(meteorobs) Multiple sonic booms
Terry Richardson
richardsont at cofc.edu
Sat Mar 19 19:18:35 EST 2005
Actually the multiple booms from a single object are dependent on shape
and in particular on having another part of the object projecting into
the air stream. A round object or nearly round object would have a
single sonic boom from the shock wave forming in front as it moves
through the atmosphere. There is no trailing "edge" of any sort to
produce a second boom..
On Mar 19, 2005, at 5:43 PM, GeoZay at aol.com wrote:
>
> Ed>>A sonic
> boom is created by the leading edge and the trailing edge of a single
> object.<<
>
>
> I wonder how the sonics would sound like, if the object was smaller
> than a
> plane or space shuttle...such as something the size of a basketball?
> Would the
> leading edge and trailing edge be too close to be able to distinguish
> separate booming? I think of a high power rifle bullet heard off in a
> distance,
> outside of the echos, it seems I only hear one boom (or pow in this
> case. :O) Or
> the cracking of a whip...also a mini-boom to breaking the sound
> barrier.
> GeoZay
>
>
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