The Chickasha daily express. (Chickasha, Indian Territory [Okla.]) 1899-current, 1913-05-31

queer tubes and pipes where every
thing under the sun is concocted and
cooked up, 10 soc how many calories,
how much nitrogen and how much en-
ergy it will give the human body when
It's eaten.
In the laboratory Is respiration
calorimeter, a chamber in which I'm
Gle Sans scientists put subjects to
measure the energy which the subject
gives OFF while He Is engaged in diff
ferent tasks, and while fed different
diets of food When the bureau Of
chemistry sharks decide that it will
be a matter of national import to
know just the modicum Of energy that
a diet of steaed beef, bread, beans
and radishes generate, while man Is
using his muscles, they feed their sub
ject, put him in the calorimeter, set
him to work pedaling something that
looks like a bicycle, and then stand
around and watch the dials and ther-
mometers. Incidentally to discover
the amount Of energy on the same diet
that a man engaged in hard mental
work gives off, they get subject who
has a particularly brain puzzling task
to perform and watch him. The last
subject was college student who had
to pass a very rigid examination. He
spent a couple Of days in the calori-
meter alternately studying and rest.
ing, When he rested, he lay upon a
couch at ease and read II he wanted
to, or Just dozed Al all time sthe sci
entlsts watched the little thermome-
te-f, taking copious notes.
The calorimeter is a valuable instru-
ment in many ways. 1t enables the
government to recommend certain
diets as being Of the greatest use to
men and women in different occupa-
tions, and II enables them to recon-
mend combinat.jn Of foods, that are
cheap, but at the same time sustain
ing.
The apparatus itself is six and
half feet square and Of the same
height. There is a window in the side
to permit light for reading or studying,
a couch to permit the subject to lie
down, a pipe through which air enters
and another through which It is ex-
PEELED The expelled air is caught and
its oomponents analyzed, for part Of
the food you eat is expelled with
every breath.
The heat given off by the subjects
body is weighed and measured, and
then carried off through brass pipe
that has current of cold water run
ming through it. The heat absorbing
power Of the pipe is enhanced by
series Of copper discs that are soldered
to it. The method is merely the re-
verse of that practiced in bringing
heat into room By The hot water
method. In one, the cold water car
ries it away in the other the hot wa
ter brings it IN. The exact amount Of
heat expelled from the subjects body
is measured by the flow of cold water,
one colorie OF heat being necessary to
raise one kiloeram of water one de-
gree centrigrade.
important discoveries have been
made through the respiration calori-
meter" said DR. Langworthy today
1T has been determined definitely
just how much food is needed to sup.
ply the normal body with energy
enough to permit q great mental and
physical labor To every one calorie
of heat giyep css by the body It is nee
essary to eat five calories Of food
Mental work, it has been discovered,
results in as much loss Of muscular
energy as muscular work itself.
Experiments are now being con-
Quoted to determine just what agricuI
tural products or combination Of agri
cultural products produce the most
energy and heat in the human body.
The fact that cheese is an excellent
foodstuff for all purposes Of building
up the body instead Of a mere condi-
ment was discovered by the calori.
meter.
I la conducting the experiment. the
subject Is treated as Il he was a steam