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Imagine a carbon fiber rod ejected sideways from a spacecraft (especially small satellites), controlled by electromagnetic coils or...
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Launch a lander carrying robots and rocket parts. The robot will assemble the rocket and use Martian resources to provide energy. It...
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是否有足够的能量为熔融岩石和高功率激光器供电？还是核燃料？
Mod Edit - Please post in English
Google Translation:
Is there enough energy to power molten rock and...
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A new perspective on Hubble's law through a four-dimensional spatial model: 4-Sphere-Cosmology
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