2013-01-23 09:31:26.168275-08 by Dan Lyke 2 comments
The Ping Pong gun or Ping Pong bazooka has been a popular and compelling tool for physics education. However, the design necessarily means the ball emerges at subsonic speed. The design has been modified to include a pressure chamber and a convergent-divergent nozzle, similar to the design of some supersonic wind tunnels. This modification results in supersonic speeds. The current design has achieved a launch speed of 406 m/sec, about Mach 1.23.
comments in ascending chronological order (reverse):
Since a world class player hits at about 70mph and that gun shoots at about 900mph, I see some practice potential here...... for a trauma surgeon.
Here is a piece of a video of a cannon which shoots about 400mph and, at the end, the results when it hit the professor (even through a few layers of cloth.)
Wow. Guy has presentation skills and dedication to the craft of teaching!
We will not edit your comments. However, we may delete your comments, or cause them to be hidden behind another link, if we feel they detract from the conversation. Commercial plugs are fine, if they are relevant to the conversation, and if you don't try to pretend to be a consumer. Annoying endorsements will be deleted if you're lucky, if you're not a whole bunch of people smarter and more articulate than you will ridicule you, and we will leave such ridicule in place.
Connectivity provided by highertech.net , awesome bandwidth, well away from fault lines and other potential for natural disasters, reliable, and run by cool people.
Questions, comments, flames: contact Dan Lyke
Flutterby™ is a trademark claimed byDan Lyke for the web publications at www.flutterby.com and www.flutterby.net.