The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1896-05-27

| NEW YORK, May 26.-The Electrical
I Review, in it's issue last week, announced
by authority that Nicola Tesla had per-
fected his vacuum tube system of electri-
cal lighting without wires, the possibility
of which he first brought to public notice
| five years ago in a lecture before the
American Institute of Electrical En-
gineers. This light is more brilliant and
more intense than the arc light and is
produced with a much smaller amount of
electrical energy. A laboratory photo
graph has been made by means of this
light with an exposure of only two sec
onds. The detail in the photograph is
remarkably fine. Tesla further states
that his apparatus has been greatly SIM
plified and he will soon have it
READY FOR PRACTICAL USE.
Working on different lines Thomas A.
Edison has, according to the Electrical
Review, to be published tomorrow, sue
ceeded in developing a new kind of cleo
trlc lamp or vacuum tube by means of
which the Roentgen rays are turned into
pure, white light. Edison's new lamp
is an ordinary Crookes tube, coated on
the interior surface with crystals of
new fluoreScent substance which he has
discovered similar to tungstate, or cal
L passing through their
coating OF crystal, are changed to light.
Very little heat is generated, and nearly
the whole of the electrical energy eX-
pended is transformed into light. The
new lamp is used in place of the Crookes
tube with the ordinary X rays apparatus.
Mr.. Edison believes there are great posi-
bilities in his discovery and is now en-
Enthusiastically at work perfecting his ap-
paratus for, commercial requirements. He
expects that before long he will SO de-
SeIOp 1t that 1t may be
USED WITH HIGH ECONOMY
on an ordinary incandescent circuit
Mr.. Edison speaks of this new discovery
in these words:
What l have succeeded in doing is
this: Instead of generating the x rays
and throwing them off into space, 1 have
turned them into pure white light of
nigh refrang1billty. 1t seems as if practi-
cally all the electrical energy is trans
formed into light. To the eye the light
is pure white, resembling bright sun
light. 1t has none of the moon light eff
rect. The spectroscope shows, however,
that there is plenty of red in it. and it is
therefore, normal light.
L can make these new lamps of any
size and the efficiency of the Y RAYS an
paratus with them can be made very
nigh. L can also run a number of these
new lamps in multiple arc. ] am now at
work on endurance tests of the bulbs
and am working to get the system into
simple commercial form
Electrical and scientific people are
eagerly watching the outcome of the
work of these two great inventors on this
important subject The journal above
named says editorially: I'VE cannot hest
tate to express our positive conviction
that the introduction of more perfect
illumination is near at hand"
The Electrical Review states that Mr.
Nicola Tesla has been suffering from a
severe attack of la grippe for two weeks
past during which time he was only
able to be at his laboratory few hours.
lie IS now improving in health. He was
seen at his hotel on Monday and asked.
as the originator of vacuum tube lighting
If he had anything to say about Mr. Edi-
sons new vacuum tube lighting, and re-
pied enthusiastically that he had the
utmost faith in the genius of Mr.. Edi.
son. and heartily congratulated him on
his success as announced