The Wichita daily eagle. [volume] (Wichita, Kan.) 1890-1906, 1903-04-22
KODAK GUN Is
DAYS WORK
Photographs Winds, Mans
Breathing and Heart Beat.
PROBLEMS OF THE AGES
Are Solved by invention of
DR.. J. Marcy.

the world, says the New York Word.
The new invention comes from France.
DR. ]. Marcy, a member of the Institr.
OF France. is the man who has --,e.,e Is
it so that it viii accompI' =, r.bst has
up to the present time ossn tbo,,,ht -
be impossible.
DR. Marey's [,,seovarie, ware -,a5o ,,,,b
lie several months ago before the Nom.
oers ~f the AGA Denny of Science in Paris
1t ais paper was not translated until
recently, when it was included in the lat
est report of the Smithsonian Institution.
Or. Marcy has cleared up several mys-
teries.
Until his paper was read before the
scientists and learned men Of France the
Following problems were said to be too
hard for human ingenuity to solve:
% How to photograph moving currents
OF air
@ How to photograph the waves of the
sea in notion.
90 Gow the wind moves when it meets
an obstacle.
f0How TO photograph the human voice.
to) How to photograph the heart of a
living animal
These problems are of interest to every
one WHO breathes not to a handful of
persons only. The first and third prob
lens, for instance, are concerned with
The way in which fresh air may be
brought into a room and the foul air
driven out
Like the trick of Columbus in making
an egg stand on its bottom by chipping
off the bottom. Dr. Marey's method Of
photography was easy enough as soon as
Ii was explained
The extraordinary instrument used by
him is called a 'chronoT hotograY hic
gum" To describe it in simpler words
IT. is a kodak-gun that takes photos like
q; moving picture machine
The film on which the pictures are
taken is sixty feet long. In the stock of
She gun is a clOckwork arrangement mov-
ed by a dynamo.
When a series of pictures is to be taken
the gun is levelled at the moving object
and the trigger Is pulled. This releases
the roll of the film. which moves rapidly
In front of the open shutter until the
trigger is let go.
The first kodak-Sun was constructed in
1852. but it was imperfect in many re-
spects. Thomas A. Edisons kaleidoscope,
invented in 1894. introduced a number of
improvements and made picture moving
machines practical for theatrical and ex-
hibition purposes.
DR.. Marcy, the French invento-. has
added several improvements to Edisons
machine, besides COMPRISING it into the
gun shape.
he has found how TO take larger photo
graphs. how to combine the machine with
microscope and how to operate it in
the dark by means of a fashlght attach
ment.
DR.. Mareys happy thought in his at
tempts to photograph the air, was to send
a current of hot air into current of cold
air
When lit up by a magnesium fiashlight
the small streams of hot air are printed
plainly on the film OF the kodak-gun.
BY placing wooden blocks of different
shares in the path of the hot air cur
rents DR. Marcy has found out how the
wind circles about when it meets an i'm
movable object.
This is discovery of great importance
to people who live in a city of sky
scrapers and strong wind currents such
as New York has become.
It may be possible to erect a wind
break like the new Flaiiron building IN
Madison Square without filling the str, cts
around it with small cyclones. if The
hints given by Dr. Marcy are carried cut.
Another method by means of which
the French doctor discovered and photo
graphed the course OF the wind was by
the use of currents of smoke, blown
through small glass tubes.
To give Or. Mareys own words. he
GAYS:
In large canal having walls of plate
glass and before a dark background a
draught of air is created by means of a
ventiiator In order TO regulate the cur
rent il is filtered through a very fine 81 k
gauze. At the top OF the canal we set
free by means of 4 series Of little tubes.
fllets of smoke which descend parallel TO
one another like the three cords of Tyre.
Now. if We place in the interior Of the
canal obstacles Of different forms. we
see the threads bend on these
slide over them and form behind
them eddies of varied forms.
I'VE see how the Gllets Of air lick the
plate. slide on it and form backwater
behind Il.
Then we make the little tubes that
carry the smoke abrate ten times a sec
ond. sending the smoke in tiny waves"
BY means Of a kodak-gun. Or. Marcy
has found that the air currents slow u
on approaching an object ami increase
their speed when going past it. thus eI-
planning the high winds that sweep
through the streets in a skyscraper dis |
trict
Problem No 2.-How TO photograph the
waves Of the sea in motion-Dr. Marcy
solved in most ingenious way
To photograph the waves as they are /
seen from the shore or from the deck OF /
q vessel would be NJ difficult task, but /
DR.. Msreys photos show the acton of
the water particles from the surface OF
the waves clear down 20 the deep water
below.
When the wind bows upon the surface
OF the ocean and forms waves DO the
particles OF wate- merely move up and
down. or are they swept forward by the
wind? This is one OF the questions which
DIR. Mareys experiments have answered.
First. a large tank ~ clear. plate elaSs
was made and nearly flied with water.
Then a large number OF silvered vea-'s
were dropped into the water Being Of
the same weisht az the water its II, the
pearls fioated through the water like tiny
points Of light
The sunlight was thrown directly on the
water by means OF large mirror. and
behind he tank a black Goth was hung
Then the tank was violently shaken and