This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 Excerpt: ...strips; but only for a moment or two, so as to heat the metals gently and equally. You will be surprised, possibly, to see the top of the strip move to one side or the other. Let us call the two metals A and B, as indicated in Fig. 65, and let us suppose that when the metals are equally heated the top moves toward the ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 Excerpt: ...strips; but only for a moment or two, so as to heat the metals gently and equally. You will be surprised, possibly, to see the top of the strip move to one side or the other. Let us call the two metals A and B, as indicated in Fig. 65, and let us suppose that when the metals are equally heated the top moves toward the side on which B lies. Which, therefore, of the two metals has the greater coefficient of expansion, A ox B? See whether, on cooling, the top of the metals comes back to the index. If the top does not come back, it is probable that you have not clamped the metals tight enough to prevent slipping. By holding the flame, first against one metal then against the other, you can make the strip bend in either direction. How do you explain this? How could you employ a pair of metal strips, such as these, to indicate when the temperature of a room is too high or too low? (c) Call the four metal strips A, B, C, and D. Try them in pairs, as follows: A and B, A and C, A and D, B and C, B and D, C and D. After examining each pair with the flame, record your result as follows: --Coefficient of B Coefficient of O, Coefficient of B Coefficient of D, etc. Only, instead of using letters, record of course the names of the metals. (d) Finally, arrange your metals by name in a column so that the one at the top shall have the largest coefficient of expansion, the one at the bottom the smallest, and the intermediate ones shall also be in the order of their magnitudes. Exercise 50.--Fixed Points of a Mercury Thermometer References.--Crew, 222; Avery, 220-221; Carhart And Chute, 184; Hall And Bergen, 292. Apparatus.--Centigrade thermometer, graduated from the freezing-point to the boiling-point, or, preferably, a degree or two higher; small battery jar; snow or finely c..
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Add this copy of A Laboratory Manual of Physics: For Use in High Schools to cart. $18.00, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
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Add this copy of A Laboratory Manual of Physics: For Use in High Schools to cart. $41.38, new condition, Sold by Ria Christie Books rated 5.0 out of 5 stars, ships from Uxbridge, MIDDLESEX, UNITED KINGDOM, published 2022 by Legare Street Press.
