Taking “green” to a whole new level, a South Korean college student has designed a solar lamp that can be made entirely out of its own packaging. When fully folded, Sungrai Kim's ultra-inventive ...
Have we made an object that could travel at at least 1% the speed of light? – Anadi, age 14, Jammu and Kashmir, India Light is fast. In fact, it is the fastest thing that exists, and a law of the ...
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