Nothing Can Travel Faster Than Light
Einstein’s Theories of Relativity inform us that light travels in a vacuum at a constant speed of 299,792,458 metres per sec, and nothing else in the universe moves faster than that. Since the Sun is 150 million km away from Earth, it takes 8 minutes and 20 seconds for sunlight to travel from the Sun to the Earth. Similarly, distant stars and other galactic lights take years to reach us; they represent ‘historical’ brightness, not current brightness. So, when a neutrino experiment to measure one of the fundamental particles that make up the universe indicated that they travelled to earth faster than the speed of light, it challenged one of the basic foundations of the law of physics. Further investigations followed and the OPERA team that derived that conclusion was proved wrong. This article is an interesting short review of physical laws.
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