The morning call. [volume] (San Francisco [Calif.]) 1878-1895, 1893-05-28

The invention of an electric light which
can be placed in the mouth for the purpos
of rendering the muscles of the face trans
parent is a very important aid TO surgeon
and physician in diagnosis. and also in
performing operations. There will be less
guesswork In delicate probings or use
of the knife and needle. This lamp should
soon be made available for the throat and
stomach. and pho biography allied with it.
The very powerful currents which may
now be obtained and employed to produce
phosph0rescence in vacuum tubes or vases
may be applied to produce magical effects
on the stage in spectacular pieces. Thus
dancers without any lamp visible. on CON-
ing within the influence of high frequency
current would suddenly flash out in
brilliant coruscatiens which would as sud
denly vanish. With little beads of colored
glass an infinite variety of effects might be
thus obtained. But the stage would require
Tor this work good scientific electrician.
The rain-producsr once more is trium-
phant The mayors of half a dozen towns
in Kansas organized a bombardment of
the sky for rain, which refused to respond
to whistling or any other form of coaXing
and after all the spare powder in the dis
trict had gone up in sulphurous fumes the
clouds sent down deluge which oyerran
the parched land during four hours. BY
all means these energetic administrators
should procure fresh supplies of ammuni-
ton ana continue to vibrate the atmos-
phere and shake all the moisture out Of it..
Except in mining aud road-making there
is no more commendabe use 10 be made OF
gunpowder than in making the earth fruit
full. But did the powder really touch of
the rainfall, or would it have descended
Tuif hC,, scfc fa,,o npft owl ot nc iyrQ Az
neriments can show. There is good ground
for the assumption that raindrops contain
some little solid matter as a nucleus. and
gunpowder may accelerate the condensa-
tion Of moisture in this way.
New wonders in electricity were the
chief features of the first of the two an
Society of England. Mr.. A. c. Swinton
produced an alternating current OF great
frequency by means Of an ordinary Undue
ton coil feeding into two Leyden jars.
The electricity was poured forth in purple
streams into aim ost any description of con-
ductors. la repeating TEXAS experiments
he lighted five-candle-p0wer glow-lamp
by current which passed through his
own body, and he allowed roaring flight
Of sparks to Issue from his finger tips. The
current was also sent in strange forms
into glass, oil. water and other conductors
and Eop-conductors, and IL was seen 10
spray out into the atmosphere. Some OF
the demonstrations of currents passing
through the body would have been deemed
fatal to life by the most advanced
electricians few years ago. out appar-
emily we are only picking up the alphabet
OF electricity in a few applications. We
shall assuredly have made astounding
journeys beyond this threshold before the
century closes, but that can only be by
work and study. Now is the time for
men of wealth to give their money to the
cause of science.
Luminous effects of currents with high
frequency ware shown ut the Royal Soci-
ETY. soree by Sir David Salomons and Mr..