoxide (air pollution from burning compounds containing carbon like crude oil)

  • Carbon is the basis of all life...

  • who is to say that all life is not essentially evil. Think of all the greed and corruption in our societies

  • Another wonderful video. I don't think people can really grasp how this series has helped me overcome my fear of science subjects.

  • Amazig Videos ! I can see, the girl who asked about the plastic bootles has water name's ,,Poland Spring'' - I'am from Poland ;) Have you ever been in Poland ? If yes, i think in Gliwice because there is the biggest and the most modern Polytechnic in Poland - Politechnika Śląska. So ?

  • Poland Spring is named for Poland, Maine which is named for a Native American named Chief Poland!

  • ha ha so many of those kids have braces on.

    I think I went to see him at Nottingham Uni when I was at school many many years ago, he did a lot of exploive stuff.

  • The element which has caused most human deaths, easy that's oxygen. Without oxygen there is no life, without life there is no death.

  • I was going to tell you how you were wrong, but you're not.

    I have to agree with you on this one.

  • Thank you that was the most postive thing anyone has said to me in a long time. Oh no wait my wife said something positive to me a few months ago, but I can't remember what it was damn. Thanks ZeQiR!

  • Well i'd say Carbon. Carbon is used to make steel (used in weapons), Carbon is in oil, Organometallics (especially mercury and aresenic), in fact humans are made of mostly carbon, and humans have killed more humans than anything. Well, that would make nitrogen, sulfur, phosphorous, hydrogen, oxygen, chromium, iodine, selenium, zinc, sodium, potassium, chlorine, etc. dangerous (humans have these elements in them)

  • i think iron has caused the most deaths

    think of how long iron has been used to make blades, armor, etc.

    and its the main ingredient in steel, which is used in war machines around the world

  • solomsolomol racist?

  • How cute. Water bottle donations, haha. I guess the Professor can expect many packages in the mail now won't he?

  • "I don't know , filling a balloon with hydrogen and putting hundreds of people on it sounds like a bad idea! "

    "A bad idea ? what are you talking about ? we're germans , we don't have bad ideas , we have Eisenstein , just fill it and shoot it "

    And that's why the Hindenburg blew up , ladies and gents .

  • you did a bad research about that; actually there were only 97 people on board, 35 of them died in that accident.

  • 8:54 ..... a bottle of pocari sweat???? well, that's not really "water", is it?

  • I love that professor, he has such an interesting character. I love the chemistry focus, but if the videos were only about the professor's personal life it would be just as interesting.

  • I would say fluorine is the most dangerous element for sure. What DOESN'T it react with explosively?

  • I'd have to agree with you there - when something is so reactive that it forms simple compounds (2 elements) with the Noble Gases, you have a really dangerous element on your hands.

    Fluorine,and Oxygen (I think possibly Nitrogen as well) are the only elements that this will work with...not even sure if I'm right.

    I could be wrong. Probably am too.

    Still - I agree Fluorine is the most dangerous.

  • maybe u shoul start a world record for collecting water bottles in guiness

    =]

  • Sadly, it seems to be the case that the Fiji water that comes in the bottle the Professor has on his shelf is produced by an abusive regime... Google "Fiji water brutality"...

    Great video, nevertheless! You guys rock!

  • I guess that man made elements are false! The ones that are purely elemental by nature are true!

  • my best 2 element would be oxygen and hydrogen, without them how can we know the elements ?

  • yeah fracium is pretty nasty thanks for taking your time to make these videos

  • Francium has a half life of about 20 minutes and is one of the least abundant elements on Earth. Yes it'd be pretty dangerous, but the liklihood that you'll ever encounter more than a couple of atoms outside of a lab is so incredibly small that for all intents and purposes you could say it was harmless.

  • it is still radioactive though

  • Oh yea Francium or Plutonium they've definitely got my vote. By the way great video editing

  • @blinking801: Thanks - always like positive comments about the editing!!! ;)

  • I would vote for Plutonium being the most dangerous element. It is poisonous as hell and you can make a certain kind of device with it which can wipe out more than just pencil strikes on paper.

  • i <3 these videos

  • "i have dog toys but no dogs"

    LOL?

  • yes, lol

  • They're handy for talking about chemistry, however. Epic lol.

  • The world adores you professor. ^_^

  • Chuck Norris invent the elements with his Eyes. =P.

  • Some believe that the paint used to cover the Hindenburg was a mix that reacted together as thermite or was thermite. Mythbusters did this myth on one of their shows.

    My favorite element would have to be Cobalt.

  • The Professor is awesome. o.o-b

  • my favorite element is gold

    my worst element is radioactive stuff :(

    most dangerous element is gold

  • You may have a point there. I wouldn't be surprised if, statistically, more people have been killed due to gold than to any other element.

  • @ELuhn:

    The element that's caused the most human deaths?

    Morbid, but I'd be interested to hear other people's answers! Could be tackled from a few different angles?

  • Yes. Some could argue that anything beyond helium is bad news. :o> It would be hard to make a case for any element being completely harmless.

  • @periodicvideos YES, I'd say that gold is probably responsible for the most deaths out of any element....

  • @periodicvideos I am voting for carbon to be the element that caused, is associated or helped with the most deaths. I am thinking suicides in automobiles where they put a hose on the exhaust and lead the gasses into the car. Then Diamonds for 2 reasons. First the "blood diamond" mines where people work in the most inhumane environments and conditions to get them. And secondly burglaries, robberies etc where people try to gain diamonds from other people and in the process killing them.

  • @periodicvideos I would submit that the number of people killed over physical stuff (elements like gold, diamond, etc.) is relatively small compared to the number of people killed due to ideology - religion, politic, ethnic cleansing, etc.

    Since the key elements involved in the brain are salts of potassium, sodium and chlorine I think these are the front runners in your search.

    :-)

  • 1:38 , evil HP LaserJet 2015 printer. We use it at work and I miss the LCD screens of other models.

  • 7:07 Oh my god, professor is the greatest ever!

  • haha goodonya professor

  • he doesnt have that type of bottles? we in canada have them everywhere! i bet i dont have some that are in his collection

  • What an awesome message to derive from the Hindenburg explosion. Thanks Professor!

  • What is Francium?

  • Haha, well you'll just have to watch the Francium video won't you?

  • francium in the strongest alkali metal (in the category of caesium and sodium) which is also radioactive, but very little amounts have ever been synthesized, so not much has ever been done with this element

  • I find this Ironic Considering your name lol

  • I am thee most non scientific person you will ever meet but every time these vlogs come out I get so sucked into watching them...I love this channel.

  • The shelf collapsed? You should put some Hydrogen inside those bottles, to take some of the weight off the furniture. Wait, bad idea.

  • i guess it depends on if you thinking of dangerous as the most violently reactive, or the most dangerous radioactively, or the most dangerous to human health. i believe he's taking the most violently reactive.

  • Comment removed

  • Why? Just because it's radioactive? If it's dangerous radioactive isotopes you're worried about, Strontium-90 is far more worrisome than uranium (235 or 238).

  • Plutonium perhaps? They are allowed to use Uranium in their experiments at the university but not plutonium because its too dangerous.

  • Zeppelin Rules!

  • wow, long time since ive seen steve, when i think over it

  • Do you think you can list the whole bottle collection?

    I'm really surprised you had no Poland Springs...it's very common here in America.

  • So oxygen is magnetic, does that mean that a magnetized piece of iron will rust more quickly than one that is not? If not then why not?

  • That is an awesome question. :D Can't wait to see if you get an answer!

  • Thanks ATD nice of you to say that. I hope I get an answer to.

  • I've seen products claiming to prevent rusty cars because they repel oxygen using some kind of field. Bending a little science knowledge into a large scam?

  • That was a huge chunk of sodium!!

  • Earthed? I guess that's British for grounded.

  • It is.

  • @anothergazman

    So what are grounding rods be called in UK? I hope you know what I am talking about with the whole "...separated by a common language" problem.

  • If you're thinking what i'm thinking of its called an earth electrode (basicaly a rod in the ground), that said we dont use them these days due to their inconsistant nature. We earth/ground to the armour (of the supply cable) or the neutral return depending on what type of supply configuration leads to the building. Hope i'm not going on too much :)

  • Thanks anothergazman. That is what I meant and a pretty good name for the device. Thanks for the additional information.

  • You're welcome!

  • Comment removed

  • Yes it is.

  • The professor never fails to make me happy... what an extraordinary amaible man!

  • The 'experiments' with the alkali metals Li, Na, K, Rb Cs with water are most definitely don't try this at home.

  • Comment removed

  • obviously what kind of dog would hang around with all that banging going on :)

  • Nice

  • Wouldn't Francium be the most dangerous element?

  • Well, yes, but francium is, well.. not so abundant, and pretty much impossible for humans to use.

    You could just as well call the next element in the alkaline metal group the most dangerous element, you know?

  • I thought that Francium was the last element in the alkaline metal group. O:

  • Well, there's always a possibility for a bigger atom, only it might not be possible for us to produce, or present in our planet <.<

  • It is but its really rare, no ones ever made a large enough sample to do anything, plus its radioactive

  • If it could be made in any visible ammount, your'e right... There has only beeb isolated 10.000 atoms of Fr. A gold leaf is 500 atoms thick...

  • loved the vid

    awesome!

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