Word: lensed
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Dates: during 1930-1939
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...this brief performance the camera records 20 successive stages. The film runs continuously at crankshaft speed-up to 250 m. p. h. Light from the explosion passes through a heavy quartz window in the cylinder head to a stationary lens, thence to a series of 30 rapidly moving lenses which follow the film and hold each image motionless on it during exposure. The spark is seen first like a lone star in a black sky, then a flame front spreading and backwashing around the base of the chamber. At one stage back pressure was observed to make combustion-produced carbon...
Then Dr. Filatov cuts two short slots in the opaque cornea, one on each side of the hidden pupil. Through those slots he slides a thin blade of ivory. This protects the patient's crystalline lens and prevents aqueous humor from escaping when Dr. Filatov cuts out a small...
Leukoma is opacity of the eye's cornea, that transparent coating which shields the iris and the pupil and is supported by the aqueous humor. Immediately behind the iris lies the crystalline lens, which focuses light images upon the retina. Leukoma may occur when the cornea is struck by...
Thomas; Editor Kenneth Wilson Williams of the Eastman amateur publications. Mmes Roosevelt and Post were unable to attend the final judging, but the other three took their work seriously. For two solid hours newshawks waited outside glass doors while Inventor Maxim gesticulated with his glasses. Lecturer Thomas propped print after...
The planetarium idea originated in Germany and the complicated, costly ($120,000) two-ton machine which projects the celestial images is manufactured by the Carl Zeiss Optical Works at Jena. This consists of two lens-studded globes mounted on each end of a cylindrical frame eleven feet long, is shaped...