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> Sublight energy requirements, how much would it take for max sublight
Shifter
post Oct 4th 2009, 7:34 PM
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I was watching an episode where Carter says the Prometheus can travel at just over half the speed of light at max sublight. It got me thinking what sort of energy requirements it would take to achieve that speed for something with so much mass.

I think so far we have only achieved getting objects to go .05% the speed of light.

So lets just say the Prometheus weighs in at 100,000 tonnes. (would be more). What sort of energy would be required to accelerate that to 50% the speed of light. And how much would the mass be multiplied to?

I have a feeling the answer would be a very unrealistic energy requirement, ala "3 shots vaporize!" and I dont care how good Naquadria is. smile.gif
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KillerMarv
post Oct 4th 2009, 11:56 PM
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QUOTE(Shifter @ Oct 5th 2009, 3:34 AM) *

I have a feeling the answer would be a very unrealistic energy requirement, ala "3 shots vaporize!" and I dont care how good Naquadria is. smile.gif


It's science fiction. They invent stuff... Like, ummm, we need to have some guy time travel using a phone booth we like to call the TARDIS which is implausible but raises that "What if...?" question pretty high. Whatever the energy requirements, you should rather see the bigger picture. They say Naquada can provide the energy for a 50% sublight? Then it is so... They invented this substance, they can name its properties the way they want to. laugh.gif
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IndyJan
post Oct 5th 2009, 3:36 AM
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QUOTE(KillerMarv @ Oct 4th 2009, 11:56 PM) *

It's science fiction. They invent stuff... Like, ummm, we need to have some guy time travel using a phone booth we like to call the TARDIS which is implausible but raises that "What if...?" question pretty high. Whatever the energy requirements, you should rather see the bigger picture. They say Naquada can provide the energy for a 50% sublight? Then it is so... They invented this substance, they can name its properties the way they want to. laugh.gif


And I do so like my doctor of the TARDIS, wink.gif and yes KillerMarv is correct. Sometimes they may use actual science/math that is real. Other times, they will invent whatever they want and say it will do whatever they want it to do.
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Shifter
post Oct 5th 2009, 11:59 PM
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They also used the same substance in a bomb that was used on Jonas' world. While the energy output was supposed to be tremendous, it obviously didn't obliterate the entire planet. (much like a tainted ZPM would + most of the solar system).

I know its science fiction, but even the people behind the idea of '3 shots vaporize' regret it due to it being unrealistic (as well as a 'cheat') smile.gif

Just curious as to how much energy it really takes. And then to keep travelling at that speed over time. And all Jonas brought was a briefcase you could carry in one hand of the stuff, of which some was used on the interceptor that was destroyed along with the gate.



QUOTE(IndyJan @ Oct 5th 2009, 3:36 AM) *

And I do so like my doctor of the TARDIS, wink.gif and yes KillerMarv is correct. Sometimes they may use actual science/math that is real. Other times, they will invent whatever they want and say it will do whatever they want it to do.


This post has been edited by Shifter: Oct 6th 2009, 12:00 AM
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Dafmeister
post Oct 6th 2009, 6:05 PM
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Thats because a ZPM can provide a lot more energy though. As we've seen, a ship takes around two weeks to reach Pegasus in hyperspace whereas a ship powered by a ZPM can reach Pegasus in a few days.
There's no way to find out because even the writers don't know. The chances are that even if they did want to put in an episode, they would just pick a large random number out of the air.
You're better off not thinking of it and just accepting the number is big.
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d1craig
post Nov 9th 2009, 2:04 PM
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i dont think the weight of an item matters in space as its a vacuum and there will be no resistance.
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JTMAG1
post Nov 9th 2009, 2:35 PM
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QUOTE(d1craig @ Nov 9th 2009, 11:04 AM) *

i dont think the weight of an item matters in space as its a vacuum and there will be no resistance.

There are some forms of resistance in space, but there is not weight it doesn't matter, but mass does... 1.gif

The greater your mass, the more thrust it takes to move it, and slow it down.
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OdinisThor'sDad
post Dec 24th 2009, 10:15 AM
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QUOTE(d1craig @ Nov 10th 2009, 4:04 AM) *

i dont think the weight of an item matters in space as its a vacuum and there will be no resistance.


Newton and some other smart dead guys would disagree with you. So would I.
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Revan
post Dec 25th 2009, 12:58 AM
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QUOTE(OdinisThor'sDad @ Dec 24th 2009, 10:15 AM) *

Newton and some other smart dead guys would disagree with you. So would I.

Is that the thing where weight is dependent upon gravitation?

No that's not it... Oh I know. Weigh is a measurement of force, and since force is a mass multiplied by an acceleration, and gravity is an acceleration and people have mass.... Oh okay. I remember now.
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Shylodog
post Dec 26th 2009, 12:48 AM
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QUOTE(Revan @ Dec 24th 2009, 9:58 PM) *

Is that the thing where weight is dependent upon gravitation?

No that's not it... Oh I know. Weigh is a measurement of force, and since force is a mass multiplied by an acceleration, and gravity is an acceleration and people have mass.... Oh okay. I remember now.


Just always remember to initialize the inertial dampeners before jumping to Hyperspace, ok?

Nobody likes to clean the goo from the back walls. wink.gif
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Revan
post Dec 27th 2009, 3:06 AM
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QUOTE(Shylodog @ Dec 26th 2009, 12:48 AM) *

Just always remember to initialize the inertial dampeners before jumping to Hyperspace, ok?

Nobody likes to clean the goo from the back walls. wink.gif

Or to disable the external inertial dampeners before going to warp.
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Shylodog
post Dec 27th 2009, 4:33 PM
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QUOTE(Revan @ Dec 27th 2009, 12:06 AM) *

Or to disable the external inertial dampeners before going to warp.

Hee hee! I had forgotten about that scene! Too funny!
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sg1phantom
post Apr 7th 2010, 8:51 PM
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The purpose of the inertial dampeners is to effectively reduce the mass of the ship. Therefore, you're not accelerating as much mass and require less power.
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