Energy

Conservation of energy and thermodynamics-- 19th century studies of energy and heat

The Electro-Magnetic Motor-- invented by Nikola Tesla

A Big Site on Tesla-- a strange and brilliant man...

The Diesel Engine-- invented by Rudolph Diesel

Alternating Current (AC)-- invented by Charles Steinmetz

The Gasoline Engine-- invented by Nicholas Otto

The Electric Light-- invented by Thomas Edison

The Florescent Light-- invented by Edmond Germer

Gasoline-- invented by William Burton

Transformers-- invented by William Stanley