Questions tagged [energy]

Energy is the capacity of a physical system to perform work. Energy exists in several forms such as heat, kinetic or mechanical energy, etc.

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28 votes
5 answers

Why are the holodecks on Voyager in use if they have energy issues?

I'm watching the first two seasons of Voyager and various episodes have commentary on having energy limitations -- but we constantly see crew using extremely complicated holodeck simulations. Why ...
MrHen's user avatar
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86 votes
16 answers

In Star Trek why is warp speed the ultimate litmus test on "galactic acceptance" of a civilisation?

Why is warp speed and first contact seemingly the most important thing in the Star Trek universe for a civilisation to become "enlightened" and then utopic? For example, why couldn't the ...
SaltySub2's user avatar
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10 votes
2 answers

Identify a book featuring Free Energy given by an alien [duplicate]

I read this book back around 2002-2004 The protagonist is given the key to perpetual energy by a mysterious alien, all is well until he finds out the energy is actually slowing the earth's rotation. ...
Zack's user avatar
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32 votes
8 answers

How powerful is a ZPM (zero-point module)?

In Stargate SG-1 and Stargate Atlantis, an ancient race of humans* developed a technology called a ZPM (or Zed-PM for McKay fans out there). These zero-point modules were capable of immense power ...
Chad Levy's user avatar
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28 votes
3 answers

What fuel/resources are used to power engines in the Star Wars universe?

What kind of fuel or resources are used to power most engines in the Star Wars universe? They often reference engines as "reactors". Fusion, fission, something fantasy? Is there a waste product and if ...
Mufasa's user avatar
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15 votes
2 answers

How does a sarlacc gain any energy if it keeps victims alive for a thousand years?

When eaten by a sarlacc, according to C-3PO, In his belly, you will find a new definition of pain and suffering, as you are slowly digested over a thousand years. I imagine that keeping a victim ...
NeutronStar's user avatar
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24 votes
4 answers

How can a Stargate draw power from a black hole?

In "Beachhead" (SG-1 season 9), Col. Carter notes that the only thing in the Universe powerful enough to power an Ori Supergate is a black hole, and indeed the Ori manage to collapse an entire planet ...
Chad Levy's user avatar
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9 votes
2 answers

Nostalgia: City of Light?

I'm hoping to locate a short story in an old SF magazine (late 50s?). Earth has been colonized by extra-dimensional energy creatures with cities build out of pure energy. That energy pours out of ...
Walter Kraslawsky's user avatar