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Everything within roughly a mile of the park is leveled, and a firestorm engulfs the surrounding city. The baseball diamond is now a sizable crater, centered a few hundred feet behind the former location of the backstop.
3) Isn't it quite likely that nothing since the Big Bang with that much mass has reached that speed before? I don't see how we can predict *what* will happen other than 'nothing good'.
Everything within roughly a mile of the park is leveled, and a firestorm engulfs the surrounding city.
Pretty certain that particles all the time, in masses heavier than a baseball are attaining the speed of light, or better than 90% of the speed of light.
Under the theory of relativity anything with mass can't ever reach light speed, and highest-energy massive particles that might approach anywhere near light speed have masses <<<<< the mass of a baseball.
A discussion of the reversal of the Earth’s spin—and what that even means—will have to wait for another article."
OK, but in relativistic terms, .9 c isn't really that close to c. The relativistic mass equation is M = m/(square root of 1-v^2/c^2). at .9c, M = m/.44. Since m =~145g, the mass of a baseball traveling at .9c is ~329g or about 11.5 oz.
A newly born neutron star
Astronomers have used the Subaru and Keck telescopes to discover gigantic filaments of galaxies stretching across 200 million light-years in space. These filaments, formed just 2 billion years after the Big Bang, are the largest structures ever discovered in the Universe. The filaments contain at least 30 huge concentrations of gas, each of which contains 10x the mass of the Milky Way.
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