A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 643
Fig. 573.- -Principle of the range-finder. … Fio. 574—Principle of the Barr <fc Stroud range-finder. to a carrier provided with a scale S, and the scale is at the infinitymark as seen by the left eye looking through E at the fixed mark i,., lien AB and CD are parallel. When the object is not at infinity, the rays AB and CD from itare…
Physics
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
