If the lighting
circuit gives 110 volts he can connect eleven 10-volt lamps in
series. These will give 3 cp. each, and the whole set of 11 will
take one ampere of current, and cost about the same as a 32-cp.
lamp, or 1-1/4 cents per hour. Simply connect the miniature
circuit to an Edison plug, and insert in the nearest lamp socket.
Any number of different candle power lamps can be used providing
each lamp takes the same amount of current, and the sum of their
voltages equals the voltage of the circuit used. This arrangement
of small lights is used to produce a widely distributed, and
diffused light in a room, for display of show cases, and for
Christmas trees. Of all these sources of power the two last are
the most economical, and the latter of these two has in its favor
the small initial cost. These lamps are by no means playthings or
experiments, but are as serviceable and practical as the larger
lamps.
--Contributed by Lindsay Eldridge, Chicago.
** How to Make a New Language [105]
Anyone possessing a phonograph can try a very interesting and
amusing experiment without going to any expense.
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