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Tagged with physics hard-sci-fi
4
questions
19
votes
1
answer
582
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Sci-fi story with the premise that spacetime geometry is Riemannian
I'm trying to find a hard sci-fi story where one of the major premises was that the world has a Riemannian geometry (x^2+y^2+z^2 + t^2) instead of the real world's Minkowski geometry (x^2+y^2+z^2 - t^...
0
votes
1
answer
1k
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Peter F. Hamilton Night's Dawn: Zero-Tau technology
I am in the process of reading the Night's Dawn trilogy by Hamilton. I think we can consider it hard sci-fi, since the explanations provided are quite plausible for all the technical and scientific ...
- 101
7
votes
1
answer
675
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Cosmic topology in Greg Egan's Orthogonal Universe
Eventually the people in the universe of Greg Egan's "Orthogonal" series figure out the topology of their cosmos.
But then they say the opposite, that
because of the presence of matter. So what ...
- 1,935
7
votes
1
answer
328
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How was the messaging system in The Arrows of Time (Orthogonal #3, by Greg Egan) supposed to work?
In particular, why didn't messages being relayed from the future use up bandwidth and prevent new messages from being sent back?
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