What is the liquid of the Perpetual Bird Suit, the influence of the Perpetual Bird

The "perpetual moving bird" is equipped with ether, which uses ether evaporation to absorb heat to change the air pressure in the head or abdomen, so that the center of gravity of the bird changes and moves. Not a lie. The landlord physics is good, but don't forget that rest (there is no absolute rest) or movement is a state of equilibrium, and the perpetual bird also needs external forces when it starts.

In August 2005, "Perpetual Bird" was exhibited in the 8th "China Classical Physics Toy Expo" sponsored by the China Toy Association, which immediately caused a huge sensation and attracted many reports, including **TV station. Wang Kun, who was born in a poor family, realized that his power was limited after all, and only by allowing more people to participate in it could he create more wealth, and it was also a great good thing to be able to help people who were eager to start a business and get rich like himself. Now, Wang Kun has decided to recruit franchise dealers from all over the country, so that this little bird can bring more people a happy life and wealth.

Overview** ).

What Wang Kunshan! Was he resurrected? Anyway, I already saw it during the Great Leap Forward, and the shape is much more beautiful, which is as ugly as his. And the form is realistic, it's really like a duck sticking out its neck to drink, like he is just swinging.

During the Great Leap Forward, we saw in a shop on Wuyuan Road in Shanghai that every time we passed here, we had to be displaced, and it was only a few yuan at that time. Moreover, it was also introduced in the popular science books at that time, and the paintings in the popular science books were not as good as what we actually saw, but they were much more realistic than Wang Kunshan's "resurrection". Such books may still be available in libraries today.

It has never been lost.

Why is it said that it has been lost now? also wants Wang Kunshan to be resurrected.

At that time, we commonly known as the duck drinking water, and the official name in the book was the mythical duck.

, "Perpetual Bird" is a kind of toy handed down from ancient times in China. The body of the bird is made of a length of glass, sealed in a glass tube, which is a chemical called ether, which is highly volatile. When the ether in the bird's head encounters cold water, it can absorb the heat in the surrounding air, and the ether is converted between gas and liquid, resulting in the instability of the center of gravity of the entire glass tube.

On rainy days, the birds drink water slowly, and when there is wind on a sunny day, the temperature difference is large, and the birds move faster. "Actually, this still follows the law of conservation of energy, but it is difficult to observe with the naked eye."

lz, there is no such thing as perpetual motion in this world, because everything must be conserved in energy.

All the air is removed with water vapor, sealed, cooled and turned into water, and the container is vacuumed (although absolute vacuum is impossible) It is all glass of course burned, which can allow the molecules to be connected.

Perpetual bird in ancient China as a toy, spread very widely, and then gradually lost, the last clearly recorded appearance was in the 30s of the last century in a foreign popular science book, and then disappeared.

First of all, as mentioned above, if friction and resistance are not eliminated, internal energy (heat) will be generated by the movement, and the amplitude of the motion will gradually decrease and finally tend to be immobile.

The theorem of conservation of energy, in an ideal state without resistance, itself proves the existence of perpetual motion.

Secondly, this kind of perpetual motion machine cannot export energy to the outside world, what is the significance?

You just need to follow the law of conservation of energy and you can do it, first of all you can't find an object without friction, so in motion the kinetic energy will be converted into the internal energy of the object, causing the mechanical energy of your whole object to decrease, so it is impossible. What you see is nothing more than a short-term Yongdong.

The concept of a perpetual motion machine is a thing of the past.

Yes, it can be achieved, but not yet.