There has been much debate about what is often called “free” energy—energy that can supposedly, with the right technology, be drawn straight out of the atmosphere, and in very abundant supply. The debates are about whether the stuff actually exists or not, what it would actually cost were it to be harnessed, and if it does exist is it truly as abundant and efficient as it's being made out to be by proponents of research and development into this potential alternative energy source.
When one hears the phrase “free energy device”, one might be hearing about one of several different concepts. This might mean a device for collecting and transmitting energy from some source that orthodox science does not recognize; a device which collects energy at absolutely no cost; or an example of the legendary perpetual motion machine. Needless to say, a perpetual motion machine—a machine which drives itself, forever, once turned on, therefore needing no energy input ever again and never running out of energy—is impossible.
However, it is not so simple to say that a new technology for harnessing the energy “floating” in the atmosphere is impossible. New technologies replace old ones all the time with abilities that had just been “impossible”. Harnessing the power of the atom for providing huge amounts of energy was “impossible” until the 1940s. Flying human beings were an “impossible” thing until the turn of the 20th century and the Wright Brothers' flight.
