For more than a century, gravity has been the immovable backdrop of modern physics, a force that can be described and ...

An engineer who once worked with NASA says he has built a machine that can push against gravity without burning a drop of ...

A 19-year-old Egyptian university student called Aisha Mustafa has invented a propulsion device intended to offer spacecrafts a new method and cheaper means of energy consumption. The propulsion ...

Refinement of the Mach Effect Propulsion using brass separation from the reaction mass has improved the thrust by about 65 times up to 60 millinewtons per kilowatt. This would be competitive with the ...