The Bent Pyramid of Snefru in the Dahshur Necropolis. DeAgostini/Getty Images At the necropolis of Dahshūr, an ancient Egyptian burial site on the west bank of the Nile, stands an odd-looking pyramid ...
A pyramidal prism/angular cube reflector is always used to reflect a beam of light into the prism, regardless of the direction of the beam. Corner prisms are widely used where accurate alignment is ...
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