Page:Various Forces of Matter.djvu/58

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46
COHESION.

which it was held. I can show the effect better in this bottle of water, and it is very likely the whole bottle will go. [A 6-oz. vial was filled with water, and a Rupert's drop placed in it with the point of the tail just projecting out; upon breaking the tip off, the drop burst, and the shock being transmitted through the water to the sides of the bottle, shattered the latter to pieces.]

Fig. 13.

Fig. 14.

Here is another form of the same kind of experiment. I have here some more glass which has not been annealed [showing some thick glass vessels [1] (fig. 14)], and if I take one of these glass vessels and drop a piece of pounded glass into it (or I will take some of these small pieces of rock crystal—they have the advantage of being harder than glass) and

  1. Page 46. Thick glass vessels. They are called Proofs or Bologna phials.