Top network posts

• 93 Why do same/opposite electric charges repel/attract each other, respectively?
• 77 Is it really possible to break the speed of light by flicking your wrist with a laser pointer?
• 68 Does someone falling into a black hole see the end of the universe?
• 49 How can you weigh your own head in an accurate way?
• 29 Why are expressions such as $\operatorname{ln}T$ used in thermodynamics where $T$ is not dimensionless?
• 26 What would be the effects if Jupiter was to blow up?
• 24 How can neutrinos "beat light"?
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