The first hand-operated rotary egg beaters were invented just before the Civil War (but were not connected to slavery or ...

In the latter half of the 19th century, inventors experimented with various methods to power automobiles, including steam. But, along came a German man, Rudolf Diesel, who wanted a better way to ...

Over the course of the 19th century this primitive network of flapping ... who want in-depth accounts of the lives of scientist-inventors like Thomas Edison or Charles Wheatstone, detailed ...