1936-12-17 — Page 6

THE HONGKONG Telegrafi, Thursday, DECEMBER 17, 1938.

WATSON'S

$1.25 & $2.00

Par Bottle

GENUINE

BAY RUM

The Ideal Non. Creasy

Hair Lotion

STIMULATING

AND

REFRESHING

A. S. WATSON & CO., LTD.

THE RELIANCE WE PLACE IN THE QUALITY OF OUR PIANOS IS INDICATED BY THE FACT THAT EVERY INSTRUMENT WE MANUFACTURE BEARS OUR OWN

NAME.

THE FIRST "MOUTRIE" PIANO WAS MANUFACTURED OVER SEVENTY-FIVE YEARS' ACO: THE "MOUTRIE" OF TO-DAY COMBINES EVERY MODERN IMPROVE. MENT IN DESIGN AND CONSTRUCTION, PLUS THE BENEFIT OF OUR EXTENSIVE EXPERIENCE OF LOCAL

CLIMATIC CONDITIONS.

......

A "MOUTRIE" IS YOUR SAFEST INVESTMENT, THEY ARE SOLD ON THE EASIEST OF TERMS, AND ARE

BUILT TO GIVE A LIFETIME OF SERVICE.

May we quote you?

HOME DELIVERY

of the now

1937

Vauxhalls

If you are going home on leave, this will interest you..

You can arrango now to stop ashore at home and drivo away in a now. Vauxhall,

We assist you in this connection without any trouble or complica- tion to yourself. delivered to you at home and subsequently in Hongkong.

Catalogue & Full Particulars from

The next ten days are the shortest in, the year. There are few people whose eyes do not suffer for need of enough artificial light- though we may not know it

NE-THIRD of the people of Hongkong have taken to wearing glasses within the last hundred years.

The people of Hongkong have taken to working -sewing, reading, carpentering, writing by artificial light within the last hundred years.

Cause and effect? Probably.

It is within the last century that artificial light has so greatly improved, first with gas, now by gas and electricity, that people can work after dark.

But the eye, which can adjust itself within a moment from focusing at the distance of a mile to focusing at half an inch. which took a thousand centuries to evolve into its present form- the eye can scarcely be expected to adjust itself to a ractical

Hongkong Hotel change of usage within a mere hundred years.

Stubbs Rd.

Garage

The

Phone 27778/9.

THE problem of artificial light involves a number of

factors only now beginning to be understood.

The eye is more sensitive to artificial light than to daylight.- That is because artificial light is almost always yellow rather than the blend of all colours of the rainbow which we term "white," and the yellow portion. of the spectrum is absorbed more easily by the eye than any other.

Thongkong Telegraph. of daylight.

THURSDAY, DECEMBER 17, 1936

ARMAMENTS OR TRADE?

Consequently a comparatively small quantity of artificial light will enable the eye to do as much work as a larger quantity This is just as well. The sun at noon sheds 10,000 "fool- candles" of light upon the earth. Your desk, if it is well lighted by artificial light, probably has only twenty foot-candles of light on it.

A foot-candle, the scientific unit of mea- surement for illumina- tion, is the amount of re-light shed by a stand- ard candle upon an its

object held one foot away from the candle flame.

If the world persists in armament, it will persist in own impoverishment, said Mr. Anthony Eden in his speech on foreign affairs a few days ago. But the matter does not end there. Not only is money wasted in unproductive chan

nels, but

armament

CONSIDER the range of fool-candles you en- counter in daylight within the course of rivalry a week to which your eye has constantly to be adjusting itself. Ten thousand in the sun; one thousand in the shade; five hun- dred in the porch of a house; two hundred a few feet inside

must endanger world peace. Thus there is much point in Mr. Eden's plea that the nations of the world should turn from and armaments competition

S. MOUTRIE & CO., LTD. embark on a policy of economic

York Building

Chater Road

Cin Early Tip On

GIFTS

Let "Elizabeth Arden" Solve Your Gift Problem with Her Charming Gift Set.

FAREWELL TO AGE BEAUTY BOX

C.T.N. BOX

WEEKEND BOX

LEATHER BEAUTY BOX BATH CRYSTALS

DUSTING POWDER JUNE-GERANIUM SOAP,

PATTERS, JAPONICA

POWDER

AND

MANY OTHERS OF HER DELIGHTFUL BEAUTY AIDS

some

a room.

Does he get

enough light to see by?

given a sheet of ordinary news- print of the type you are read- ing now, and asked to set the light to suit themselves.

The great majority plumped for 126 foot-candles. That is about ten times what they nor mally receive, A few wanted as much as 150 foot-candles; a few wanted as little as 20.

The light over your dining-room table

If you are an average man you have two 40-watt, Tomps in your dining-room.

If your table is four feet be- low, the maximum illuminativn immediately below in six "fool- candles."

cet

In an armchair a few away It will be as little as one and a half "foot-candles."

It should be at least six in any

part of the room.

A "foot-candle" is the light thrown by a standard candle one fool

car An ordinary nway. headlamp ans an illumination thirty feet away of about twenty foot-cundles. A lighted match a foot away gives a quarter of a foot-candic,

The question of industrial lighting is engrossing the ex- perts. It is a fact that if a light flickers at the same rate as a piece of machinery in moving, the moving machinery looks as if i were still.

This is called a "stropos- copic" effect. Such a flaw in the lighting might mean the loss of a man's hand.

LIGHT, like most things, comes down to a brute question of pounds, shillings and pence. It is impossible for the huge majority of us to equip our desks with 125 foot-candles. But we can do the best we can with the money we have,

First, we can have shaded lights, even if the shades are plain white. But they must cover the naked light. Second, they should direct the light, or some of it, to the ceiling..

Third, we should have both a centre light and a local light in the sitting-room. The local light should be set in a corner at a height to give its best effect.

But artificial light! A surgeon co-operation. Were a serious operating in a theatre brilliant effort made in this direction,ly lit may work under 500 foot candles. A draughtsman, using many of the major problems of rules with minute figures and the world would, without ques-ruling lines that must be ac- curate to the fraction of an

The test is not an absolute tion, disappear, not excluding inch, works quite comfortably

one. A man might well like a of the grievances under under fifteen foot-candles. A brilliant light for a short time man in his home, reading a and find it trying for a long which certain nations at present pamphlet critically, uses a lamp period; but it is an unmistak

Fourth, if we have special Mr. Eden was able to giving on his book perhaps ten able indication that the present suffer,

foot-candles. A woman, sewing

work to do and sewing ranks as special work if lighting is under show that Britain had provided with black thread on black usage is far too low for natural

requirements.

consideration-we should be sure an example in the recently.material, gives up the best place

under the light to the boy doing Other tests made both in

we have enough light for the concluded three-power mone-his homework, and strains her, Britain and America show that

task in question. This is dis- the amount of light available

covered by an instrument called tary agreement, and he assured eyes under five foot-candles.

has a direct relation to the Twenty-five years ago people amount of work turned

The question of g'ure is far a photometer. It consists of foreign statesmen that she is

were doing the same work under within certain limits, the more reaching. A. W. Beutell, one of cell sensitive to light, and marks prepared to follow this up by one-tenth of the present the light the more the work the most eminent of illuminating up in foot-candles on a dial the helping to create international illumination-and doing it, ap Also within certain limits, the engineers, considers that in the exact amount of light falling on

it. parently, without complaint.

more the light the less

interests of eyesight highly conditions in which all nations Half a foot-candle was con-

Fifth, when installing new fatigue. It has been calculated will have greater économic op-sidered enough to read by!

that if there is only a 20 per glazed paper-which acts as a light, we should consult an ex-

poor surface for cent. efficiency of light, 45 mirror-is a portunities. But Britain's help

lights and the strength of the units of energy are wasted; print. Reading matter should, pert both as to the placing of our There is a definite when lighting is 100 per cent. he considers, always be printed bulbs we use. of on a dull surface.

formula between the watts we efficient, only energy are wasted..

Another practice all experts use, the amps we burn, and the A man reading in a light of are unanimous in condemning is fool-candles we got. There is one foot-candle is four times as that of lighting a desk brilliantly another formula. between the mentally and physically tense and leaving the rest of the room distance a given light is from after an hour as a man reading in darkness. The strain of ad- the thing we wish to see and the by a hundred foot-candles, justing the eye from distant amount of foot-candles of light

darkness to immediate light and we get on it. back again is too great.

in this direction is conditioned

on

EIGHT thousand people a determined effort being,

have recently been made to reach an armaments subjected to lighting tests at Home. They were given it agreement. In view of past graduated series of lamps with failure to get a world accord on a range of between zero and disarmament, the question im-1325 foot-candles. They were mediately mises às to the pros

in any new pects of success

limit to unilateral denunciation.

of

ten units

out.

the

care

It has also been found that

All these points we can look. old people need more light than

A third question is the one of after, without expense, and with young ones. The pupil of the effort made. Conceivably, in One of the chief sources

trouble in international affairs eye gets smaller with age, and lighting staircases and corri- enormous benefit. Such view of the promise of a world-

latterly has been the tendency consequently needs a more in- dors. People come out of a may save you from buying a tense light to do the same work reasonably lit room and go down now and stronger pair of glasses; wide economic understanding,

of States to denounce treaties that a younger person, with a a staircase with very little or no it may save your wife from u nations which are now arming when it suits their purpose 50 pupil absorbing

series of headaches; it may save more light, light:

your child from having to wear to the teeth might see the folly to do. Sceptics therefore may could do easily with less,

glasses at all. of wasting their substance in well argue that an arms under-

rivalry of this kind, even to the standing reached to-day might point of agreeing on certain fixed armament limits. But then there cames into view the precise value which could be attached to any such agree- ment. Mr. Eden has laid it down is essential that there

THERE are other things |be repudiated to-morrow, under

to be considered be- changed conditions. It is this

sides the mere quantity of light. contingency which cannot be There is the question of glare.

Six hundred people died from falling on staircases last year, apart from non-fatal injuries.

three

in

Light, the best light in the highest quantities, will never remedy genuinely defective eye- sight, but it will help not to spoll STAIRS need at least naturally good eyesight. It will

or four foot- uiso arrest deterioration overlooked. And, unless some Gas experts and electricity candles. Bedrooms need at least eyesight already weak. method can be devised for as-experts are alike emphatic that eight foot-candles with local

So our cry should be that of suring respect for a nation's such a thing as a naked light, lighting for you to shave by or Goethe, whose last words on his

brilliant, is a your wife to powder her nose by. pledged word, there seemis little no matter how

wicked thing.

Your kitchen should have eight deathbed were: "Light, more: to hope from any new

It is better to have ten foot foot-candles with a local light light." treaties entered into, and he

formula which may be devised candles coming from a properly ուղ condition procedent to shaded bulb than 100 foot STORE OPEN FROM 8.30 a.m. to 6 p.m. SATURDAY to 5. p.m. adds point to his remarks by

saying that there must be a world economic readjustment.

candles that give glare,

LANE,

PERFUMERY DEPT.

CRAWFORD,

LTD. must be a willingness to observe

17s

if ironing is to be done-the Guy Ramsey

strain of seeing a blemish on a light surface is considerable.