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Prince Rupert's Drop and Glass Stress

This is one of those WOW moments, when you see your first Prince Rupert's Drop.
 
It is a small bit of molten glass dropped into a bucket of cold water.
 
What happens next is quite amazing,
 
Check any/all of the links below to learn a LOT more!
 
If you want to understand more about the science and process of glass stress and tempering,
click here to view/download the 52-page book entitled "The Glass Tempering Handbook: Understanding the Glass Tempering Process" written by Jonathan Barr

 
YouTube When I wrote the above, I did not expect three years later to be able to see exactly what happens at 130,000 frames per second (fps) video,
with the help of a $100,000 Vision Research Phantom v1610 video camera on YouTube!!!
 
http://www.youtube.com/watch?v=xe-f4gokRBs&feature=youtu.be
What you can see is that the fracture starts at the tail and travels down the piece, this is 154 seconds into the video.
http://www.youtube.com/watch?feature=player_detailpage&v=xe-f4gokRBs#t=154s
Glassblower.info - Prince Rupert Drop video on Youtube at 130,000 fps #1
Glassblower.info - Prince Rupert Drop video on Youtube at 130,000 fps #2
The video then goes on to derive the Failure Front (explosion) at ONE MILE PER SECOND (equivalent to 3,600 mph!)
Glassblower.info - Prince Rupert Drop video on Youtube at 130,000 fps! #3
Video created at Orbix Hot Glass in Alabama. https://orbixhotglass.com/
Awesome camera
http://www.visionresearch.com/Products/High-Speed-Cameras/v1610/
http://www.visionresearch.com/uploads/Docs/Products/DS_WEB-v1210-v1610.pdf
Glassblower.info - Prince Rupert Drop video on Youtube at 130,000 fps #4
www.cmog.org
Corning Museum of Glass
Click the image below to see the whole Prince Rupert's Drop web page at CMOG...
Glassblower.info - Prince Rupert's Drop and Glass Stress - Web Pages and Videos
www.wikipedia.org
Wikipedia - The Free Encyclopedia
Click the image below to see the whole Prince Rupert's Drop web page at Wikipedia...
Glassblower.info - Prince Rupert's Drop and Glass Stress - Web Pages and Videos
www.YouTube.org
YouTube - Broadcast Yourself
by onedotsix on November 14, 2006
Click the image below to see the whole Prince Rupert's Drop web page at YouTube...
Glassblower.info - Prince Rupert's Drop and Glass Stress - Web Pages and Videos
www.YouTube.org
YouTube - Broadcast Yourself
by onedotsix on November 14, 2006
Click the image below to see the whole Prince Rupert's Drop web page at YouTube...
Glassblower.info - Prince Rupert's Drop and Glass Stress - Web Pages and Videos
University of Missouri-Rolla Ceramic Engineerig Click the image below to see the whole Prince Rupert's Drop web page at video.google.com...
Glassblower.info - Prince Rupert's Drop and Glass Stress - Web Pages and Videos

 
I have taken my own polariscope photos of Prince Rupert's Drops (which I made myself, fun!), I hope you like them!
 

 

 

 

 


 
At 16:26:35 February 26 2017 displayed this glassblower.info
glassblowing web page at 173.12.39.201 last modified: January 25 2015