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Fulmen
International Hazard
Posts: 1716
Registered: 24-9-2005
Member Is Offline
Mood: Bored
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All hogwash, nonsense and bullshit. I suggest spending your time on something that has the faintest hope of working.
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deltaH
Dangerous source of unreferenced speculation
Posts: 1663
Registered: 30-9-2013
Location: South Africa
Member Is Offline
Mood: Heavily protonated
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ElizabethGreene, what did you mean by this:
"* (What is the diameter of a round 'tuit?)"
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ElizabethGreene
Hazard to Others
Posts: 141
Registered: 15-10-2012
Member Is Offline
Mood: No Mood
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This is a play on words. Where I live, it is common to say "I will finish it when I get around to it." Over time, the list of tasks waiting for
someone to get around to it grows linearly. Some choose to make fun of this phenomenon by manufacturing these objects as a motivator to complete tasks.
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deltaH
Dangerous source of unreferenced speculation
Posts: 1663
Registered: 30-9-2013
Location: South Africa
Member Is Offline
Mood: Heavily protonated
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Excellent, I want one!
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phlogiston
International Hazard
Posts: 1379
Registered: 26-4-2008
Location: Neon Thorium Erbium Lanthanum Neodymium Sulphur
Member Is Offline
Mood: pyrophoric
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Energy is mass. There is no clear difference. Any form of energy has a mass associated with it according to E=mc<sup>2</sup>.
A charged battery has a slightly higher mass than an empty one.
A ball on the ground has a slightly higher mass than one up in the air.
A flying bird has a slightly higher mass than one sitting in a tree.
Matter (ie. particles with an intrinsic mass/invariant mass/rest mass) is a very concentrated form of energy, which 'explains' why it is so much
better at generating force, but there is no fundamental difference.
Expelling an equivalent flux of photons or any other force-carrying particle from the back of a rocket will generate exactly the same force as when
you expel electrons, rocks or exhaust gasses.
There is no mystery there.
Your question as to "why or more specifically, by what 'mechanism' does force causes masses to accelerate" is very interesting but frankly impossible
to answer.
Firstly, watch this video, in which Feynman talks about the problem with a 'why' question like this.
Secondly, every existing theory is descriptive and will not tell you 'why'. They will allow you to calculate the outcome of an experiment, but no
existing theory will explain how 'force' or 'acceleration' or 'matter' are encoded by the universe at the most fundamental level.
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"If a rocket goes up, who cares where it comes down, that's not my concern said Wernher von Braun" - Tom Lehrer |
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deltaH
Dangerous source of unreferenced speculation
Posts: 1663
Registered: 30-9-2013
Location: South Africa
Member Is Offline
Mood: Heavily protonated
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Thanks Phlogiston, I share your thoughts on this.
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