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21 Nov 2009
The GPS (Global Positioning System) is a constellation of twenty-four satellites (Plus two spares - making twenty six in total), in twelve-hour orbits at an altitude of 12,543 miles. Each satellite carries an atomic clock for precise determination of time, while ground-based tracking permits each one to know its position with similar accuracy.
The average lightbulb wastes 95 percent of the electricity it uses.
The first soluble "instant" coffee was invented by Japanese-American chemist Satori Kato of Chicago in 1901. The first mass-produced instant coffee wasn't until 1906 however, when George Constant Washington, an English chemist living in Guatemala created his brand called Red E Coffee, which was soon followed by dozens of others.
The first commercially manufactured camera was the Giroux daguerreotype. Alphonse Giroux et Cie. began manufacturing them on August 19, 1839, at Rue du Coq St. Honroe 7, Paris, France. It cost $50 and approximately 250 were built.
The cleanliness of the area used to make silicon chips is paramount for them to function correctly. Therefore the inside of the production area is some 10,000 times cleaner than an operating theatre..
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