小天使
发表于 2025-3-21 20:06:35
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jumble
发表于 2025-3-21 20:50:56
re needed for efficient space travel, we encounter another problem: the force on our body due to the acceleration required to reach these higher speeds would quickly overcome us. The human body can only stand 2 or 3 g’s (g is the acceleration of gravity on Earth) over a long period of time.
entitle
发表于 2025-3-22 01:04:12
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持续
发表于 2025-3-22 05:10:45
Working-Class Writing and Experimentation field equations of general relativity was found. Indeed, a mystery developed that was not cleared up for over 40 years. It was, however, the final resolution of this mystery that now forms the basis of our hope for space travel.
FUSE
发表于 2025-3-22 09:10:56
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钻孔
发表于 2025-3-22 14:06:42
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钻孔
发表于 2025-3-22 19:23:55
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osteopath
发表于 2025-3-22 23:46:34
Faster Than Light?, astronauts in the spaceship don’t notice this slowing; to them time appears to pass normally. But if we use the slowed-down time seen by Earth observers to calculate the “effective speed” of the spaceship, we obtain numbers well in excess of the speed of light (usually called .).
中世纪
发表于 2025-3-23 05:24:59
Introduction,nce fiction writers have been speculating on such matters for years. But will it ever become reality? Scientists have recently been looking into this and what they have found has astounded them. Time travel may, indeed, be possible.
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发表于 2025-3-23 08:14:15
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