ryoder 1,590 #1 March 24, 2013 https://www.youtube.com/watch?v=xe-f4gokRBs"There are only three things of value: younger women, faster airplanes, and bigger crocodiles" - Arthur Jones. Quote Share this post Link to post Share on other sites
IJskonijn 45 #2 March 24, 2013 Physics and high-speed camera's are always a cool combination. Quote Share this post Link to post Share on other sites
kallend 2,148 #3 March 24, 2013 Quotehttps://www.youtube.com/watch?v=xe-f4gokRBs Tempered glass works on exactly the same principle. Which is why, if you do break it, it explodes into tiny pieces.... The only sure way to survive a canopy collision is not to have one. Quote Share this post Link to post Share on other sites
JohnMitchell 16 #4 March 24, 2013 Thanks for posting that. I'm now a subscriber. Quote Share this post Link to post Share on other sites
JohnMitchell 16 #5 March 24, 2013 QuoteQuotehttps://www.youtube.com/watch?v=xe-f4gokRBs Tempered glass works on exactly the same principle. Which is why, if you do break it, it explodes into tiny pieces. I was thinking that must be the case. Certainly looked familiar. Quote Share this post Link to post Share on other sites
Squeak 17 #6 March 24, 2013 that was fucking COOL You are not now, nor will you ever be, good enough to not die in this sport (Sparky) My Life ROCKS! How's yours doing? Quote Share this post Link to post Share on other sites
Arvoitus 1 #7 March 24, 2013 Imagine all that fine glass powder in your lungs.Your rights end where my feelings begin. Quote Share this post Link to post Share on other sites
ryoder 1,590 #8 March 24, 2013 QuoteQuotehttps://www.youtube.com/watch?v=xe-f4gokRBs Tempered glass works on exactly the same principle. Which is why, if you do break it, it explodes into tiny pieces. I've heard stories that the harder ceramic insulation of a spark plug could be used to break auto glass because it scratches into the tempered glass on contact. It appears there are videos on Youtube of this. Example: http://www.youtube.com/watch?v=QhlmKHbPFhU"There are only three things of value: younger women, faster airplanes, and bigger crocodiles" - Arthur Jones. Quote Share this post Link to post Share on other sites
kallend 2,148 #9 March 25, 2013 QuoteQuoteQuotehttps://www.youtube.com/watch?v=xe-f4gokRBs Tempered glass works on exactly the same principle. Which is why, if you do break it, it explodes into tiny pieces. I've heard stories that the harder ceramic insulation of a spark plug could be used to break auto glass because it scratches into the tempered glass on contact. It appears there are videos on Youtube of this. Example: http://www.youtube.com/watch?v=QhlmKHbPFhU Yes, during manufacturing the surface of tempered glass is rapidly cooled by air jets, so it hardens first. When the interior cools (and contracts) later it puts the surface in compression, and Newton's 3rd tells us this puts the interior in tension. This makes the surface very resistant to nicks and scratches, but once a crack or scratch makes it through the surface layer the interior lets go explosively. If you look at tempered glass through polarizing sunglasses you can see the stress patterns in the surface.... The only sure way to survive a canopy collision is not to have one. Quote Share this post Link to post Share on other sites
skiskyrock 0 #10 March 25, 2013 I was taking a glass blowing class a few years ago, and the instructor and I started talking about these. He made about thumb sized, and had me hold it tightly while he snipped the tail. The force was incredible. It was like a firecracker going off in my clenched fist. Quote Share this post Link to post Share on other sites
skydiver30960 0 #11 March 25, 2013 Somebody PLEASE tell me I'm not the only skydiver on this site who was wondering who the hell Prince Rupert was, and what the hell he was doing in freefall at 130,000 feet per second. Elvisio "especially after I converted that to mph" Rodriguez Quote Share this post Link to post Share on other sites
ryoder 1,590 #12 March 25, 2013 Quote Somebody PLEASE tell me I'm not the only skydiver on this site who was wondering who the hell Prince Rupert was, and what the hell he was doing in freefall at 130,000 feet per second. Elvisio "especially after I converted that to mph" Rodriguez Breaking Felix's record?"There are only three things of value: younger women, faster airplanes, and bigger crocodiles" - Arthur Jones. Quote Share this post Link to post Share on other sites
StreetScooby 5 #13 March 26, 2013 Very cool stuff.We are all engines of karma Quote Share this post Link to post Share on other sites
