Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...
On Mars, the speed of sound depends on its pitch. All sound travels slower through Mars’ air compared with Earth’s. But the higher-pitched clacks of a laser zapping rocks travels slightly faster in ...
Helicopters have few ways to fight back against incoming fighter aircraft. Surprisingly, though, it is far harder to shoot down a helicopter from a plane than one might imagine. Fighters against ...
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