One of the 5000-horsepower Niagara Falls units designed by Tesla Image added March 1, 2015 - 12:22 AM
Overview diagram of Tesla's Colorado Springs Experimental Station Image added March 1, 2015 - 12:22 AM
Artist's rendering of Tesla's Colorado Springs Experimental Station Image added March 1, 2015 - 12:22 AM
Diagram showing ultra-short waves penetrating the heaviside layer surrounding the earth Image added March 1, 2015 - 12:22 AM
Design of a vessel to be propelled by energy derived from temperature differences in the water Image added March 1, 2015 - 12:22 AM