Recent content by Lockheed
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Does nuclear weapon can destory the moon?
Well, the force from the explosion was what I meant actually. But still, after the initial blast, the velocity will not change (we are in space after all). Since we are assuming the pieces will NOT fall back, you have said it yourself earlier: Since they already have an escape velocity higher...- Lockheed
- Post #16
- Forum: Astronomy and Astrophysics
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Does nuclear weapon can destory the moon?
Ok, I got the escape velocity wrong, but you also missed: Obviously blowing the moon is going to deliver a large enough force for it to accelerate, which means that many of the fragments are in principle powered objects. Escape velocity does not necessarily apply. If an object is already going...- Lockheed
- Post #14
- Forum: Astronomy and Astrophysics
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Graduate Speed of light - can it be exceeded?
I've also heard the expansion of the Universe being compared to expanding raisin bread in an oven. Personally, I think that is a better analogy then the balloon one, as one can avoid the "what is in the center" questions (which may not make any physical sense).- Lockheed
- Post #22
- Forum: Special and General Relativity
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Graduate Speed of light - can it be exceeded?
Yeah, but using equations is the easy part. It is quite possible to use them without understanding their meaning. It doesn't matter if you did them only 1 time or a million times. Yes, and that has already been addressed. What we are arguing now is over the reasons why the speed of light...- Lockheed
- Post #21
- Forum: Special and General Relativity
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Does nuclear weapon can destory the moon?
Well then the OP is going to have to be far more specific, because particles can have different sizes. I assumed the moon would be vaporized because that is typically what they calculate for when talking about destruction of any body, whether it be celestial or an Earth-bound object such as a...- Lockheed
- Post #12
- Forum: Astronomy and Astrophysics
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Graduate Absence of Jupiter: Accretion Effects & Impacts on Earth
I knew that, the reason for comparing the values was so that I could demonstrate the differences between the magnitudes of the forces acting on the bodies at certain distances.- Lockheed
- Post #18
- Forum: Astronomy and Astrophysics
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Does nuclear weapon can destory the moon?
that depends on how completely you destroy the moon. If it was vaporized (which is what I think the 30 trillion megatons is based on), then none of it will fall back to Earth. If you were to blow it up into fragments, which would take up far less explosives (but that's still so much more then we...- Lockheed
- Post #10
- Forum: Astronomy and Astrophysics
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Graduate Speed of light - can it be exceeded?
And thus you seem to prefer the appeal to authority fallacy, which is the wrong way of thinking... Whether or not any explanation or information comes from an expert is irrelevant. Unless a better explanation can be found, the one I gave you is the best one there is, and the one that most...- Lockheed
- Post #18
- Forum: Special and General Relativity
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Graduate Speed of light - can it be exceeded?
You are approaching it the wrong way. All of our equations and theories are based on experiment in that they describe what is happening, and the Lorentz Factor is no different. Just look at the equation and do the math yourself. Plug in the speed of light for "v". If you can't accept that...- Lockheed
- Post #16
- Forum: Special and General Relativity
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Graduate Absence of Jupiter: Accretion Effects & Impacts on Earth
You are wrong. If it was far away from Jupiter, then it's gravity would have negligible affect. But if it passed close by, then it could influence its orbit a great deal... You have to remember that the gravitational pull of the sun is very negligible at large distances, especially for an...- Lockheed
- Post #16
- Forum: Astronomy and Astrophysics
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Graduate Absence of Jupiter: Accretion Effects & Impacts on Earth
I don't think so. Gravity is much weaker due to the distance involved. Jupiter is not only the biggest planet in the solar system (about 1.5 times bigger than all the planets in the solar system combined),but the fact that it is close by compared to the others means that its orbit is smaller...- Lockheed
- Post #15
- Forum: Astronomy and Astrophysics
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Graduate Speed of light - can it be exceeded?
I know its a pretty bad term to use, but what I mean by "moving space (actually spacetime)" is, well, like making a fold in it or contract it or something like that to sort of "decrease" the distance the object or spacecraft has to travel. Basically, manipulating the geometry of spacetime...- Lockheed
- Post #14
- Forum: Special and General Relativity
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Intimate Relationships with Artificial Partners
There was some mention of sex between humans a robots in one of Asimov's books if I remember...- Lockheed
- Post #8
- Forum: Computing and Technology
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Finding Solace in Favourite Quotes: Escaping Despair with Words of Wisdom
Two things are infinite: the universe and human stupidity; and I'm not sure about the universe. -- Albert Einstein- Lockheed
- Post #398
- Forum: Fun, Photos and Games
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Can We Build an Ion Cannon in 5-10 Years?
Yeah, that's true. The ion cannon as depicted on that game is not really based on anything plausible. In many cases games like this usually use names that only serve as eye candy or the weapons are based on silly physics in order to balance things out to make the game more fun...- Lockheed
- Post #4
- Forum: Computing and Technology