Page
SCIENTIFIC MISCELLANY.
10 FLY DIRECTLY UPWARD..
Thyropter of G. L. O. Davidson, a nev. kind of flying machine that has resulted from
• JAVA'S-FLYING FROG,
** HONOKONG DAILY PRESS. SATURDAY, DECEMBER 3RD; 191.
membranes between the fingers. It is like the chameleon, however, in its colour ohanges. It feeds on insecta, romsiis. quot in bushes by dny, and when disturbed glides away to quite a distance.
Thors are flying frogs as well as flying Benirrels und lying fishes, and all use a kind of aeroplane for making short flights. The flying frog of Java hes been described by 'ref Siedlecki, of the university, of Cramo, under the pains of Elypedates reinwardu. years of experiment in America, has on ecIt is waally beautiful green in colour, side of the main body two esta of three wings, with white belly, and orange-yellow soaring with a revolving horizontal lifter er gyroptor, between thesO FO`R. The machine that has been building near Taplow, Eng., mesures "66" feet in length and fost in extremo width, and will be driven by two 60-herse power steam engines, working with a pressure of 800 pounds per square inch. Enosh of the two gyropters, skopel like no inverted saucer, is a wheel 27 feet across meile up of 60 full-length paddies from the centre, with 60 half-length paddles toward the circumference.
The bird-liko winge taper toward the rear, and have adjust- -ablo tips. The machine, with a weight of 6 tons, is expected to Have a fling effect of 10 fona. Very smail inclination of the gyropters. will give a forward and upward or forward aud downward motion, and a tail and front vortier) rudder will aid in steering. The body is large enough for several persona,
-
SURFACE HARDENING FOR CONCRETE. The rapid wering of dust from coment.con- -crete floors suggested to Albert Moyer on experiments with protective, coatings As reported to the American Society for Text ing Materials, the paints and protectives, ou the snarket were found to. form only a thin vonoor, „bat several applications of dilute woter-glas (sodium silicata) filled the pores near the surffes, forming, with the lime of the cement a kind of marine glue," and hardened the concrets itself. This choap ap. plication seems to be valuable for many uses It strengthous concrete already sat, and not only makes it more darable, but gives it ro sistance to sea water, deidę, ulkaļies, and other chemicals.
THE FARADOX OF ROENTGEN RAYS.
Whether X raya bencfit or harm may depend on the doss,, II, E. Schuldt finds that a mild application may stimulate a sluggish ulcer to Beal, but the wild treatment would stimulate
also the undesired growth of cancer, which needs n powerful dose to destroy the inferted issue
AN IMPROVED MICROPHONE,
ANTS ON MAN'S SERVICE.
of aan in the Orions, where it is made to olcan The industry of the nt is applied to the uso anndalwood The swool and soft extachal cover- ing of the wood is worthless, but the legs on the ground quickly attract an army of sets, which remoro the waste-layer. The valuable hard portion is then ready to send uway,
“THE CORONATION.
- Juse 22 rixED,-|
A Supplement to the "London Gazelle, issnod last mouth, contained the following:
BY THE KING.
A PROCLAMATION.
For appointing a Day for this Colubration of the Solemnity of the Corsuition of their Majestic, GEORGE RI.
Whereas, by Oar Royal Proclamation boaring date the Nineteenth day of only last, We did (mengat other things, publish and declare Our Royal intention to celebrate the Bolemnity of Our Royal Corenttion and of the Cmonation of Jur dearly beloved Consert the Queen, upon v day of Juno next 10-b thereafter determines, at Our Palace at Westminster; and whereas We Late
resolved, by the favour and blessing of Al- mighty God, to celebrate the said Solenuity upon Thursday, the Twenty-Second day of Jane next, We do, by this Our Royal Proclamation, give nolics thereof, and Walo hereby strictly charge and command all Our loving subjects whom it may concern that all persons, of what rank quality soever they be who either upon Out Letters to them directed, or by rosson of their olices and tenures, or otherwise, are to do ney service at the time of Our Coronation, do unty give their attendance at the said Solemnity on Thursday, the Twenty-second day of Juns nort, in all respects farnisted and sppoluted as to so great a Solemnity appertainoth and answerable to the diguities and places which every one of them respectively, holdeth and enjoyeth, and of this they or any of thom are not to fail, as they will anewor
wer the contrary at their pavils, voless upon special reasons by Oarsulf under Der hand to be allowed, We shall dispense with any of their services or attendanaos,
Provided always,
always, a We do further by this The now microphone of C. Lorenz, of Ber-Our Royal Proclamation signify and declare, lin, makes use of a substanes that is heat resist. that nothing herein contained shall be consirard
to change or alter Our Royal determination a ing and a good condustor of eléctricity, yet is
mom fully declared ju Our Royal Proclamation very sensitico to variations of electrical resist bearing date the Niustenth day of July last, Hitherto carbon has given better results wher by We did ainly it to be Our Hoyal Will and Pleasure upon the occasion of this Our than any other solid for malerophone contacts. Coronation to dispense with that part of the bnt this material has the disadvantage of be. Ceremonial which in times past took place in ing gradually redneed to ashes by the electrio Westminster Hall, and that part theroof which current, lessening the microphone's oficiency, consisted of the Procession. With high tension currents, the carbou, bas beon need only with difficulty. When carbou is raised to inpandesccavo in an atmosphere of highly hosted silicou rapour, carbon sileide--of ailundam-is formed, and this refractory substance has proved very serviceable in the new instrument. Speech, is transmitted more efficiently than with other menus, The silun- dum is not only suitable for ordinary micro- phones, but retains high efficiency in micro- phones operated with surronte of extraordinary- intensity. It a conveniently produced in the form of powder, granules, globulos rods, ote., and even as diaphragms for the microphone.
anca
---THE-POLE'S WOBBLING..
Since the antemn of 1899 the slight shifting
of the North Pole has been observed closely at
giz stations around the world near the 39th parallel of latitate,. and Prof, Albrecht, Pots dam, has now completed a diagram of the Fole's wanderinge for ten yours, Up to the and of 1909 the mean position had been circled around eight and one half times in an irregular spiral qourse. The Pole was very moar its middle place in 190 reached a maximum distance away in 1903, and nesrly touched the contre again in 1906 and 1907. Its oscillation reaching another maximum in 1909, it kept about 30 feet away from its ceu- tral place during the most of the year.
́ ́AN AVIATOR'S WHIRLIGIG. The testing apparatus for Aging machine propellers erected by the Vickers Company at Barrow-in-Furness, Eng., consists of a whirling arm, 166 feet long, mounted on-ball bearinga in a cast-iron centre column. Mounted at the, longer on of the arm, the propeller, 110 feet from the most, is driven, through goers and shafting, by a 100 horse-power electric motor. The propeller, revolving 500 to 1,000 times per minute, aan drive the arm 70 miles an hour.
THE FLOW OF MADLE,
Under the pressure of the overlying weight, -rocks at a depth of a few miles bosome viscons, and are ready to low like tar on removal of the pressure from any side. The flow may be shown even under artificiul pressures, sad in the ex periments of Prof. F. D. Adams and E. G. Cokor, marble has been deformed and mended with interesting and curious resalta. A cylin der of rock 4/5 inch in diameter and 1/13 inches long-was-itled-closely into a Leary tube of steel, and pressure. was applied through pistons of hardened chromium. alumfuam-tungsten steel. A Linner central portion of the tube permitted lateral expansion, while a temperature up to 1,000 deg, could be applied by heating the tabe in a stove. With pressures usually between 120,000 and 130,000 pounds per square inch, the rook was pressed
of shape--sometimes rapidly, sometimes slowly, the time taken by the change ranging from 10 minutes to 6 days. Under 296,7.5 pounds per square inch, a column of marble 1 inches long and 3 inch in diameter won' shortened to of an inch, expanding into a birrel-shaped mass, 1 inches in diameter at the centre. The deformed marble developed a fine follated structure with no trace of granula. Lion. Curious results were that water had no! apparent influence, and that specifio gravity was not changed.
Given at our Court Saint James's, this Sorenth day of November, in the Year of Our Lord One thousand nino hundred and ten, und in the First Year of Our Regin.
GOD SAVE THE KING: «
Indigestion
and
Catarrh.
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NEWBRO'S HERPICIDE
IS THE ORIGINAL REMEDY THAT
"KILLS THE
EDNA D. ALLEN.
W
DANDRUFF GERM."
ITHOUT dandruff the hair must grow luxuriantly, except
in chronic baldness, which is incurable. contagious disease caused by a germ or microbe.
Dandruff is a
Το
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A WOMAN TO BE PRETTY.
A woman to be pretty must have pretty hair. Beautiful locks have a subtle charm, for the poet says, "fair tresses man's imperial race ensnare." The unpoetic and intensely real dandruff microbe makes the hair dull, brittle and lustreless withi later dandruff, itching scalp and falling hair. Newbro's Herpi- cide destroys this enemy of beauty and enables the hair to resume its natural lustre and abundance. Almost marvellous results sometimes follow the continued use of Herpicide. Overcomes ex- cessive oiliness and makes the hair light and fluffy. It contains go grease or dye. Stops itching of the scalp almost instantly,
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"I have found Newbro's Hergicide excellent for the hair The first application stops itching of the scalp and it leaves the hair soft and silky."
(Signed) DDNA D. ALLEN,
Byracuse, N. Y
AT DRUG STORES-SEND TOC. IN STAMPS TO THE HERPICIDE- Co., DEPT. N., DETROIT, MICHIGAN, FOR A SIMPLE SEE WINDOW DISPLAY AT
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SPECIAL AGENTS.
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HIS MAJESTY THE KING
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