Comments on: Sonic Booms Explained http://onemansblog.com/2009/02/03/sonic-booms-explained/ Specialization is for Insects. Mon, 13 Feb 2012 22:06:26 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: FrankenPC http://onemansblog.com/2009/02/03/sonic-booms-explained/comment-page-1/#comment-46412 FrankenPC Fri, 27 Feb 2009 21:13:06 +0000 http://onemansblog.com/?p=4093#comment-46412 Other things that produce sonic booms: * Propellers on prop airplanes. The tips can move fast enough to break the sound barrier. * Helicopter blades. Although I think it's dangerous for the tips of the rotors to break the sound barrier. Other things that produce sonic booms:
* Propellers on prop airplanes. The tips can move fast enough to break the sound barrier.
* Helicopter blades. Although I think it’s dangerous for the tips of the rotors to break the sound barrier.

]]> By: Terehoff http://onemansblog.com/2009/02/03/sonic-booms-explained/comment-page-1/#comment-46185 Terehoff Tue, 17 Feb 2009 14:00:58 +0000 http://onemansblog.com/?p=4093#comment-46185 Aaron Hall - article is very interesting and helps me in my scientific word in Russia! Aaron Hall – article is very interesting and helps me in my scientific word in Russia!

]]> By: Jacques Snyman http://onemansblog.com/2009/02/03/sonic-booms-explained/comment-page-1/#comment-46068 Jacques Snyman Mon, 09 Feb 2009 10:49:59 +0000 http://onemansblog.com/?p=4093#comment-46068 I like the way you think, Armen!!! A very philosophical take on barriers indeed! I like the way you think, Armen!!! A very philosophical take on barriers indeed!

]]> By: Armen Shirvanian http://onemansblog.com/2009/02/03/sonic-booms-explained/comment-page-1/#comment-46030 Armen Shirvanian Fri, 06 Feb 2009 08:25:54 +0000 http://onemansblog.com/?p=4093#comment-46030 I like how the video presents it in a straightforward way. The point about the whip brings it home with an example that we have surely heard. Barriers are crossed in different ways every so often, and when they are, we see another element of nature or our environment showing itself off. Not too long after, a new discovery becomes an expected occurrence. I like how the video presents it in a straightforward way. The point about the whip brings it home with an example that we have surely heard. Barriers are crossed in different ways every so often, and when they are, we see another element of nature or our environment showing itself off. Not too long after, a new discovery becomes an expected occurrence.

]]> By: Aaron Hall http://onemansblog.com/2009/02/03/sonic-booms-explained/comment-page-1/#comment-45987 Aaron Hall Tue, 03 Feb 2009 17:55:17 +0000 http://onemansblog.com/?p=4093#comment-45987 That is very interesting. One researcher who examined the sonic boom of a bull whip noted that "the tip can reach speeds more than 30 times the initial speed [of the whip]." Source: http://www.sciam.com/article.cfm?id=true-cause-of-whips-crack That is very interesting. One researcher who examined the sonic boom of a bull whip noted that “the tip can reach speeds more than 30 times the initial speed [of the whip].” Source: http://www.sciam.com/article.cfm?id=true-cause-of-whips-crack

]]> By: John P. http://onemansblog.com/2009/02/03/sonic-booms-explained/comment-page-1/#comment-45985 John P. Tue, 03 Feb 2009 16:33:42 +0000 http://onemansblog.com/?p=4093#comment-45985 Jackie, It's just the volume of air involved. The tip of a whip is so small that the amount of air deflected is tiny. But the mass of the plane pushing through the air is substantially larger. Plus, the plane is going to sustain Mach 1+ while the whip just manages to do it and then it's over. :-) John Jackie,

It’s just the volume of air involved. The tip of a whip is so small that the amount of air deflected is tiny. But the mass of the plane pushing through the air is substantially larger. Plus, the plane is going to sustain Mach 1+ while the whip just manages to do it and then it’s over. :-)

John

]]> By: jackie sheeler http://onemansblog.com/2009/02/03/sonic-booms-explained/comment-page-1/#comment-45982 jackie sheeler Tue, 03 Feb 2009 10:24:46 +0000 http://onemansblog.com/?p=4093#comment-45982 but why then is it a low sound when planes break the sound barrier and a high sound when a whip cracks the barrier? shouldn't/wouldn't it be the same sound? but why then is it a low sound when planes break the sound barrier and a high sound when a whip cracks the barrier? shouldn’t/wouldn’t it be the same sound?

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