Physical laboratory experiments : mechanics, optics and heat (1917)
Goodwin, H. M. (Harry Manley), 1870- · Boston : G. H. Ellis Co., Printers · leaf 146
lighting up, a dropof melted sperm should be dropped into the cup at the baseof the wick, to prevent charring the wick before the cupbegins to supply sperm. Upon extinguishing the candle,a drop of sperm should be allowed to fall on the glowing endimmediately after the flame is blown out. When… … i^i Fig. 5. the counterpoise, W, of candle balance (see Figure 5) until ita little less than balances the candle; set the beam oscil-lating and observe the swing of the index on the scale, S, as the candle graduallyburns away. Note by awatch or clock and recordthe time to the nearest sec-ond, when…
Physics · Mechanics
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