These strangely-shaped twisted-loop propellers look like a revolutionary (sorry) advance for the aviation and marine sectors. Radically quieter than traditional propellers in both air and water, they're also showing some huge efficiency gains.

These strangely-shaped twisted-loop propellers look like a revolutionary (sorry) advance for the aviation and marine sectors. Radically quieter than traditional propellers in both air and water, they're also showing some huge efficiency gains.

"Hydrogen is life" some of you will understand this one day.

There are a number of interesting similarities between Viktor Schauberger and John W. Keely and their ideas of levitation, propulsion, energy development, as...