Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 231
Fig. 262.—An elec-tric thermostat. … Fio. 263.—A pneumaticthermostat. THERMOSTATS 221 QUESTIONS 1. A glass stopper stuck in the neck of a bcjttle may be loosened bysubjecting the neck to friction by a string. P]xplain. 2. Boiler plates are put,together with red-hot rivets. What is thereason for this ? Jy\.Jixfi 3. Why does a…
Physics
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