Zhukovsky's bench and perpetual motion machine

Why look for a perpetual motion machine when there is an inexhaustible sea of energy around. For example, to put a windmill and with its help receive free wind energy, as the millers once did, threshing grain on absolutely free and free energy of wind and flowing water. Based on this, the question arises, can a physical body bring itself into rotation by internal forces? According to the laws of mechanics, this is impossible. But let's do a simple experiment that seems to prove the opposite. For this we need the so-called Zhukovsky's bench.

So, the first experience. We stand on the Zhukovsky's bench and try to unwind. Nothing will work out for us

So, the first experience. We stand on the Zhukovsky's bench and try to unwind. Nothing will work out for us. But try to make such an experience. Take your right hand to the side, it is better with some kind of weight and sharply move it to the left. The body will turn from left to right. Then carefully raise the same hand up, and, passing it through the top in the plane of the axis of rotation, lower it in the opposite direction. Then repeat the first movement again. Continuing to carry out these seemingly ridiculous exercises, we are steadily turning ourselves with our own internal forces in the same direction, clearly violating the laws of mechanics.

And the second experience, truly shocking at first sight. Place Zhukovsky's bench slightly slanted, for example, placing, for example, a plank under it on one side. The slope of the bench should be approximately 50. Then stand on this bench, and you will feel... that you are starting to spin! Yourself, without any help!

The Zhukovsky's bench made a stunning impression on various experimenters that the author even jokingly called this device "perpetual motion machine".

But what is the secret of Zhukovsky's bench? The fact is that, standing obliquely, a person instinctively tries to straighten up, to stand upright. At the same time, the pressure of the man's soles on the bench is shifted to its upper half (do not forget that Zhukovsky's bench is leaning!), And he, of course, turns. This Zhukovsky's bench, like an inclined scale, if one "feels" the overload of one "bowl" (half a bench), then immediately lowers it and raises an empty bowl. The person automatically tries to straighten up again and presses on the upper half again. And so on until the moment when Zhukovsky's bench throws him to the floor due to rapid rotation.

This is the principle of operation of this "perpetual motion machine". Now about the first experience. The author intentionally complicated it by making intricate movements with his hand, so that it was harder to guess. You can rotate like this: turn a hand with a load over your head. The body will then rotate in the opposite direction according to all the laws of mechanics. It is the "human face" that confuses everyone here. A "human face" turns - it means there is a rotation, and it seems that a person turns without the application of external forces. After all, a hand with a load of "face" does not have, so we don't consider its movement a rotation, but in vain... The most usual rotation around an axis. By the way, cats in the fall just keep their balance, falling on their paws. At the beginning of the fall, even with its back down, the cat automatically estimates where it is closer and more convenient to turn, and then it begins to quickly rotate its protruding tail in the opposite direction. The body, of course, turns into another...

But imagine that we still want to receive energy from a person. Not spinning on Zhukovsky's bench, of course, but, for example, turning the pedals associated with the generator. The average person, judging by the calorie content of the food they eat and the drinks they drink (by the way, even vodka is very high in calories!), Could slightly heat the apartment. But do not light, because this will require a power of 150-300 watts. And such power throughout the day is 6-8 hours and not every horse can pull it. Indeed, to determine the power standard, one of the strongest horses was driven to death with the development of power of 1 horsepower (736 W) for several hours.