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Show I ' !' ii ' 'S How Far Sold,era Can Soe B hit !tt Somo Interesting experiments havo- B t f ' 'tf boon mado In tho German army with B k HA ' X tllD olj'cct ot discovering at what B ill dlstanco tho recognition of ono soldier B'l T hy nnothor ls rcltablo. For soldiers B r W' ' I "'"' Kl1 oycs ll wns f0UI1(1 that a B t K person seen onco beforo could bo rec Bll Wt ' ognlzcd at a dlstanco bf 80 feet, whllo B i S - r an nctH'alntanco could bo rccognlzod Bii! 'I I ' ' nta d,stallC0 of 300 foot' and an In B I- $' 'v tlpato friond or rclatlvo at a dls HJ i w, i : tuhco of 500 feet. HI ilf Tho various parts of a man'ti body B j cai1 ho distinguished and any decided B r hv ' '' mpvement can bo detected by an es BlfrH' )$ pert rldoman at a dlstanco ot .100 feet. Bm W- f A 1,80 foct' n man air,cars na n B 1 aK ' t BI)0t' " tno an(Bcapo and cannot usu B' I SB' '' ally 10 Bocn If 10 ,:cIs 8tl11 or lf his B i i wt r dross docs not contrast with tho back Bl Br ground. Sailors, hunters and farmers BJ ' v can 'usually soo twlco thoso distances, B''j ' i!r? ' l probably on account of tholr constant B' itil ' training In making out tho naturo ot HJ 'i I V i distant objects. |
