OK, starting off with the temperature in space:
In general, temperature in space lies around minus 271 degrees celsius (don't ask me about Fahrenheit), which is a few degrees higher than the absolute zero (0 degrees Kelvin).
Now, since the sun radiates huge amounts of energy in all directions, any surface facing it will be heated up a lot, which is one reason why space travel is so difficult, not only must you be able to withstand vacuum and intense cold, you have to be able to take care of a lot of heat too.
That about heat in space.
Depending on what? Energy inserted?
You get an awful lot of waste from nuclear fission, first when mining the uranium, then during the production of the fuel (enrichment), then the byproducts from the actual fission, then finally the reactor itself, which after x number of years in large parts has become highly radioactve.
The first two problems are mostly problems in Russia and other countries "far away", where the mining and enrichment takes place, so most people wouldn't know about it. As for the others, we simply aren't there yet. Mostly, anyway.
Another possibility for a renewable energy source are wave-power plants. There are several possible ways to harness the energy created by waves, but I don't think it's being done anywhere on a very large scale, maybe because the technology hasn't existed for very long.
*points up* Kinda long for a first post, don't you think? Oh well, I got a little carried away...
In general, temperature in space lies around minus 271 degrees celsius (don't ask me about Fahrenheit), which is a few degrees higher than the absolute zero (0 degrees Kelvin).
Now, since the sun radiates huge amounts of energy in all directions, any surface facing it will be heated up a lot, which is one reason why space travel is so difficult, not only must you be able to withstand vacuum and intense cold, you have to be able to take care of a lot of heat too.
That about heat in space.
Originally posted by Cenright
You get an awful lot of waste from nuclear fission, first when mining the uranium, then during the production of the fuel (enrichment), then the byproducts from the actual fission, then finally the reactor itself, which after x number of years in large parts has become highly radioactve.
The first two problems are mostly problems in Russia and other countries "far away", where the mining and enrichment takes place, so most people wouldn't know about it. As for the others, we simply aren't there yet. Mostly, anyway.
Another possibility for a renewable energy source are wave-power plants. There are several possible ways to harness the energy created by waves, but I don't think it's being done anywhere on a very large scale, maybe because the technology hasn't existed for very long.
*points up* Kinda long for a first post, don't you think? Oh well, I got a little carried away...




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