l of experimental and practical work may weight. This experiment illustrates the action of a be done with the simple air pump recently described form of vacuum brake now extemsively in use; the in these columns. The apparatus required for the vac- weight representing the brake. uurn experiments… … RUBBER FORCED INWARD BY DISRUPTIVE FORCE OF ATR. AIR PRESSURE. 9 WITHDRAWING AIR FROM MICROSCOPE SLIDES. WATER BOILING IN VACUO. BELL IN VACUO. tied over the open end of the chimney, asshown in Fig: : ber large enough to cover the fish globe, a plain disk of 4, When the air is exhausted from the…
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