The Waxahachie daily light. [volume] (Waxahachie, Tex.) 1894-current, 1909-03-08


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~ ea1 lhc invention oi thr elrc
iue lbmr ln the early eighties which
made il pouIhlc 30 develop nsv and
Improved ideas u rggsrd TO eotrcct
llehttoa A. nrsi ihd Ingenuity of the
,mbHa llumfnaiue engineer wes
taxed te develop u,v sccuic effects
for iIIa iheairca Then began the
study and application ~ electric
liebt for large halls and public
buildings while for The lighting Of
he home. the stores aud churches.
ihe simplest methods were long con
tinued in use. often without regard
for the precise results which might
Do obtained
1t was the invention OF the more
powerful illuminants which made
necessary the Illuminating engineer.
The incandescent lamp, the improy-
I'D Electric arc lamps and the new
metallic filament incandcsccnt lamps
such as the new Tantalum and the
Tungsten. gave abundant opportun-
tiles for illuminating effects, and at
the same time offered a wide field
for the study of light concentration
and human health and happiness in
rooms artihcially lighted,
SO came into being the illuminat-
ing engineer, born OF necessity, and
secure in a position which grows in
importance year by year A word
about the new profession will show
it's significance.
All engineering involves questions
of economy Mining engineers make
systematic study of their profess
sion that they may be valuable to
their employers In keeping them
from wasting money on worthless
claims. This is also true Of civil en-
others. by economy here IL meant
not pinching but the avoidance OF
waste; not the doing without some
thing that Is needed but care TO get
the full use of It. The best engineer
ing, ordinarily, Is that which ac-
complIshes the results wanted at the
least cost Illuminating engineering
Is no exception to the rule,
More important than the matter
of cost Is the matter Of selecting the
right sort Of light, and 80 placing
the sources and directing the rays
that will shine where wanted, with
out glare or discomfort TO the user.
The drowsiness that comes over us
In church or public hall Is not al
ways due TO the business OF the
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tIon we are not always fair when
we blame II on the poor minister,
Quite az likely Il As due to an un-
conscious straining Of the eyes caus-
cd by an exposed Night In our field
OF vision.
The almost irresistible desire to
close them In peaceful slumber Is
merely outraged Natures efforts to
get relief
Indoors the distressing sensation
caused by looking al a bright light
must be prevented, yet without
needlessly reducing the total light.
Ordinarily the more powerful the
individual units the fewer the num-
her required and the cheaper the m
stalation Against this saving Is to
be placed the greater risk of uneven
illumination or what has been called
"splotchy' lighting. The correct Sc
lection OF shades Is important; some
shades nre source OF great waste;
some retectors spread the light
considerably, while others concen-
trate It in strong beam In one d.
rection. Each must be chosen TO ut
the conditions, and n dollars worth
Of energy. inteliigontly used, Will of
ten give q more pleasing effect and
brighter light whore needed than
twice as much unwisely consumed.
There are number OF prominent
consulting engineers In the country
who are now devoting their attention
to this field of activity. and whose
services are engaged for devising
new systems or Improving old ones.
They stand in the same relation 20
their clients as do their brethren In
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