Home > Off Topic > So who knows the answer …. |
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JOKER Member Since: 11 Sep 2008 Location: Sconnie Botland Posts: 15876 |
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5th Mar 2012 2:41pm |
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Joe90 Member Since: 29 Apr 2010 Location: Hampshire Posts: 6407 |
That is just weird and spooky .
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5th Mar 2012 3:06pm |
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wackyjim Member Since: 11 Aug 2010 Location: Brigadoon Posts: 2014 |
One for James May I think!!! |
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5th Mar 2012 6:19pm |
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Contraband Member Since: 08 Nov 2010 Location: FIFE Posts: 3697 |
Momentum.. The weight on the arm of the metronome would have to be in the same place for all five. By placing them on the plank with the bearings underneath, they would share a common movement, the back and forth rocking of the shared common base would transfer the movement to each metronome equally, thus synchronising the movements of the arms..... I think. Previously..
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5th Mar 2012 6:29pm |
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wackyjim Member Since: 11 Aug 2010 Location: Brigadoon Posts: 2014 |
^ I was just about to say that!! |
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5th Mar 2012 6:31pm |
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JOKER Member Since: 11 Sep 2008 Location: Sconnie Botland Posts: 15876 |
You just stole my answer Contra , thought it would have taken longer than that for a reply ... |
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5th Mar 2012 7:13pm |
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Contraband Member Since: 08 Nov 2010 Location: FIFE Posts: 3697 |
a nice little teatime puzzler to get the cogs working.. Never seen that done before, great wee video.. Previously..
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5th Mar 2012 7:27pm |
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Reformed Member Since: 09 Oct 2010 Location: South Posts: 471 |
I own 5 But then I do also own a music studio Reformed |
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5th Mar 2012 7:56pm |
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tomthevet Member Since: 14 Jan 2012 Location: Scotland Posts: 283 |
Resonant frequency is achieved as they share the same base.....kind of! Or do they?! Oooooh.
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5th Mar 2012 8:08pm |
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Stephen.125 Member Since: 25 Jun 2009 Location: Frodsham Posts: 1511 |
Correct!
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5th Mar 2012 9:15pm |
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mzplcg Member Since: 26 May 2010 Location: Warwickshire. England. The Commonwealth. Posts: 4029 |
I'm not sure it would though CB. Would it not be the case that the common platform (the plank on bearings) would artificially force all of the metronomes to a common average regardless of the weight placement ??? I'm thinking about the "equal and opposite reaction" stuff from my physics days. If one metronome was set to a specific frequency and placed on that plank, would it not induce half the energy into the plank and make it resonate at the same frequency on its bearings in an equal and opposite kind of way? If the answer to my question is yes, then adding a second metronome with a different frequency would produce an overall oscillation frequency equivalent to the mean average of the 2, yes? EDIT. Yes, the thing which alters the timing of the pendulums is the movement of the pivot point. If the pivot point moves in the same direction as the weight then it will take longer for the weight to reach the tipping point which has the effect of artificially altering the speed of the pendulum arm, thus forcing the beats per minute to an abnormal figure. I think. |
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5th Mar 2012 10:22pm |
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AMD Member Since: 16 Jul 2010 Location: The South Posts: 811 |
Here you go... http://www.learner.org/courses/mathillumin...ook/07.php Current MY2020
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5th Mar 2012 10:28pm |
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Contraband Member Since: 08 Nov 2010 Location: FIFE Posts: 3697 |
I think the arms would have to be of equal length to obtain synchronicity. They would have varying inertias otherwise. Imagine if they were the other way round, pendulums. If they were different lengths you would not obtain a common shwiiiiiiiiing..... Previously..
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5th Mar 2012 10:33pm |
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pretlove Member Since: 10 Feb 2011 Location: Bas vegas Posts: 1865 |
Because they just do
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6th Mar 2012 12:15am |
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