Search found 5 matches

by Thomas A. Fine
Tue Feb 23, 2010 10:25 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Exceptional Rocket Waves Destroy Sun Dog (2010 Feb 23)
Replies: 65
Views: 16620

Re: APOD: Exceptional Rocket Waves Destroy Sun Dog (2010 Feb

Max Q http://www-rohan.sdsu.edu/~sharring/shuttle_at_max_q_web.jpg http://www.ioss.ca/ErisExplorer/ErisExplorerAtmProbe1MaxQ.jpg http://www.ktb.net/~billmeco/TitanB26PressWeb3.jpg Is there some misunderstanding about Max Q? This is maximum dynamic pressure on the rocket, and it occurs after the roc...
by Thomas A. Fine
Tue Feb 23, 2010 9:48 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Exceptional Rocket Waves Destroy Sun Dog (2010 Feb 23)
Replies: 65
Views: 16620

Re: APOD: Exceptional Rocket Waves Destroy Sun Dog (2010 Feb

There is a great explanation by Geoffrey Forden in his blog. His explanation is copied below but you will have to go to his site to see the pictures and "cartoons" he uses to illustrate his points. Shocking Good Fun posted Friday February 19, 2010 under missiles by geoffrey_forden Shockwa...
by Thomas A. Fine
Tue Feb 23, 2010 5:22 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Exceptional Rocket Waves Destroy Sun Dog (2010 Feb 23)
Replies: 65
Views: 16620

Re: APOD: Exceptional Rocket Waves Destroy Sun Dog (2010 Feb

Hey guys! I find all the talk about breaking the sound barrier and sonic booms confusing. If the rocket was going at mach 1 or faster, there would be no shock waves travelling ahead of the rocket - only in a cone shape behind it. Visually, that seems not to be the case. Yes, but by the time this ha...
by Thomas A. Fine
Tue Feb 23, 2010 2:32 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Exceptional Rocket Waves Destroy Sun Dog (2010 Feb 23)
Replies: 65
Views: 16620

Re: APOD: Exceptional Rocket Waves Destroy Sun Dog (2010 Feb

In a frame from the movie link that jaseoldboss provided there is indeed a new feature of some phenomena that apparently shoots up faster than the rocket just as the ripples form. Very interesting, it occurs at ~10 minutes, right at the end. That looks totally different than the structure I saw in ...
by Thomas A. Fine
Tue Feb 23, 2010 2:04 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Exceptional Rocket Waves Destroy Sun Dog (2010 Feb 23)
Replies: 65
Views: 16620

Re: APOD: Exceptional Rocket Waves Destroy Sun Dog (2010 Feb

So Chris Peterson, are you saying we are seeing a flat 2-D slice of the shock wave? I was thinking we were looking up at an angle through a portion of a cone in 3-D, viewing the inside of the cone. I noticed a couple of other things in http://www.youtube.com/watch?v=iwRfcrxFVEI . For one, there's so...