- News Home
10 April 2014 11:44 am ,
Vol. 344 ,
Balkan endemic kidney disease surfaced in the 1950s and for decades defied attempts to finger the cause. It occurred...
The Pyrenean ibex, an impressive mountain goat that lived in the central Pyrenees in Spain, went extinct in 2000. But a...
Tight budgets are forcing NASA to consider turning off one or more planetary science projects that have completed their...
Ebola is not a stranger to West Africa—an outbreak in the 1990s killed chimpanzees and sickened one researcher. But the...
In an as-yet-unpublished report, an international panel of geoscientists has concluded that a pair of deadly...
Tropical disease experts tried and failed before to eradicate yaws, a rare disfiguring disease of poor countries. Now,...
Since 2002, researchers have reported that agricultural communities in the hot and humid Pacific Coast of Central...
- 10 April 2014 11:44 am , Vol. 344 , #6180
- About Us
Engineering the Engine
10 June 1999 7:00 pm
Nikolaus Otto, the German engineer who invented the engine that still drives most modern automobiles, was born on this day
Otto built the first gasoline-powered internal combustion engine that used the four-stroke cycle--later named the Otto cycle--in 1876. Although French engineer Alphonse Beau de Rochas had patented the idea in 1862, Otto received the credit for being the first to put it to use in an engine.
In Otto's engine, the piston goes through four movements: intake of air and gasoline, compression, power (expansion), and exhaust. The first practical alternative to the steam engine, Otto's invention was an immediate success.
[Source: Britannica Online]