Word: reflector
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Dates: during 1950-1959
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...fashioned squinting method is still a back-bone of current research, however, and to assert this view, the Observatory has invested in a completely redesigned 61-inch reflector telescope, originally built at Harvard...
...Observatory, it now participates in a cooperative plan with five other institutions to share the expense of maintaining an outpost in Bloemfontein, South Africa, one of the prize viewing locations in the Southern Hemisphere.A member of the Amateur Telescope Makers of Boston which maintained the facilities during war, prepares reflector from Pyrex glass...
Besides skill, the project demanded two weeks' time, 20 helpers, 70 reflector bulbs, two 30-ft., towers - and unlimited patience...
...Sight. An aluminum TV antenna that promises good reception to televiewers 100 miles from stations has been developed by the Channel Master Corp. of Ellenville, N. Y. The antenna is made of two newly designed high-frequency antennas, one on top of the other, plus a gridlike reflector for picking up TV signals. Price: $20.83 plus installation...
...material surrounded by a casing of neutron-reflecting material. When the ram rises, it slowly pushes its dangerous load against the base of another subcritical mass. When the two are joined, they are still barely subcritical. Then the machine pushes rods of natural uranium into holes in the neutron reflector. The reaction starts and gathers momentum until the distant operators, or the automatic safety devices, make Topsy "scram", i.e., pull the masses apart...