For more information about speed of sound check the Wikipedia article here
The now retired Concorde turbojets were the fastest civilian airliners in the world, capable of carrying passengers from Paris to New York in just 3.5 hours, traveling at supersonic speeds. However, lack of market appeal, combined with high maintenance costs, lead to its regrettable retirement from service with no civilian airliner to replace it, not even to [...]
Wed, Jul 6, 2011
At 300,000 kilometers/second, the speed of light is constant in vacuum, such as space, when it encounters a different medium, however, such as glass or water, its speed is reduced. Another phenomena that can occur in addition is that light can be dragged when it travels through a moving substance, and scientists at University of [...]
Some photos of the amazing sun halo hovering over NYC
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First mathematical proof that prime numbers come in infinite pairs
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Wed, Mar 21, 2012
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