Re:Unmasking Northrop Grumman's XRQ-72A
by londons_explore on Wednesday April 01, 2020 @03:06AM
(#22746417)
An owl still emits more acoustic energy per kilo-mile than a passenger jet.
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That's just a variant of the square-cube law. An owl the size of a passenger jet wouldn't.
Re:Unmasking Northrop Grumman's XRQ-72A
by nicoburns on Wednesday April 01, 2020 @07:47AM
(#22747710)
Let's all just be thankful that there are no owls the size of passenger jets.
Re:Unmasking Northrop Grumman's XRQ-72A
by Piskvorrr on Thursday April 02, 2020 @05:58AM
(#22757521)
That's, again, the same law. It would break under its own weight.
Re:Unmasking Northrop Grumman's XRQ-72A
by ntsplnkv2 on Wednesday April 01, 2020 @10:44AM
(#22749089)
Can you explain this further?
Re:Unmasking Northrop Grumman's XRQ-72A
by SECProto on Wednesday April 01, 2020 @11:12AM
(#22749462)
If you doubled the length of an owl (or any other object) by scaling it up, then it would quadruple (2²) the surface area, and octuple (2³) the volume.
The parent comment seemed to be suggesting the noise would scale with the surface area, while mass scales with the volume. The latter is definitely true, but I don't know about the former