Laboratory exercises in physics for secondary schools (1906)
Twiss, George Ransom, b. 1863 · Chicago, Scott, Foresman and company · leaf 241
with pincers only. (c) The balances should not be permitted to vibrate whileobject or weights are being placed in the pans. These directions apply to balances that have no adjustingscrew and no beam and pan arrests. If the h<il<i>i<<s areprovided with lxrun and pan arrests, the… … 220 APPENDICES the load is being changed. // there is a screw for adjusting toequilibrium, this is turned toward the lighter side, instead ofadding sand. Hand balances may be conveniently suspendedupon a vertical support rod by means of a screw clamp as inFig. 50. The pans should not be far above…
Physics
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