Inductive Elementary Science With Inexpensive Apparatus And Without Laboratory
Inductive Elementary Science With Inexpensive Apparatus And Without Laboratory
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Exp. 88. With the mercury at the same level in both tubes, measure the length of the column of air confined in the closed tube ; this column should be exactly 3 inches long. Raise the open tube till the surface of the mercury in it is fifteen inches above that in the closed tube. Meas- ure the same confined air, and place the result in Diagram 1, column 3, on the next line below figure 3. Raise the open tube till the difference in mercury-level is 30 inches. Measure the same air again, and plac...e the result below the last. Return the open tube to its first position, then either lower it or raise the closed tube till the difference in mercury-level is first 7. 5, then 15, and then 20 inches, each time measuring the confined air, and recording as before. In each part of the experiment imagine a line drawn horizontally across both tubes at the lower mercury surface. Of course the mercury below that line in either tube is balanced by the mercury below the line in the other tube. Now study to determine the amount of downward pressure at the level of that line in the open tube, using the pressure of the air upon the surface of the mercury (= about 15 pounds to the square inch) as the SUPPLEMENTARY GRAMMAR-SCHOOL WORK.
What to read after Inductive Elementary Science With Inexpensive Apparatus And Without Laboratory?
You can find similar books in the "Read Also" column, or choose other free books by Bailey, Frederick H. (Frederick Harold), 1865- to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Exp. 88. With the mercury at the same level in both tubes, measure the length of the column of air confined in the closed tube ; this column should be exactly 3 inches long. Raise the open tube till the surface of the mercury in it is fifteen inches above that in the closed tube. Meas- ure the same confined air, and place the result in Diagram 1, column 3, on the next line below figure 3. Raise the open tube till the difference in mercury-level is 30 inches. Measure the same air again, and plac...e the result below the last. Return the open tube to its first position, then either lower it or raise the closed tube till the difference in mercury-level is first 7. 5, then 15, and then 20 inches, each time measuring the confined air, and recording as before. In each part of the experiment imagine a line drawn horizontally across both tubes at the lower mercury surface. Of course the mercury below that line in either tube is balanced by the mercury below the line in the other tube. Now study to determine the amount of downward pressure at the level of that line in the open tube, using the pressure of the air upon the surface of the mercury (= about 15 pounds to the square inch) as the SUPPLEMENTARY GRAMMAR-SCHOOL WORK.
What to read after Inductive Elementary Science With Inexpensive Apparatus And Without Laboratory?
You can find similar books in the "Read Also" column, or choose other free books by Bailey, Frederick H. (Frederick Harold), 1865- to read onlineMoreLess
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