We can all run a mile, at least one mile per hour. So if you run too fast, you can jump yourself into orbit and to escape velocity. Practically anything we throw as humans or kick would achieve escape velocity. All of these are 10,000 miles across around there. If comets and asteroids are these ones... There's not even Bruce Willis could help us. Exactly. This if they were what we're falling in a meteor shower, that's the end of all life on Earth.
How do bikes and motorcycles stay up? Neil deGrasse Tyson and co-hosts Chuck Nice and Gary O’Reilly explain how to kick a ball into orbit, what’s going on with cricket, and the physics of bicycles.
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Photo Credit: NASA/W. Liller, Public domain, via Wikimedia Commons
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