...; and when' the contents of it were heated to 130 degrees, the Caoutchouc floated on. the surface. Experiment I. Hold one end of the slip, thus prepared,...Caoutchouc ; for this resin evidently grows warmer the farther it is extended, and the edges of the lips possess a high degree of sensibility, which enables...

...natural length : alter taking these preparatory steps, extend the slip suddenly, and you will immediatfly perceive a sensation of warmth in that part of the...them to discover these changes with greater facility thai other parts oft the body. The increase of temperature, which is perceivtd upon extending a piece...

...slip suddenly ; and you will immediately perceive a sensation of warmth in that part of the inouth which touches it, arising from an augmentation of...Caoutchouc; for this resin evidently grows warmer the farther it is'extended, and the edges of the lips possess a high degree of sensibility, which enables...

...and forefinger of each hand; bring the middle of the piece into slight contact with the lips; . . . extend the slip suddenly ; and you will immediately...warmth in that part of the mouth which touches it. ... So wrote John Gough in 1806. The reader may easily verify that rapid extension of a rubber band...

...0.91 g/cm3. (c) Gough (1805) describes the following experiment with a Caoutchouc slip (rubber band). 'Hold one end of the slip, thus prepared, between...evidently grows warmer the further it is extended . . . The increase in temperature, which is perceived upon extending a piece of Caoutchouc may be destroyed...