thin, Breguets thermomctGris one of the most delicate and sensitive Instruments wo possess; theslightest variation of temperature being measured with precision andrapidity. … PYROMETERS. 25 64, When hot water is suddenly pcnired upon a thick plate ofglass, or when the flame of a lamp is directed against it, onesurface becomes hot and expands before the heat penetrates tothe other surface of the plate. As in the case of the compoundbar of metal (Art. 52), we hare here…
Physics
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