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 Feb 16 awarded Popular Question Feb 2 comment What is the simplest way to prove the Earth is round? @ToddWilcox I don't fly airplanes, but I know they have instruments that tell you what coordinates you're following. And if flat-earthers were open to scientific demonstrations, there wouldn't be flat-earthers. The thing is that their answer is not derived by the available evidence, rather it's the opposite. Feb 2 comment What is the simplest way to prove the Earth is round? @ToddWilcox Yes, an airplane. Doing this method by walking would be very time consuming and be generally more complicated/difficult. Feb 2 comment What is the simplest way to prove the Earth is round? @ToddWilcox With a goniometer and a ruler? :D Seriously though, with tools. For example, a plane would tell you if you're going straight and how much you turned. Jan 29 awarded Yearling Dec 26 revised Triple-right triangle experiment: what's the minimum distance? adding link Jan 20 awarded Popular Question Dec 24 awarded Nice Answer Jul 27 awarded Necromancer Jun 14 comment If the sun stopped burning, would we ever know it? If the sun suddenly stopped burning (i.e. stopped emitting light), we would only know 8 minutes later. Jun 4 comment Starcraft II: Estimate how much air a viper would have to move to abduct an ultralisk Physics: bringing reality to games. :D May 2 revised If a neutrino has a rest frame, why can't a photon have a rest frame as well? Fixed formatting May 2 suggested approved edit on If a neutrino has a rest frame, why can't a photon have a rest frame as well? Apr 14 comment What is the simplest way to prove the Earth is round? @RedSirius I asked that very question some time ago. :) Apr 4 comment What is the simplest way to prove the Earth is round? @cHao Or you can use a hot-air balloon. :D Mar 19 accepted What is the importance of Joule's experiment? Mar 12 comment Can Somebody give me Questions Varun, Q&A sites usually focus on asking reasonably scoped and "finite" questions and, on this site, about Mainstream Physics and other subcategories. Your question is related to Physics but it's not really scoped or finite. Please check the On/off topic questions list to see what you can ask vs what you can't ask. Mar 8 revised Magnetic monopole fixed some parts Mar 8 suggested approved edit on Magnetic monopole Oct 9 revised $\gamma$ in Newton's Second Law of Motion in Differential Form Improved wording