Zero was invented in India by Indian mathematicians dating as early as 5th century. They widely used it in calculations, astronomy and astrology. Zero was spread by Arabians to the Europe and there on it was spread all over. Before this, all Europeans used roman numerical which were difficult to calculate on as they were in the form of Symbols, lengthy and had limits. New Math Multiplication Method
Printer manufacturers print invisible yellow dots on consumer\'s prints that check to see if a person is printing counterfeit money. If you call your printer manufacturer and ask them to \"please stop spying on you\", they will send secret services to your address to find out why you care about your privacy. Upset? You should be. The more people who call their printer\'s manufacturers and make this request, the more likely secret services will refuse to investigate.
Probably the most popular car in the world, Beetle had fascinating past. It was proposed by Adolf Hitler to make peoples car that can fit 5 people and deliver speed of 100km/h (62mph) later known as \"Volks-Wagen\" (\"People\'s Car\"). Beetle was designed by Ferdinand Porsche founder of automotive design company, which became known as the Porsche Büro. Ferdinand also designed German tanks, Tiger I and Tiger II. The first Porsche ever build was Porsche 356 created by Ferry Porsche son of Ferdinand Porsche. Porsche currently owns 31% of the Volkswagen car company.
Company in Brazil (Suite Vollard) constructed a building in which each floor can rotate 360 degrees. Each building has 11 apartments and each apartment can spin individually in any direction. One rotation takes a full hour, but apartment owner can set rotation speed through apartment control panel. Facades are made of three different types of glass which give wonderful effects when building spins during the sunset. Cost of each apartment is $US 300,000.00.
Cars today put out a lot of pollution, and use up fossil fuels. Predictions are that hydrogen cars with combination of solar and electricity source, are the future of transportation. Device that is the size of microwave oven may be all you need to fuel your car in the future. Using small device, hydrogen can be easily and cleanly extracted from water and power family car for up to 150 kilometers.
The East Japan Railway Company (JR-East), as part of research aimed at developing more environmentally friendly train stations, is testing an experimental system that produces electricity as people pass through ticket gates.
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