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Elon Musk on reusable heat shields and Mars reentry:
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Elon Musk on reusable heat shields and Mars reentry:
— No one has created a truly reusable orbital heat shield before
— Reentry involves extreme heat and pressure — very hard to withstand
— Only advanced ceramics and carbon-based materials can survive it
— SpaceX aims to make
btc
(
twitter.com)
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A mother dog delivered her babies or puppies a day before under the thick flowers in our front yard, and the several puppies laid there beneath. A day after, in the afternoon, a heavy rain poured out suddenly and the baby puppies got wet and shivering in cold, crying and whining.…
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A mother dog delivered her babies or puppies a day before under the thick flowers in our front yard, and the several puppies laid there beneath. A day after, in the afternoon, a heavy rain poured out suddenly and the baby puppies got wet and shivering in cold, crying and whining.…
有趣
(
twitter.com)
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