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Do people dive into the deep sea, have their bodies been squashed?

Do people dive into the deep sea, have their bodies been squashed? Objects submerged in water are subjected to water pressure. This pressure is proportional...

Why do not cook cooked rice in the high mountains?

Why do not cook cooked rice in the high mountains? Geologists and mountaineers who work in the mountains often encounter awkward things like this: the...

Why do you have to swing your arms when you walk on steel wires?

Why do you have to swing your arms when you walk on steel wires? Walking on steel wires is one of the oldest circus acts....

Why can’t you jump, you can’t jump?

Why can't you jump, you can't jump? If someone asks you: Can you jump on your feet? Perhaps you could not answer immediately. So let's...

Why do not you tumble overturned?

Why do not you tumble doll overturned ? Everyone can see the phenomenon: the horizontal brick is very stable, erect it upright, easy to fall;...

Why must the water tower be built so high?

Why must the water tower be built so high? Unscrew the tap; tap water flushes the fence. Where does the tap water come from? Surely...

Why pen can ink flow out?

Why pen can ink flow out? When you use a pen to write letters on paper, the ink immediately appears. You must have wondered: why...

Why use straws to suck water Beverages ?

Why use straws to suck water Beverages ? When you use a straw for drinking soft drinks, you have a fleeting question: why does the mouth...

Why does the needle easily penetrate other objects?

Why does the needle easily penetrate other objects? Using the tip of the needle to penetrate the paper, the needle penetrated a small hole in...
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What is color television?

The human eye sees an object and can see its colors because the light it emits, or light from its surface, bounces off, enters...

What is an audio CD?

Edison's phonograph underwent constant innovation to become a popular electric phonograph. It is made up of the motor, the turntable, the receiver, and the...

What is the principle of the fire detector?

Fire harms human lives and property, damages the ecological environment. Fire prevention is a matter of concern to all humans. If it is possible...

What is the principle of the theft alarm?

In important places such as money, gold, silver, underground record storage, etc., if a fraudster suddenly sneaks in. the burglar alarm will immediately sound...