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03-06-09, 01:32 PM | #21 | |
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Re: how loud is 105db?
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1 bike, say 60dB add a second bike which makes an identical noise - you've now got 2 bikes at 60dB each, so you've doubled the sound intensity - thats now 63dB, as 3dB represents "twice as loud". (I always thought it was 6dB but that could be something else - its been a few years since i was at college). Add another 2 identically sounding bikes, you've doubled it again - so 66dB. Now these bikes would not normally be making identical noises in sync with one another. Sound is a wave - 2 identical waves in phase would produce double the sound intensity, but entirely out-of-phase would produce silence. So in fact with 4 bikes all producing 60dB - you're probably not gonna get to much more than 61dB there.
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03-06-09, 01:44 PM | #22 | |
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Re: how loud is 105db?
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03-06-09, 01:47 PM | #23 |
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Re: how loud is 105db?
Their heads would have exploded. I think people's ears probably did pop, in fact.
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