Bewilderingly counterintuitive fact: the sun is so bright and hot only because it’s so big. It radiates the same amount of energy per cubic meter as a heap of compost. http://www.abc.net.au/science/articles/2012/04/17/3478276.htm …
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It's not inefficient, the Sun is mostly fuel waiting in queue for a relatively tiny reactor.
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Good point, although interestingly, for a class G star like our Sun, most of the core is & will be composed of the same material since the density of the radiative zone is so dense, there isn’t much particle movement toward the core.https://images.app.goo.gl/NVyd7BjE4FPGEZXA6 …
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It’s worth pointing out that compost won’t be still pumping out energy in 5 billion years.
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That, is unreasonably discomforting...
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