Methane - Periodic Table of Videos

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14 жыл бұрын

We look at the molecule methane (CH4).
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Пікірлер: 336

@zarblitz 10 жыл бұрын

My chemistry teacher in high school did the same experiment but with a pumpkin. When it exploded, it was a jack o' lantern. He had carved it before class and put the pieces back in. It was pretty great.

@Garblegox 10 жыл бұрын

My teacher did this with a Pringles can. Only he didn't warn us of anything. He continued casually talking and putting it all together. Then at the right time, stepped a few feet to the left and BANG! It sounded like a gun going off. What was most shocking to me was how violently I ducked when it blew up. Never thought I'd react like that. I think that guy lived to scare the shit out of 9th graders.

@bullsquid42 10 жыл бұрын

I wonder how many people got into chemistry just to blow stuff up

@chuckydickens7258 9 жыл бұрын

My year 10 chemistry teacher always used to play with methane bubbles. Any time he got bored, he'd bubble methane through soapy water, break up the bubble cluster, and once the bubbles started to become buoyant, he'd stand at the far end of the room and flick lit matches at them. Good Times...

@sakelaine2953 9 жыл бұрын

Wind from the other end is hilarious!

@SomeRandomFellow 10 жыл бұрын

"You can belch it out or you can expel it out the other end." Cracked up so hard on that one!

@FlyingPiper13 11 жыл бұрын

2:43 SHE's INVINCIBLE!

@Enatbyte 12 жыл бұрын

Why couldn't my chemistry teacher be this awesome?

@MrBlaarghh 10 жыл бұрын

That was probably my favourite demonstration I've seen in one of your videos, so far. Really cool.

@drakesandate481 9 жыл бұрын

When i heard him say "incandescent flame". I thought of solaire of astora.

@Maxstate 14 жыл бұрын

That was great! Could you guys do a nice video about the difference between those strange suffixes like 'ethyls' ? That would be great.

@Illuminateur 9 жыл бұрын

That is an awesome molecular model of methane at 0:42

@sorrysonofa 14 жыл бұрын

THis video was GREAT!!! Love those new molecule videos.

@P00P0STER0US 14 жыл бұрын

I love these demonstrations.

@stardude692001 12 жыл бұрын

thank you, I hope to go over there some day and it's nice to have a leg up on the the language.

@pipsproductions15 14 жыл бұрын

I love the methane molecular mode. XD wonderfull vid again guys!

@Jason1975ism 12 жыл бұрын

I got the last part. the thing you forgot is that C14 dating technique measures when the creature stopped taking in C14, ie when it died. We also use associated materials to calculate the average C14 present at that time, usually plant material. charcoal gives scewed data because of the oxidation process. Calcined and Carbonized bones have the same issues. I have uncovered thermal features with bone comprising half the contents..once a human cranial fragment with cut marks..that was cool!

@darkdjo 14 жыл бұрын

Big flame in the hand ! Waoh ! Great video :)

@Jaskarsis 14 жыл бұрын

Nice video! Hello from Switzerland!

@beeble2003 11 жыл бұрын

In the UK, the mains gas supply is methane. From memory, Russia and Germany just spent a huge amount of money building a natural gas pipeline so it's probably the same in Germany. On the other hand, bottled gas is normally propane or butane.

@EzyoMusic 14 жыл бұрын

Haha, I love that can experiment! A teacher once did it right before my eyes and the can just hit the ceiling full-on. It was awesome, just like your videos! Keep it up.

@Legolaaa 14 жыл бұрын

Haha I love the can experiment, I've seen it with a much smaller can.. Pretty cool!!! I hope you make a good detailed video for Water... I think Water deserves something special! :)

@TheOneYouDespise343 11 жыл бұрын

I would love to do this in my Chemistriae class :D

@Jason1975ism 12 жыл бұрын

now that is a complete answer! thanx for responding! with no iron definition of organic I can imagine it gets very confusing. I wonder is any of the other 'carbons' could be a basis of life? somewhere I mean..

@Belicose777 8 жыл бұрын

That's awesome. Makes you appreciate the combustion engine even more.

@dumbo800 12 жыл бұрын

Last time I checked, Sir Humphrey Davy named the goddamned element as Aluminum. There is no reason to change it as it fits with the naming convention of other metals known at that time (contrasting the -ium metals also know) like Platinum, Tantalum, Molybdenum, etc Paperwork and ads for the primary Aluminum production method in the US used the -um spelling, thus ingraining that usage into the US lexicon. The UIPAC recognizes both spellings as proper, and equal numbers of publications use them.

@13someguy13 14 жыл бұрын

they actually put a minuscule amount of H2S (hydrogen sulfide) into hydrocarbon fuels in order to allow us to smell them (as hydrocarbons are normally odourless) in case of gas leaks. The human nose is particularly sensitive to the scent of H2S, so it is extremely easy to pick out the smell of hydrocarbon fuels such as methane

@yiyifone 14 жыл бұрын

Wow, nice one! Actually, I am currently start studying Organic Chemistry! Greetings from Hong Kon :)

@omeg666 11 жыл бұрын

Glorious HD

@SenatorPob 11 жыл бұрын

"Now me and Neil have doctored it slightly..." When Pete says something like that, you know it's time to get behind the blast shield.

@Stokie09123 11 жыл бұрын

I come from an area that relied upon the pottery industry for its income. When outsourcing of the pottery industry began in the late 80s, an entire generation of workers were left bereft of their trade, What are they to do? I was born after, this and was fortunate enough to be educated, go to university and get a good job in that I'm happy with, but the problem still remains for those that lost. The idea of leadership, is based wholly on a few, leading a many, so all can't be leaders.

@tripy666 13 жыл бұрын

you can belch it out or expell it as wind through the other end. im sorry but i laughed pretty damn hard when you said this, love this chemist, if only they could make copies of you to teach the world with your brilliant yet funny methods

@quietthomas 14 жыл бұрын

Perhaps the thermodynamics of the convection current caused by the flame pulling up from the inside of the pressure chamber might cause a greater retention of methane in the vessel than there would otherwise be had the flame not been there (sorry for the run-on sentence).

@MrLinux00001 11 жыл бұрын

The point at where the Fuel to air mixture ratio is explosive is called stoichiometry

@Playythis 11 жыл бұрын

In Canada here, we say Meth-Ane, but my professor who is a brit says mee-thane. I love it though :) he's awesome!

@Serostern 14 жыл бұрын

The professor said it. Decomposing materials on the bottom of a lake. Or in this case, the ocean, or just waaay down under ground.

@Drag0nfoxx 14 жыл бұрын

@petercourt - Because the amount of air and the amount of methane are perfect - they mix very well, and everything ignites at once, thus making it explode.

@Sentinalh 11 жыл бұрын

When it comes to methane and GW, the biggest issue right now is the massive amounts of it trapped in the Arctic permafrost. If that melts it will release a huge amount of methane into the atmosphere.

@NirrumTheMad 14 жыл бұрын

@SvenSign One does not criticize the English on the use of English. It is their language, and however they pronounce it is how it's supposed to be pronounced.

@douro20 14 жыл бұрын

Methane is the largest component of natural gas, but there are several other light hydrocarbons which are contained in natural gas, including propane and butane.

@utkarshsinghal5 12 жыл бұрын

thanks for the answer!

@Quintinohthree 11 жыл бұрын

It's actually arguably more complex, because one of its three electron pairs behaves differently from the others. In methane, all valence electrons behave exactly the same.

@thepvporg 12 жыл бұрын

What about inverting the can and lighting the other end to demonstrate the power of the explosive force? I remember at school when this experiment in to combustion was done. Still a good one today, 30 years on.

@GetMeThere1 14 жыл бұрын

OK. Exploding can trick: VERY cool ! btw, as an American I own and shoot guns of various sorts. I even occasionally reload my own ammo. A similar effect is possible with mis-loaded ammo: too LITTLE powder in a cartridge allows for DETONATION rather than BURNING. A gun be destroyed by firing a cartridge with too LITTLE gunpowder.

@AmenTeaspoonHunk 11 жыл бұрын

The ratio is called a stoichiometric ratio. Stoiciometry is the branch of chemistry that deals with those ratios.

@bb0ypants 14 жыл бұрын

@SvenSign its just the way things are pronounced in different places. like the way some things are spelled differently in America than they are in Canada.

@l4gotwhoiam 14 жыл бұрын

amazing!

@AdstarAPAD 10 жыл бұрын

So it would be feasible in large indoor farming facilities where they keep animals to seal the roof and extract methane out the top from the methane created by the animals.

@nipzie 12 жыл бұрын

Yeah, It'll be from contaminants. But it'll burn blue as a "working flame" when it gets complete combustion, ie oxygen in sufficient supply to get end products of H2O and CO2 from O2 + CH4. If there's a deficiency of O2 then the flame will burn yellow/orange with end products of CO (carbon monoxide) CO2 and H2O.

@HRHooChicken 14 жыл бұрын

Oooh this was uploaded on my birthday

@sketchesofpayne 11 жыл бұрын

I was hoping the can would take off like a rocket. >w< Still an awesome reaction.

@Rigo0Jancsi 14 жыл бұрын

@taofledermaus: Internalization of costs. Currently you drive an SUV and eat beef, and everbody has to pay for the results of climate change, e.g. people in Polynesia. When you tax those processes that create much CO2 or methane, then you allocate the costs to the originator and the real costs of something become visible. Not just 10.99 for a pound of beef but 20.99 for the beef and to share the costs of higher dikes in the Netherlands.

@cpovey1 12 жыл бұрын

In the States, we say it more like METH-ane, with the meth part sort-of rhyming with mess (as in mess hall, or you room is a mess). If you watch any US crime shows, like 'Law and Order', they talk about 'Meth labs', and the 'meth' parts are pronounced the same.

@masacatior 8 жыл бұрын

Methane is lighter than air.

@RFC3514 9 жыл бұрын

For some reason he always reminds me of Professor Denzil Dexter, from The Fast Show.

@eikegebr6011 11 жыл бұрын

At 1:30 it looks like the bunsen brenner wouldn't have any connection to a Methane source - They're burning air! :D

@AdstarAPAD 10 жыл бұрын

Does methane rise in the atmosphere? Is it lighter than air?

@superdau 14 жыл бұрын

@eirikstran: Don't know where you got that from. Methane is much lighter than air. 0,72 g/l vs. 1,29 g/l (at sea level, 0°C)

@alsmoviebarn 12 жыл бұрын

@gredangeo Depends where you're from. It's mee-thane in Britain, meth-ane in US and Canada, not sure about other places.

@paramount8000 14 жыл бұрын

To remember that the tap is open i guess. I would have forgotten about it myself, several times in school if it weren't for the smell. If you forget, accidents can happen.

@TheArabsolga 11 жыл бұрын

does methane gas go down or up when you release it in the atmosphere? example: helium goes up. does methane also go up?

@Quintinohthree 12 жыл бұрын

Quite improbable. They are all relatively simple and can't create much more complex compounds. However, it's not at all impossible or even improbable that out there somewhere there is life based on other biochemistries which still involve a lot of carbon, or based on other elements entirely like nitrogen or silicon.

@1RadicalOne 14 жыл бұрын

"It's particularly dramatic in cows, but it happens in you or me". Not me - I'm a carnivore. ;) Great video.

@ChaosDivides 11 жыл бұрын

My science teacher used to that, but he got told off for blowing a hole in the celing but it didnt stop him was a fun experment

@LTC3a 11 жыл бұрын

The female chemist in these videos really goes all out!!! She's awesome!

@tretronthedragon 11 жыл бұрын

it goes up in the air: methane is CH4, oxegenium is O2 and then you have CO2 methane weights 10 mol. O2 eights 16 mol and CO2 weights 22 mol. so methane goes up in the air because it lighter then most of the molecules in the air, but unlike helium it does not leave the earth.

@billymole958 11 жыл бұрын

Yes, it very much is.

@CyberPsyLen 11 жыл бұрын

very cool demonstration - explosion!

@l2804l 14 жыл бұрын

Time bomb o_O greatings from germany nice video

@Roddyoneeye 14 жыл бұрын

The blue tub reminds me too much of my (and my father's) gut! Now how did the methane get so deep under ground? Dramatic in cows? You Never Met My Dad !!! Would a fine wire mesh have prevented the heat from entering the can? Did I see the sides of the can contract just prior to the explosion?

@superdau 14 жыл бұрын

@culwin Yes, one to hold the drill bit, and the other to turn the can ;-)

@TemplarLucas 14 жыл бұрын

You realize that the reason they did it in the first place is that a fan sent it in as a suggestion, right?

@MikeoWar 13 жыл бұрын

Nice video :D

@darthRaduLego 14 жыл бұрын

Hello i am a big fan of your work. Me and a friend would be quite happy, if you would organise a summer camp. I'm sure that a lot of people will come.

@michel6 10 жыл бұрын

I didn't understand why the can blew up in the end, could anyone please explain? Thank you.

@FlashFizz 13 жыл бұрын

How about some videos about propane and butane?

@IchigoCandy1 11 жыл бұрын

and this is why hairspray + lighter flamethrowers are particularly dangerous, as once the fuel is in a more spread out and particulate manner, it will increase the reaction rate to an explosive amount, and boom, you have no hands.

@nipzie 12 жыл бұрын

Almost all, I "think" cyanide is not...and it's CN...but it's been a while. Someone can confirm or deny this. Carbon 14 is just an isotope of carbon that is used for dating since it decays at a known rate. A living organism will have a ration of carbon 14 that is consistent with levels known to be in existence now in a sample of carbon, so by calculating the known half life of that isotope for the ratio found in the archaeological sample gives an approximate timeline.

@Anonymouzor 14 жыл бұрын

that can experiment was cool :D

@bherkert 14 жыл бұрын

way to tease with it and keep it til the end!

@Rigo0Jancsi 14 жыл бұрын

@apollo. Sure, you're right. What was a fruad again?

@Nashy119 14 жыл бұрын

Americans tend to say the name of vowels as the letters themselves, rather than the sounds they make. I think the "ee" sound is actually just the saying of the letter 'E', like the sound of 'I' in vitamins.

@Cellogamer 14 жыл бұрын

When Pete first lit the can on fire I was totally like "Holy Crap! Methane flame thrower!" Then he took it off...

@Khellendros_ 14 жыл бұрын

Hahahaha. "Wind from the other end", professor's name for ordinary farts ^_^ btw, really cool experiment at the end, I wasn't expecting the blowing off of the top

@laserfloyd 11 жыл бұрын

So, now to do the can trick in super slow motion right? :)

@utkarshsinghal5 12 жыл бұрын

when the can exploded,the flame had many colors like red,green,and yellow.how can it be possible if the methane burns blue?is it that the explosion also burnt some of the metal with it?

@MaxTheDragon 11 жыл бұрын

For me it turned out to be a explosive mixture of methane and hair.

@Dazzle-Delight 14 жыл бұрын

brilliant! :)

@beeble2003 11 жыл бұрын

Cattle are much more dispensable than you think. You have to grow huge amounts of food to feed a cow and, in the US, a large proportion of that is soy or corn: it would be much more efficient to just feed that to humans. Granted, beef tastes way better than soy or corn... As for other species, well, by total weight of all individuals, cattle are probably the second-biggest species on the planet, after Antarctic krill. That's a big contribution to the total.

@princessmanner1 14 жыл бұрын

Nice!

@Rigo0Jancsi 14 жыл бұрын

@taoflattermann: Sorry that you took the "you" personally. It was meant generally, like "one". I don't understand what your comment about the things I have worked for has to do with the topic, only that I agree on useful measures to stop global warming to keep safe all the things I've worked for. But I hope, you understood the idea of internalized costs, which I was trying to explain.

@SeanLyttle 14 жыл бұрын

This is also very cool :D

@naominekomimi 11 жыл бұрын

Wow. What's with all of the hate on these videos? I seriously would've expected more mature fans...

@beeble2003 11 жыл бұрын

Actually, cattle farming produces over a third of human-caused methane emissions, which is a pretty significant contribution. Cattle are among the largest herbivores and, thanks to us, there are about 1.3 billion of them on the planet. Livestock farming causes a significant fraction of animal methane emission.

@beeble2003 11 жыл бұрын

I'm not talking about subsistence farmers but about people who grow crops such as coffee or cocoa to sell to the west when they have barely enough food for themselves. And if you want to reinstate the freer markets of the past, look up the Robber Baron industrialists first. Then, the recent results of deregulation ("freeing") the financial markets.

@ductape95 13 жыл бұрын

It's so much more fun if you have the lid on the bottom.

@theturbocow 13 жыл бұрын

@Vennificus There are a dizzying amount of regional accents in England. Despite the fact that one can sound completely different than another, are you saying ALL of them are the "correct" way to speak the language? What about certain dialects from the south of England where they pronounce "th" as "f." "Fink" rather than "think," "fought" rather than "thought." Does that sound correct to you?