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Q&A

Posts tagged lasers

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Rigorous Science Requirements for melting snow from orbit using EM radiation

My (your) goal is to melt several tons of snow and ice in a small area using electromagnetic radiation beamed down from a spacecraft in orbit. The atmosphere that's in the way is vaguely Earth-like...

4 answers  ·  posted 4y ago by ApproachingDarknessFish‭  ·  last activity 4y ago by ApproachingDarknessFish‭

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Q&A Stellaser Part I: Trial by stellar Fire or The best design out of three for a solar powered 5 Petawatt laser?

I´m building a hard-sifi setting and want to use Stellasers (abbreviation for stellar laser) to provide thrust and power to interstellar vessels. This part one is only concerned with the construct...

2 answers  ·  posted 5y ago by TheDyingOfLight‭  ·  last activity 5y ago by TheDyingOfLight‭

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Rigorous Science Could you liquefy an asteroid to collect its resources?

Suppose you could pump a load of energy into an asteroid at a safe distance. As energy gets added to the object, does it make sense that this could be done in a way to get the asteroid to different...

3 answers  ·  posted 5y ago by Chris W‭  ·  last activity 5y ago by Chris W‭

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Rigorous Science What is a reasonable energy solution for a proposed solar system wide Laser Propulsion array?

In my fiction I'm setting up a civilization which uses Laser Propulsion for moving things between bodies within a solar system (assume Earth/sun analogy). Laser Units have been set up anchored to a...

2 answers  ·  posted 5y ago by Chris W‭  ·  last activity 5y ago by Chris W‭

Question space-travel lasers
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Q&A Can liquid nuclear fuel be injected and ignited like petro from a fuel injector?

[![enter image description here][5]][5] Model Lightcraft under laser power While sadly the funding for this research has not been forthcoming, there have been proof of principle flights and ope...

1 answer  ·  posted 6y ago by Muze the good Troll.‭  ·  last activity 6y ago by Muze the good Troll.‭

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Q&A By what mechanism can lasers destroy an entire planet?

What circumstances must be met in order to destroy a planet with just a single laser beam hit? If this is possible at all then, please, try to provide some possible details: an approximate energ...

5 answers  ·  posted 6y ago by trejder‭  ·  last activity 6y ago by trejder‭

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Q&A Can I overcome the bandwidth limitation on my photonic railways?

The Humern Empire is a vast, well established empire that spans the galaxy. Despite having no FTL travel they have kept their empire together with a series of subluminal transport methods. Heavy c...

8 answers  ·  posted 6y ago by Joe Bloggs‭  ·  last activity 6y ago by Joe Bloggs‭

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Q&A What happens to asteroids when heated into a plasma?

I'm looking to build a scientifically plausible mining laser for my science fiction setting. The first approach that came to mind was a high-power laser that heats the surface asteroid until it bec...

2 answers  ·  posted 6y ago by Arvex‭  ·  last activity 6y ago by Arvex‭

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Q&A Gravitational lenses for focusing giant lasers

There is an interstellar civilization somewhere between K2 and K3 and they have managed to build a dozen Nicoll-Dyson beams. These are megastructures which collect the entire power of a star, and p...

3 answers  ·  posted 7y ago by b.Lorenz‭  ·  last activity 7y ago by b.Lorenz‭