Rupert’s drop

Glas-tiegel, m. glass crucible, glass pot. -trane, /. glass tear. Prince Rupert s drop, -trichter, m. glass funnel. 

Prince Rupert s drops provide an interesting and easily made example of the effects of stressing glass. 

Provided that the drop is not too big and has therefore broken spontaneously in the beaker, and provided that the glass was free from airlines which would expand and relieve the internal stresses, then all attempts to break the Prince Rupert s drop will fail. If, however, the tail is broken off, the drop breaks, with an appreciable shock, into very small... 

FIG. 5.4. Prince Rupert s drops, (a) Shows tire heated glass about to drop into a beaker of water. Typical shapes for tliese drops are shown in (b). 

Prince Rupert s drop 2373 A specially made drop of glass which shatters when Its tall Is snapped. 

Ann. Chim.y 1864, ii, 385-429 (422) Victor Hippolyte de Luynes (Paris 16 August 1828-8 June 1904), professor of applied chemistry in the Conservatoire des Arts et M6tiers, worked on orcin, boric acid, and glass (including Rupert s drops , see Vol. II). 

Prince Rupert s Drops. Drops of glass that have been highly stressed by... 

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