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18 votes
13 answers
12k views

How do I store enormous amounts of mechanical energy?

Imagine a typical steampunk setting. Now, let's make two grand assumptions about it: Steam engines here are MUCH more efficient than those in our world. Yep, we have to violate laws of physics for ...
Elvagyodas's user avatar
3 votes
5 answers
499 views

What kind of rock could I use in my mountains?

in my world there is a mountain system where most of the rock is some kind of material or mineral that conducts heat very well. So much so that there is no snow on the peaks as it melts quite quickly ...
rperezz's user avatar
  • 39
3 votes
7 answers
1k views

What would the industrial age be like without oil and coal?

Consider a civilization with the industrial age technologies. Oil and coal are rare (probably used up). All products produced by oil and coal are also nonexistent. The civilization has invented ...
sorpaas's user avatar
  • 31