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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
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The Codex Gigas, also known as the Devil's Bible, is the largest medieval manuscript in the world written in the 13th century.
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The Codex Gigas, also known as the Devil's Bible, is the largest medieval manuscript in the world written in the 13th century.
It is a medieval illuminated manuscript created at the Benedictine monastery of Podlažice in Bohemia, today a region of the present-day Czech Republic.
有趣
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