|
|
||||||
|
Off-Topic
Everything not about BMWs. Posts must be "primetime safe" and in good taste. No personal attacks allowed. Political posting is restricted to the Political Science forum! |
|
|
|
Thread Tools | Display Modes |
|
#1
03-26-2013, 10:44 AM
|
||||
|
||||
|
Prince Rupert’s Drops - amazing properties of molten glass
Basically a sperm-shaped blob of highly-tempered glass. The head can be hit with a hammer and not shatter. If the tail is even slightly damaged, the thing explodes. Really cool video:
Prince Rupert’s Drop: The Curious Properties of a Molten Glass Blob Dropped in Cold Water | Colossal
__________________
cmac As I know more of mankind I expect less of them, and am ready now to call a man a good man upon easier terms than I was formerly. - Samuel Johnson 
|
|
#2
03-26-2013, 10:47 AM
|
||||
|
||||
|
that's really cool!
__________________
535i XDrive | Alpine White w/Black+Natural Leather Interior It's ALL perspective - get some. No - I am NOT addressing YOU!
|
|
#3
03-26-2013, 11:42 AM
|
|||
|
|||
|
Thanks for posting that, very cool stuff.
|
|
#4
03-26-2013, 12:33 PM
|
||||
|
||||
|
So strange. Interesting. Thanks for posting.
__________________
MatWiz "Seeing is not believing. Believing is seeing." -Judy the Elf
|
|
#5
03-26-2013, 07:50 PM
|
||||
|
||||
|
That slow-mo vid of glass shattering in a chain reaction is pretty wild. I tried a seat of the pants calculation to see how long it takes approx to go from the fracture point to the ball and I couldn't pull it off. Highest speed footage was 130,000 FPS (?!) I'd have to know the rate of playback I think.
Ahh, watched it again and they determined that the chain reaction* travels at a hair over one mile per second. So an 8 inch traverse would take 1.3/ten thousandth of a second. *EDIT* * They used the phrase 'failure front' which sounds more cool.
__________________
cmac As I know more of mankind I expect less of them, and am ready now to call a man a good man upon easier terms than I was formerly. - Samuel Johnson Last edited by cmac2012; 03-27-2013 at 08:36 AM.
|
|
#6
03-26-2013, 09:01 PM
|
|||
|
|||
|
Thanks, VERY neat!!
|
|
#7
03-27-2013, 01:01 PM
|
|||
|
|||
|
Very cool.
One mile per second. 3600 miles an hour.
__________________
Keep it as simple as possible...but no simpler.
|
|
|
| Bookmarks |
| Forum Navigation | |||||||
|
Today's Posts Search | ||||||
| Thread Tools | |
| Display Modes | |
|
|
Linear Mode
