Helical Engine space craft; a Representational Image; credit to Pixabay via Intl. Business Times Modern science has produced some miraculous advances in several fields. None of the ideas proposed or "invented" have ever seen any device that actually could produce energy out of nothing.
Of course, that idea, commonly referred to as a "Perpetual Motion machine" (PMM) and also known as a "Perpetuum mobile," cannot exist. The idea has been around for a thousand years or longer by now, but all attempts to build one have failed.
