Classroom social distancing greetings 6ft poster

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In the summer of 2005, the scientific journal Nature said, the research group of scientist Lijun Wang, NEC Research Institute, Princeton (USA) was directed a pulse of light through a tank filled with cesium at a speed of nearly 300,000 km / seconds. Classroom social distancing greetings 6ft poster. Experiments show that the conventional notion that nothing can travel faster than the speed of light is wrong,” Wang said. The ability to send signals faster than light can help solve the two most mysterious problems: alien contact and time travel.

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