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Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
- 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]