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  1. ...'re usually painted yellowish in diagrams (guess why). http://en. wikipedia .org/wiki/Stellar_classification http://en. wikipedia .org/wiki/Main_sequence...

    7 Answers · Science & Mathematics · 16/12/2011

  2. They're not very efficient in their use of electrical energy. To send a craft anywhere meaningful would require too many batteries or a reactor with a lot of fuel. Either way the mass being moved is primarily the engine and not passengers or cargo.

    3 Answers · Science & Mathematics · 11/08/2006

  3. In the realm where anything is possible, yes, it is possible. But it is highly improbable. It would have been possible for the Russians to have launched a moon rocket without anyone outside knowing. Their launch complex was remote...

    6 Answers · Science & Mathematics · 29/02/2012

  4. Hard SF is cool but it's appeal is limited to the masses. It has zero appeal to a producer. They do not care what orbits what or why. They care about money and box office returns because it pays for the...

    2 Answers · Science & Mathematics · 08/05/2012

  5. ...the same distance 60 degrees from each other. This would produce the most Sci - Fi like sky with two large moons in the sky, but they would be 60 degrees...

    3 Answers · Science & Mathematics · 05/06/2010

  6. Nuclear explosions detonated behind the ship-- http://en. wikipedia .org/wiki/Project_Orion_(nuclear_propulsion) According to the...

    5 Answers · Science & Mathematics · 26/11/2008

  7. ...model for that body. For example Titan. http://en. wikipedia .org/wiki/Titan_(moon) <QUOTE...'s up to about 10 times as much. http://en. wikipedia .org/wiki/Triple_point#Table_of_triple_...

    6 Answers · Science & Mathematics · 24/07/2011

  8. ...". It's a nice series, and relatively "hard" sci - fi , too. :) Various ways have been proposed to deal with space debris: http://en. wikipedia .org/wiki/Space_debris#Dealing_with_debris The problem is...

    1 Answers · Science & Mathematics · 25/03/2010

  9. The Sun produces a "wind" of particles that moves outward towards interstellar space. This wind of particles produce a pressure against anything it encounters as it moves away from the Sun. The density and pressure...

    1 Answers · Science & Mathematics · 27/12/2009

  10. try wikipedia in the standard model (particle physics) most particles... uses antimatter to power the warp drive. In other Sci - Fi , antimatter is used in combination with normal matter to make...

    6 Answers · Science & Mathematics · 01/01/2013

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