What are some of your brilliant ideas about scientific knowledge?

Please talk about your own whimsical ideas first, in order to throw jade bricks!

1. About you: 1, the earth is too crowded, make a high-speed very go to space to find a suitable "earth" for human survival - human beings are exploring, but it is a long process.

About your 2:2, the source of air pollution is exhaust pollution, invent a machine like this, inhale carbon dioxide here, and come out of gasoline, diesel, chemical products - plants, trees, etc. can have this function, plants inhale carbon dioxide, release oxygen - purify the air, about you 3:3, the earth is short of water resources, build a machine like this, here into the sewage, out is pure water, can not be used up.

This is the problem of desalination, and there is already this technology. It's just that the dosage is not too large, and the production cost is relatively high. Young people have all kinds of imaginations, which is good for you to become a person who can make a difference in the future.

My whimsical idea.

1. The earth is too crowded with people, so create a high-speed very far into space to find an "earth" suitable for human survival

2. The root cause of air pollution is exhaust gas pollution, and the invention of such a machine, where carbon dioxide is inhaled, gasoline, diesel, and chemical products come out.

3. There is a shortage of water resources on the earth, and if you build such a machine, sewage will enter here, and pure water will come out, and it will not be used up.

1There are countless levels on the earth, use the folded cloud in the bag to suck up all the stains! 2Sometimes use the washing machine to wash clothes, it is easy to wash the color into other colors, just need colorful spray, and your clothes will come back!

Summary. One. Why do puffer fish make themselves bigger?

This is because there is an air sac under the intestines of the puffer fish, which can become larger and smaller, and then expand to become a pouch-shaped. When a puffer fish is in danger, it makes the air sac bigger because it sucks in water or gas. Because the puffer fish is hard elsewhere** and has a soft belly, its belly can easily become globulous.

The practice of science is amazing, and you know what other interesting scientific phenomena to write them down.

One. Why do puffer fish make themselves bigger? This is because there is an air sac under the intestines of the puffer fish, which can become larger and smaller, and then expand to become a pouch-shaped.

When a puffer fish is in danger, it makes the air sac bigger because it sucks in water or gas. Because the puffer fish is hard elsewhere** and has a soft belly, its belly can easily become globulous.

Why don't the balloons deflat? Because the internal pressure of the balloon is much greater than the external pressure, for example: when the water is stopped, turn on the faucet, and the water will not go out; When the water comes, there is pressure in the water, so the water is also like the gas in the balloon, and it is in a hurry to go out, so the balloon is torn by the great pressure, and the sound is produced.

Tap water is not suitable for directly put into the goldfish pond to raise fish Reason: tap water is generally sterilized and disinfected with chlorine, and chlorine and other substances are not conducive to the growth of goldfish, so tap water is best packed in a basin and dried in the sun.

After one or two days, it is used to raise fish.

The reason for using plant ash to clean some cabinet utensils: plant ash contains a small amount of potassium carbonate, so the aqueous solution of plant ash is alkaline and has a certain decontamination effect.

Three mysterious phenomena discovered by scientists.