送礼送什么烟比较好
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Results tagged with science-based
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user 50
百度 女性白细胞高是什么原因
For questions that require plausible (better than suspension-of-disbelief) answers based on Real World science that are not necessarily constrained to the known limits of Real World science. Contrast with the hard-science, science-fiction and internal-consistency tags. This tag may not be used alone. This tag may not be used with the science-fiction, hard-science, or internal-consistency tags.
31
votes
11
answers
5k
views
Long-abandoned, yet still working ancient technology
A staple of both fantasy and science fiction literature is the long-vanished Ancients, who left nothing but their buildings (or devices) behind. Somehow, these (usually) decrepit structures still wor …
- 3,831
14
votes
Is there any way to truly hide a spaceship?
ivy_lynx's answer is spot on - space is really, really big, and very easy to hide in, given some basic assumptions. I'll provide some numbers to demonstrate that:
The scales are huge
The largest as …
- 3,831
52
votes
Accepted
Is it physically possible for a planet to have seasons of different lengths?
Yes and no.
This NASA page has a good summary of why we have seasons (emphasis mine):
It is true that Earth’s orbit is not a perfect circle. It is a bit lop-sided. During part of the year, Earth is c …
- 3,831