Evening star. [volume] (Washington, D.C.) 1854-1972, 1926-12-31
PHYSICS

DR.. w. d. Coolidge of the General
Electric Co. demonstrated a new cath
ode ray tube, with which these rays
are for the first time obtained in guam.
! tity outside the tube. The effect of
the tube is estimated to be equivalent
to q ton Of radium
Prof. A. A.. Nicholson of the Univer-
sity of Chicago announced his new
determination of the speed of light
as 299,7S6 KIN. or 1S6,284 miles per
second.
Helium was prepared in solid form
at a temperature of 457 degrees below
zero Fahrenheit by Prof. w. Fl. Kee-
son of the University of Leyden. Hol-
land.
Magnetism of hydrogen atom was
measured by Drs. j. B. Taylor and T.
K. Phipps of the University of Illinois.
The penetrating cosmic rays vary
daily with the aspect of the heavens.
DR.. Werner Kolhoerster, German
physicist, found.
Experiments made by means of
midnight balloon ascensions in Bel
GUM showed no ether drift, thus sub
stantiating the Einstein relatively
theory.
DIR. Roy ]. Kennedy of the Cali
fornia Institute Of Technology re-
peated the Michelson-M Morley expert
ment and obtained no evidence of
ether drift
Experiments by DIR. Carl T. Chase
of the Norman Bridge Laboratory of
Physics at Pasadena gave strong sup
port to the Einstein theory of relativ-
ity, quite in opposition to DIR. Dayton
G. Miller's results antagonistic to the
famous theory.
Experiments by DIR. Rudolph Tom
aschek of tho University of Heidel-
berg. Germany, fail to confirm the
ether drift said to have been indicated
by experiments of DIR. Dayton G.
Miller at Mount Wilson, Calf.
DR.. O. NJ. B. Dobson and Prof. r.
A. Lindemann of Oxford University
showed that the temperature so miles
above the earth is as high as that of
a warm Summer day.
A vacuum switch which stops i'm
mense electrical currents safely was
devised in the new high-tension lab
oratory of the California Institute of
Technology.
A new kind of vacuum tube with
which electric currents can be ampli-
fled two million times was developed
by DIR. Albert w. Hull and III. N. Will
liams working In the research labora-
tary of the General Electric Co.
The sound of a single atom of ra-
dunn was made audible to radio broad
cast listeners when DIR. III. P. Cady,
chemist of the University of Kansas,
amplified minute electric currents TOO
billion times.
The proposition that beats of
master pendulum Of great precision
might be signaled throughout the
world by radio, so that all Geographic.
astronomical and radio instruments
would be in exact tune with each
other, was urged by Albert Einstein
before the League of Nations COM
mittee on intellectual cooperation.
DIR. James Franck of the University
of Goettingen and DR. Gustav Hertz
of the University of Halle divided the
1925 Nobel physics prize, and Prof.
Jean Baptiste Perrin of the Sorbonne,
Paris, was awarded the 1926 prize.
Prof. Neils Bohr, physicist. received
Franklin medal from Franklin 1nsti-
tute for his work on the structure of
the atom.
DIR. w. d. Coolidge, inventor of the
type Of X-ray tube now almost uni
versally used in hospitals and labora-
tories, was awarded the Howard N.
Potts medal of the French Institute
for his invention which has simplif1ed
and revolutionized the production of
X-rays."