Eternal engines. Perelman Ya.I.

For many centuries, the inventors tried to create an eternal engine. The first “official” attempt was made back in the VIII century AD, and some today are trying to come up with a mechanism that could always work without external influence. You can even confidently say that a person will forever invent an eternal engine, so we are arranged! In his book, the famous physicist and popularizer of science Yakov Isidorovich Perelman will tell you what types of eternal machines have already tried to create in the past and why these attempts were unsuccessful.

for a wide range of inventors!