Science.

Alexandra Herald and Central Otago Gazette, Issue 346, 25 December 1902, Page 7

Science.

I BY LIGHT? OP SUN. §gP^ pt JH.ACHTNE has been recently -st£jßkfi u harnessing the 'rays of the sun and making them work a steam engine.- A huge.'sun. raotorihasA Been. bniW which pumps %p : wateV f6r ifriga-* tion-purposes. The sun motor looks like an inverted umbrella, consisting of a reflector 83 ft. 6in. across the top, lined with rows.of small mirrors. . These reflect the sunlight, concentrating, it upon a" small boiler in the centre, in which steam is generated. - This, after all, is only a modification of the huge sun motor built by Ericeson and set up many years ago, tfce boiler in that cjsse being a "long.tube., runmngclongi-* tadinally with the mirror. Whether the heat from the Bun can compete with the heat from coal, from am economical standpoint, is, however, doubtful. On a cloudy day the sdn motor would have. to go out of business altogether.

f" f TELEGRAPHf ". f % 1 The reasbn'for Marconi'sigreatei* Buccep jqi wifeless telegraphy over sea than mis Jandfethat an'j£ opaqno "substance vwijl 'act as' a reflector for electric" waves, such as a wet duster or the. surface of water. The radiations that fall on the water are reflected upwards again, while of those that fall on earth some at any rate are absorbed. The range of the apparatus in South Africa was greatly restricted by the. dryness of the soil; all the wayea. that 'itduohed the earth were absorbed' the influence of the radiation died out very rapidly, messages could not. be transmitted ss far as was anticipated.

1 I fO, UNMOUNT PHOTOGRAFHS. [ | ;To jiuhniount photographic prints,' pint them'face downwards upon a clean board or on a glass. Wring out a cloth that has been soaked in water (preferably warm) so that'it will riot; Slip, and place it three or four folds thick upon the prints. It should 1 be so folded that its size is just enffioieat to corer them. Fat another piece of glass on the top, and then a weight. Leave the whole arrangement, for several hours, until the .mount is damped right through, when the "print will come off nicely without damage LONG DISTANCE HEATItfG. Germans are blasting- fthst f t|here r -ia! nowhere in the world a building similar to one which was recently erected in Dresden. .: In this novel building is an immense furnace, from which heat is supplied to several public buildings in Dresden, including the royal castle, the Royal Opera House, and the police headquarters The heat is convened to these buildings through pipes, and in some instances the distance is so great that the furnace has been popularly dubbed ' the long-distance heating apparatus.* '■'■ This plan of heating large buildings is said to work admirably, and arrangements >are now bfiirig' made; to establish similar faraacea in ether largo critics «f Germany. EDUCATING OURSELVES IN L BEAUTY'S SCHOOL/ I started out the Ist ojf ■ January to'iuake myself Beautiful, for ? after having read articles in nearly .every magazine and paper on how to 'Eduaate Yourself in Beauty's School' I was almost led to believe that even an old maid could Boon blossom like the_rose ifshe.w?re willing utoiry.-. •"-. 1 /. '}■ .'■'""'. ■.■ .:' H v£ My dressing table has been loaded with bottles and- boxes, while)my ; pocketbook has felt lean many times because there was always some trifle I must have to aid me in my work; >••' . ' : - i« *

This afternoon I've been giving .myself an examination*, after my three .morithsf; "trial, and to be very honest; Ijp niyself looking and acting very much the same as I did when I began.; It; does . s6e.m* hard after all the trouble Pve i>akeß,'bufc I fear it's ' o use for me to try, ..and, Tye. about decided to'stop think ng riDout-my- 5 self and be as happy; as I can; looking the way the Lord intended I should. • ......From the.,yards -■■, of newspaper*-and magazine articles published every week one in made to think that all can be good looking if they try a lotion ot two &nd|||g few exercises, JThis'" may' betttrue, mm certain it is therg are ss-inau|r viewXjei| the subject one is puzzled||o fegLOw is the best. After having tried first one, . then another, and iff the end seaing no change for the better, we settle down deciding our png noses never ;can] be like the true Grecian or thin lipsf oldba'ck like.a rose petal. boxes, and exercises the four Winds' wo decide history, science, and literature are more in our line, than..'Education in Beauty's School.'. , Do not understand me! I believe most heartily in good'healthy exercise, with plenty of sleep and nourishing food, and in every woman's trying to look her, very' t best at ail tuneß&nd }n all places, |bjr| do we improve our looks tfr manner (knfc stantly seeking for something to make'us appear different frem what we really are P I am of the belief also that thinking so much about ourselves makes"ua-selfish, and we spend so much time in looking for other people's imperfections we forget that after all it is brains that count.

-This is an; age of fads', and to be up to date we must follow them more or less, but whenSwe.- get so far advanced in beauty's school that we are not able to go on a pleasure trip without wondering every three minutes if we're walking correctly, smiling so aa not to maka wrinkles, and holding ourselves with that Hobe-like.;poise so ; becoming to women then is the time to call a halt, get out out Emerson ;an<l read what 'he says about beauty: ? There is * eonfplexions, or form, or behavior like the wish to scatter joy ; and not pain around us, and character will in time model the face into something nobler and more winsome than mere beauty of features.' So some of us, though we may not succeed in the external part of-beauty may be able to win some small degree' of success by internal applications. Bbtst 'Pais- 7 --..-' r , f ; x 3 '.fe-