00:00Don't blink, let me show you the power of science.
00:02An empty soda can can't stand on its side.
00:05But if you pour a quarter of a can of water into it,
00:07it can easily balance and stand on its side.
00:10This is due to the principle of torque balance.
00:12If you add milk to a bottle of Coke and let it sit overnight,
00:15the Coke turns clear and an unknown sediment forms.
00:18After seeing this, would you still dare to drink Coke and milk together?
00:22What do you do if you get chewing gum stuck to your pants and can't pull it off?
00:25Just put an ice cube on it and wait a bit.
00:27The gum will be easy to peel off.
00:29Add baking soda to a cup, then secretly pour in a little white vinegar.
00:33The mysterious gas that's created can put out two burning candles.
00:37This is the principle of carbon dioxide fire extinguishment.
00:40Wrap a few loops of cotton string around a glass bottle.
00:43Pour a little rubbing alcohol onto the string, then light it.
00:46After heating evenly, quickly dunk the bottle into ice water,
00:49and the bottle will split cleanly into two.
00:52This is the principle of thermal expansion and contraction.
00:55A glass cup shatters when you tap it,
00:57but if you tap it while it's in water, you can easily punch a hole in it.
01:00Why is that?
01:01Pour a little rubbing alcohol on some sand,
01:03then sprinkle a mixture of sugar and baking soda on top.
01:06Light it, and you'll see a black substance grow out of the sand.
01:09This is the famous pharaoh's serpent experiment.
