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Scientific

Scientific image
Parent Issue
Day
21
Month
May
Year
1880
Copyright
Public Domain
OCR Text

Enormous deposita ot' ii-on oi-e of tho 'j(St quallty mnoug i)u forma on tho O'iiu Uivc'r about eljht milos ft-om Pittabui'ï luis causcd a graat oxeitoment in that welon. Lnnd has risen to tïibuluus pricca ii gome iiist:muos. Tlio rock of the fainoiis sonp mino neiir Elko, Nev., is of a soft mlclish oast, greasy to tlie touoh, and ín water s.tfiks into :i pulp, vcry niucli like custile soap in appoarauoe. Jt contaius silioatc of ahniiiuii, oxido of iron, boracic acid, magnesia and mtive silver. On the allanto troes of Japan, planted in l'aris, there h;is boen disoovered au insect, black irtd gmy in thits and ofcocoon cbaracter, from the vrub of wliich has been produced and spun a beautiful, soft, lustrpus anj lihtecrutiiilcd silk that is stronij, cíioap aud gtylish. A correspondent of an En.'rlh - eu tifie Journal claims to have cit iiiow applicatioii ofniftgnotlc t tricity, by wliioh the miiid oi'a paticnt lias aequired t!ie power of appareutly ! releasing ■ itself l'ruin tho trniuiuuls of! matter, and of transportáis itself to places distan t lVoni body, which ] reinaina in a coudition of repose, j semblinjf the etlect produced iy j t.hotics. Whilst U Uilcr thia electric influenco (the maiinor of which is not diaclosed) the mind can be directed to any spot or secue, and is susceptible of i the same irxipreesions and couditious I as would bü expericueed in the persoti of the patiënt himself. Sceneii thus : vislted and impressioni thus received are not only quite accuraie, but the patloilt, wheu rclcused li-um tlie ■ trie iuttucuoe, is said to retain a perfect remuuibrancii of iuioruuiiioii so acquired. Scientific discoverors may beeonsidcred t'ie most practical men in existence, but it was thrce Inmdred yeurs belbro the furm of pin introduccd for the benefit of the infant portion of thu ' community was iavented, alter the ordiuary pins were introJueed. No one wouid imagine that this iufantile pin - a wire poiiitcd at one end, and i ltingly twisted, so tliat one end serves ! us a siiield ton Uie point of the pin - involved invention, aud vet, although tlie need ahvays existcd, it was nut until soiuo happy thoiuht brought it to the mind oí sume lucky inventor tliat it was brought into the world. Agaiu, there wera unce eighteen operations to be poi'lormed in Uienianuiacture of pias; twelve pounds of pin VTere made in a day, but iuvention has produced a machine that turns out 160 pin.s a minute, anti puts thein ou papers without the aid of human hands. Judpe Longworth, after months oí' experimeutiiy discuvered the procesa nse'i by i few Old World photographers in the preparation of sensitized or dry glass p lates. The value of this happy resuU eannot be overestimated. By the inothod referred to the amateur or landscape photographer eau now prepare the plates at homcinany nuiubur desired, stuw away in a valise, and taUing' with hilll a portable camera aad J'oldinj uipod, start out on his labors unincumbered with chemical bottles and ollier endless tupplics. Another una vcry important aUvButage arisiug lVum tlie discovery is the fact that negativos can be taken iiistaütanoousiy, tliojude mtvinz seüured laul tiesa pictures ot sailing boata in motiou. Landscape VieWS by this nioans do not pO8sess tlic blurrcd luuk occasioned by tho restleM Ibliag-e. Tlie artist now in his country nunbles, wiion íiKiotiny with a bit of scenery cspucially plaaing to tlie evo, can set the tripod. placiitg on it tlio oamora, draw the sliclo, raise tho curLain, lut it ia.ll, aud tho vrork is done. ïhe plato is then placed away in darkuoss úit troatment on reachiug home, and thc artist, witli a loss oí' but three minutes' timo, moves 011 to otliw scuucs.

Article

Subjects
Old News
Ann Arbor Argus