The Technical World Magazine, Volume 15Technical World Company, 1911 |
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Page 218
... light . Consider the necessarily evil effects upon the eye - sight of these children . THE SAW - TOOTHED SKYLIGHTS WHICH ARE PARALLEL RIDGES RUNNING. 3840 stant and serious abuse - and this , too , among children who have no means of ...
... light . Consider the necessarily evil effects upon the eye - sight of these children . THE SAW - TOOTHED SKYLIGHTS WHICH ARE PARALLEL RIDGES RUNNING. 3840 stant and serious abuse - and this , too , among children who have no means of ...
Page 219
... light as is the human eye , after which it is patterned . When the writer asked his photog- rapher to place the camera in the posi- tion required the latter demurred , declar- ing that it would spoil the picture . Photographers well ...
... light as is the human eye , after which it is patterned . When the writer asked his photog- rapher to place the camera in the posi- tion required the latter demurred , declar- ing that it would spoil the picture . Photographers well ...
Page 752
... light upon the top of the pole where the lineman is working . The photograph shows the light in operation . A 25 candle power Tungsten lamp is used with a parabolic reflector , the lamp having a spiral coil filament which makes a ...
... light upon the top of the pole where the lineman is working . The photograph shows the light in operation . A 25 candle power Tungsten lamp is used with a parabolic reflector , the lamp having a spiral coil filament which makes a ...
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