• Rupert's Drop: An amazing high strength glass
    13 replies, posted
This glass is amazing, completely changes what you thought the properties of glass were [url]http://www.wimp.com/glassexperiment/[/url]
Interesting.
Awesome!
It boogggggles my mindd
Weird.
I wish they showed a high speed camera shot of the drop breaking. Other than that, pretty amazing.
You know, that thing could be used by the military as like a glass bomb.
*Scratches head*
[QUOTE=mrgrim333;18032128]You know, that thing could be used by the military as like a glass bomb.[/QUOTE] And we could use pencils, really big ones, as multipurpose bayonets, too! We're on to something, here!
I want to install windows made if this in someone's house, all connected to one tail. Once they are settled in for a lovely evening of ice cream and Charles Dickens, snip it and shatter every window in the house.
the end is very brittle so i'm guessing if it was hit by kinetic impact it would break [editline]10:54PM[/editline] making it useless as armor sadly
[QUOTE=TrulliLulli;18032313]the end is very brittle so i'm guessing if it was hit by kinetic impact it would break [editline]10:54PM[/editline] making it useless as armor sadly[/QUOTE] It's actually really strong, notice how easily it bends, he only says it's [B]relatively[/B] weaker than the main part, he uses a lot of force to cut the tail
[QUOTE=Kondor;18032362]It's actually really strong, notice how easily it bends, he only says it's [B]relatively[/B] weaker than the main part, he uses a lot of force to cut the tail[/QUOTE] A lot less force than an armor piercing round though.
[QUOTE=Diealready;18032081]I wish they showed a high speed camera shot of the drop breaking. Other than that, pretty amazing.[/QUOTE] We have carried out high-speed and semi-Schlieren photographic studies of the explosive disintegration of Prince Rupert's drops at framing rates ranging from 6500 frames per second to 1 million frames per second. The high-speed photographic sequences revealed that in a disintegrating drop the crack front having been initiated in the tail, propagated at a high velocity (~ 1450-1900 m/s) within the tensile zone towards the drop's head. Finger-type cracks at the moving crack front were observed, which indicated that these were a consequence of repeating bifurcation events. From the high-speed photographic observations and other measurements, a mechanism based on the repeated bifurcation of fast moving cracks within the tensile zone in the drop has been proposed for explaining its disintegration. The talk will describe these studies as well as how modern toughened glasses evolved from these drops. [url]http://www.physics.purdue.edu/colloq/99-00/chandrasekar.html[/url] Shame there is no internet video of that one though, because this one is pretty shitty [url]http://www.youtube.com/watch?v=ftTKcqybIcg[/url]
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