Name: 5個瘋狂的科學特技，你在學校裡是看不到的。 (5 Crazy Science Stunts, You Won't See At School)
Uploaded: 2021-01-14T05:21:04.000Z
Duration: 5 min
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Grab your safety gear and sign the waiver, because we’re exploring 5 insane science

stunts you won’t be learning at school.

Normally we don’t think of metals as being very dangerous. We use them all the time,

but sodium metal is one that’s extremely reactive. The second it touches water, it

starts ripping the water molecules apart and releasing hydrogen gas, which you can see

is highly flammable, and in some cases, explosive. The vigorous reaction is exothermic, and gets

so hot, it’ll spontaneously burst into flames, and can explode. Now, if a piece of wood is thrown

on top, the elemental sodium blasts back with tremendous power, and sends the wood flying.

Now the reaction also forms sodium hydroxide, which is very caustic, and typically used

as a drain cleaner. But you might remember from a previous video, we can tame that dangerous

chemical with bacon grease, and make it into a custom bar of shower soap.

For this next experiment we need a plastic soda bottle filled a third of the way with

lukewarm water, and a little bit of liquid nitrogen. Now if we pour a bit of the cryogenic

fluid into the bottle and simply turn it upside down, the bottle blasts off with tremendous

force. Now we’ve got a high risk, hand-held rocket launcher. This works because the liquid

nitrogen floats on the water and the gas can escape out the top. But when the bottle is

turned over, the liquids trade places, and the nitrogen is instantly vaporized, blasting

water out the nozzle with incredible pressure. These bottles can shoot hundreds of feet at

high velocity, which apparently is enough power to break clean through my kitchen window.

There’s also a risk of these blowing up in your hand, so why don’t we move on to

the next experiment while we’re still in once piece.

Now one way to super-charge a halloween party is with a spellbinding blast-o-lantern. Just

pour a bit of calcium carbide into a small plastic cup, then carefully set it inside

a pre-carved pumpkin. When all the pieces of the pumpkin are back in place, simply pour

in a bit of water, and put the lid back on top. The pumpkin will slowly fill up with

highly flammable acetylene gas. So as you might be able to guess, we’re going to light

that off with a fuse. Now when the spark hits the gas, it blasts out, a sinister looking

face, with a startling amount of power. Your guests will probably find this trick extremely

amusing, because anytime you mix oxyacetylene gas with a pumpkin, it’s bound to get a

With some simple engineering, you can turn a junk microwave like this, into an electrical

metal melter, that will pump out a shocking 800 amps, of metal melting current. We just

need to break inside, to access the electronics, then locate this awesome piece of equipment

.. a 1500 watt microwave oven transformer. Now there are 2 coils on this beast. A primary

and a secondary, and if we cut off the secondary and replace it with 2 gauge insulated cable,

we’ve got ourselves an incredible device that will melt metal in just a few seconds.

When it gets turned on, it pumps out a staggering amount of electrical current, which you can

see is enough to reduce a machine screw, to a flowing river of molten metal. It’ll also

weld sheet metal, melt neodymium magnets, and heat steel until it’s glowing hot, just

in case you’re in the mood for a little amateur blacksmithing.

For this last experiment we’re making pie, but trust me, you don’t want to eat this

one. We’ll need to take this recipe outside and away from anything flammable, and get

started by mixing precise amounts of sugar and potassium nitrate. This is a highly flammable

mixture already, and the more we shake it, the faster it’s going to react when we light

it later on. Now if we warm this powder on medium-low heat, you can see the sugar begins

to caramelize and absorb the nitrate salts. When it’s all melted and mixed together,

it kind of looks like pumpkin pie filling, so why don’t we try pouring it into a pie

crust, and letting it set for a few minutes. If it weren’t for the fuse sticking out

of the center, you’d think it was just a regular pumpkin pie. But watch what happens

if we light it off. It bursts into a fountain of flames and spews hot ash like a miniature

volcano. This gives a whole new meaning to the term “Pie”-rotechnics, and this just

might be the first dessert, that burns it’s own calories.

Well there are 5 crazy science stunts you probably won’t see in the classroom, and

while I can’t recommend you actually try these experiments, you know what would happen

if you did. That’s it for now. If you liked these projects perhaps you’ll like some

of my others. Check them out at www.thekingofrandom.com

Hey guys, I hope you liked these demonstrations. They are some of my favorites, probably because

they’re a little bit dangerous, but that keeps it real. And if you felt the power and

learned something new, then why don’t you share this video on Facebook, and Twitter,

and reddit, because it really does help a lot.

Now there’s one thing I need you to do right now. Click on this video that Alltime10s just

released on their channel. It’s showing 10 Crazy Experiments that Scientists Did To

Themselves. This is a video you need to see, and if you don’t know who Alltime10s are

They do some of the best top 10’s videos on the internet. They have a super popular

YouTube channel, with almost 3,000,000 subscribers, and as you might have guessed, this video

is in collaboration with theirs. So go check them out, subscribe to them, and tell them

Now in the next couple of weeks I’m going to show you how to make miniature rockets

that will launch off your desktop, so subscribe right now, if you haven’t already, because

I’d really like to see you around in those project videos.

Are you still here? Go check out Alltime10s :)