Show lya POPULAR SCIENCE 1 ical education an and d trade jelon tee of the influence of the trade baa has upon education teeb tec uita al much discussed in eng land lat atly been the resident president of tho the society chem chemical cal Ind industry astry in liverpool 1 I why let eone some of the reasons ies es rapidly aa aft advancing so is I 1 now fal superior economy tiler Jq julous lous I 1 i s attention to detail 2 the baes ous number of men inen on of a large trained S nt not only technically but lib trally sv 3 A close alliance of leg lealla lla and of science with ith the interests tirade 4 A national system of alsys railways and canals 5 cheap auli S 4 labor working long hours 6 A apply of unskilled laborers urge aready trained to habits ot at order and discipline by army service 7 protective 5 tariffs 8 A good system of pat at nt lawa laws lie ile proposes these remedies for england 1 the appointment ot at a minister of commerce com merco 2 the nationalization of railways and an can JIL g 3 the extension and improvement of secondary education 4 A reform of patent laws laus the question discussed la is acute in england and not without interest in america the remedies proposed are not at all needed here and to some of them a least consent could not now be obtained stare stars recorded bv by photography the number of ato stal tre recorded corded on a photographic plate de depends not only on oil the region of the heavens to which the telescope Is directed but on the length of exposure at the bonn observatory lerv atory a map of the northern he heavens arens wa was made showing every star visible in a small telescope of about three inches aperture if we call the number of stars shown on this thi map unity the greenwich photographs with an eleven inch tuch telescope that in twenty seconds three ind and a half times as many stars are recorded in six minutes fifteen and a half times as nian ruan and in forty minutes es seventy three times as many by increasing the exposure more aars are visible but the in crease Is net not indefinitely great so far aa as these observations go they how show either that the cumber rumber of stars la is not infinite or abat the light of stars Is 1 absorbed in space clock in an electromechanical clock the combination with a clock train of a 2741 bit 40 46 10 0 10 1110 13 it 12 so 44 to Is ll 11 I 1 6 ro ir 22 30 3 0 34 38 41 40 armally u stationary contact arm means for actuating said arm from mil clock train at predetermined in 3 a plural plurality ltv of contact pins in the e nth lath of eald said arm an electric bell in ill cinalt with said contact arm and pill una whereby an intermittent alarm Keoun is sounded ded at predetermined interi Inte nale als thornas E heeter at st louie louis mo Is the e inventor jewelers circular the question of fuel every awe one ls is albiar with discus it ons 0 aam the late at which the worlds coal supply is beng exhaust d an fn attention may be u cabied to 0 o the S or of wood systematically sh d for fuel helmholtz elm holtz snow 14 eu that t in germany tho the if thermal vaire the bable lege vegetable ea table ble growth on a elven given alft y of 0 the thet didat land Is tt about I 1 7 part of 0 delivered by the sun to the in o jimb area ta R planting rapidly giva gi ow germ er ln in tropical 1 countries the rate can be tl about tent left of f birnes ea ohp so 80 that about one e per P 1101 bronts he the e annal energy po jd i zd st d land by the sun may y bo as wood 00 fuel taking forest tore acres of land as available for it floii 1110 that a oar fuel product or of thirty ty times es Pre present anred L coal 1 supply might be 1 an to and nd no rno boeer eer reoler Is it hopeless to expect that t a way will L be store re the 1 l from aro energy dally re vilta the sun and to do ful 1 I a itoI away 7 A german G er 0 egg 9 testing 1 method red genius says 9 be he bud dis allt tl it lt a method od by which he be can fro the theia ae of 0 an 30 egg alp to ave weeke weeks time of hatching hatchi indicating or ro 60 aua but whether the egg e is 1 fit t to eat S purposes durdel also tetla tet lg eg eggs for forba hatch teb aall an noih mt 1111 ch more accia 1 w rufth na be done 0 0 by ule the ads candling L in herewith the ls Is given an a illas 1 I I 1 apparatus which I 1 i ka he use uses ana and also the complete formula for the liquid in which the teats tests are made as agten in the patent papers filed in thia this country the liquid ought to bo be about 1035 weight eight and ie 13 composed of one liter of water ty twenty enty five grama grams of ordinary salt eighty ave tarns tama of at glycerin of about 28 23 decrees daum and one gram of concentrated salicylic alcohol A fresh egg it la Is stated will go to the bottom of th n and lie there in an almost horizontal position an egg from front three to five ave days old will be at an angle of about twenty degrees an eight day old egg etli describe an angle of forty five de grees a fourteen fourte enday day egg of sixty degrees and a three week ege will graduation linea lines indicate age of egg lake take a position corresponding to sev enty five degrees an egg four weeks old will baand upright on an its pointed end an egg of five weeks will be sus lix ili the liquid and an egg beyond that age or a foul egg will afim on cr near the surface of 0 the liquid if these statements prove true this apparatus will prove to be useful for cooking preserving batching hatching and all other purposes the glass face of the containing vessel Is graduated to indicate the above mentioned degrees remarkable discovery discover A somewhat remarkable discovery has been made by dr wolf of heidelberg he lie recently photographed boto graphed a nebula in the constellation cygnus and the picture when developed fill followed owed a really striking resemblance in to the map or north america the nebula represents the continent nen t and the dark background of the heavens the ocean surrounding rounding aur it the nebula garrova just as the cacti nent does toward the south and has a gap corresponding to the gulf of aiex ico ica there Is also a curve representing the coast of central america dr wolf wait was so struck with tho the likeness that he named it the Amer american icari nebula electricity Electric kyo the latest word mord on electricity is fig to the effect that it Is a material substance its unit the electrons elec trone forms an infinitesimal part of 0 the atom of an element and when split of off f it produces a stress in the other similar to that due to negatively electrified body the severing of the electron from its atom is tho generation of electricity it the remainder of the awn acts aa as a positively charged body but it la Is not certainly known whether the positive electron supposed to bo be about ten times aa as heay heady as the negative really exists oil burner for stoves in these days of worry norry over lack of fuel when people are wondering hov ho they are to heat their buildings an and cook their food numerous schemes are being proposed in solution of the problem among these e institutes for coal one of the most prominent and success ful Is petroleum and it Is n special tow of burner for this which la is pictured below the originator of the invention being elmere stewart of los angeles cal the claim is 1 made that this burner can be used in connection ith a cooking a or heating stove hot air furnace steam and water heating system steam boll er or hotel range giving a strong hot flame name without danger of explosion the burner humer Is co nursed cosed of two separ ate aarts one resting in the and the other forming the lid to re IV fed from supply tank place the ordinary cover of the stove store the lower section baa bag a central cone rising riein from a fiat flat base with a sar our rounding flange range high enough to pre vent gaible paible pa Ible 11 overflow flow of the at oil into the beneath the cover has a central depression with a perforation of f sufficient size to permit the dropping 0 of oil through 40 on the apex of it cane beneata bene ain |