The Indianapolis journal. [volume] (Indianapolis [Ind.]) 1867-1904, 1893-12-31
PHOTOGRAPHING SOUND.
Experiments by Professor Raps OF the
Berlin Physical Society.

New York Herald.
one of the most curious of modern exper-
iments is that of photographing sound. The
feat has actually been accomplished by
Professor Raps, of the Berlin Physical So
ciety, the method being based on the prop
critics of Janin refractometer. This in
strument produces interference phenomena
by means of the reflection and refraction
of a ray of light on the surface Of two
very thin parallel glass plates. If the air
between these two glass surfaces Is made
to transmit sound waves these interference
bands are displaced according TO the length
OF the sound wave. and by means OF a
piece of Photographic senSitized paper kept
in motion on a drum these aerial vibrations
can further be recorded Ii is stated that
Professor Raps has by this means secured
some photographs or the vibrations from
the surging of vowel sounds which exhibit
some remarkable peculiarities in the rela-
ton of the component parts or the SOUND 10
one another.
raphy becomes the cause OF a tragic event,
but such however, has recently been the
c. Sc in Germany. a young woman, IN the
hope OF softening the heart OF an offended
lover, had herself photographed in a coffin
and dressed in grave clothes She then for
warded the photograph TO her erstwhile
lover who was so moved by the sight, be-
lieving her to be dead and himself the
cause, that he went raviEg mad, and IS
now confined in an asylum, a hopeless case.
The question is often asked by profess
sionas why persons appear to lose all nat
Ural expression when they enter a studio
to have their pictures taken. and thus make
harder. "All hops abandoned We who enter
here" might be written up above the door,
to judge from some as they walk
irto the gallery If it were a
torture chamber. A London interviewer
has been chatting with a West-end por-
trait photographer. who says that Lord
Salisbury sits If carved out of
stone aud never speaks. Lord Rosebery
although he dislikes sitting. makes a good
subject but Mr.. Goschen, through inabil-
ity TO restrain a spasmodic twitching of
the lips. spells plate after plate Lord Ran
dolph Churchill is also Philosopher He
hates sitting, Is very irritable and tugs at
his beard until the last moment Mr. Bal
four looks bored but amiable, and has a
difficulty In dispoSng OF his legs The Duke
Of DevonShire has To be carefully watched
He has been known 10 yawn i'm the middle
of one of his speeches, and carries the habit
into one of the studios.
A society paper is responsible for the
statement that the Empress of Germany
is an ardent, dilettante photographer, and
that wherever she goes the camera is in
attendance. On the recent hunting expedi-
ton in Eberswalde. where the Kaiser shot
a specially fine deer. the Kaiserine immedi-
ateIy photographed il. She accompanied his
Majesty most days i'm strict hunting
costume, and on the last day Graf Downe
photographed the imperial pair together
the kaiserine with a lasso and revolver in
her hand. Her Majesty has photograp pm Ell
her children in every kind of position and
costume. The pictures are, however, only
shown TO favored friends, and the public
may not have a glimpse of them.