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The Heliograph

The Heliograph image
Parent Issue
Day
30
Month
July
Year
1880
Copyright
Public Domain
OCR Text

The London Daily Jfews totes thnt tliry have to thaiik the heliogropn a"-iiiii fov an important mossage woeivpd from Gen. Stewart, and aDiKHinoiriS! the rcsuH of an attiick on the British troops, in which the oneniv seemed to havo guffiired soverely. The message is dated Camp Ghuzni, April 22, aiid was reoeived at the ludia Office the next Uy. Tlie hcHograph doea not require the route to be kept open. ïlio line of conmiiinu'-iition c-iiinoC be ent, for the simple roasou tliat the si-n:ilin ■■■ tiikcs placo ovor tliu lieads of tho eu'einy, and the stations i-oqulred are bnt few umi for betweon. A ten' mch miiTor, airl Ulis is the diameter of tus ordiiiary field helio-rapli, is capable of refleetjuf tho sun's raya in the tonn of a bi-iylit spot, or Üin;, to a distauce of fifty milos, the gignal at this interval bein '■ reoogflizablfl without tho aid of a ■ ■las. T': is to s:l.v uvo u'ai"ci1 sappers, each yrovklcd Witü a inirror, ciiu rcadily spcak to another, supposin . the Kim is shilling, with au liitarvttf of flfty milos bctween thcin, proviiletl their stations aru siilliciumly hijííi and no rising ground iiiLurvenes to stop the mys. The aajustment of the uuliuu-y helio-rapli is a vei-y simple matter. Au ariny loaves Hs base wliere a UeliorapU suuion is locuted, and aftel1 tniveiuig soina miles üusii-cs to connnunicato wilü the stay-athomos. A hill in the locality is chosun and a sapper usceuüs wiui lus ueiio -raiih, WinoU is simpiy a stand in-Sa luirror swuu.; ilko tuo omiirary LoUet iuoKÍuji-íflttss, oxocyt Uiat bt gjaes swnigMig uoriawtauy it is ulso uiyoieU so us lo move verwcaUjr us wolu lieiihia tuo iniiTor in Umi vcry center, a littlo quicfesiivijr Uus uee i-ouioVlv., so uiat uw íupiMU1 can go bcIuikL Uw justruuieut auu loui Uirouli ;i uuy liolc in il luvvuixl tiio btiiliou ne dusiros to8iil. tiaviiig siuwa Uie Btatiou uy i.jiisLiiig tlm ïnii-roi-, lic ucxt prooueds to sol up lu li'out ol Uie uuHograpii ■ rod, n"d upun tUií roa is a niovaüio siud. 'i'lus btud ii niuiiii)u.iued libo me ioi-csi0ut oí a riño, una uie ripper auin, stanaiiig beliiua lus uisu-uuieiH, UireoW Uie aujuatuieut 01 tifia stuil mail t-iu lioio in me ïmrï-ur. me stuit, and tae Uistaut station uru'iu a luie. Xi{) uu.ionipa is tiiuii i-eaay tí) work', auJ iu orátsr lo ll.in Bigiiiiié so LuaL Uioy m;iy uu seen at a uii.aici', tlio saT "as only lo take care uiai lus 1U11TU1" reüccts tiie sunsiuuo 011 tnc stuü asi in iroiit oï iiiui.

Article

Subjects
Old News
Ann Arbor Argus