Steam engines use the heat of fossil-fuel like coal to boil water and create steam, the pressure of the expanding steam is use to turn engines like in locomotives.

The question is, is there a better liquid out there today, either natural or man-made, that when compared to water steam, using the same heat can produce [...]

Could this be our future reality? Or are we stuck with just sending out probes.

Leonardo da Vinci (1452-1519) inventor, engineer, architect, mathematician, geologist, and astronomer, he is most famous for his works of art like the Mona Lisa and the Last Supper.  Though best known as a painter, Leonardo primarily worked for the military, producing designs of airplanes, tanks and submarines, long before such war-machines were created. He is [...]

In this image, a Hele-Shaw cell formed from circular glass windows, oriented facing the camera, is illuminated by a white light source behind and to the right of the cell. Within the cell, the light is scattered by the ferrofluid particles in the high-field region near the poles of three magnets behind the cell. Blue [...]