| 31. | Submarine photometers can operate at depths of and can record visible, ultraviolet and infrared parts of the spectrum.
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| 32. | Mims'original LED sun photometer ( placed in service during fall 1989 ) is in his left hand.
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| 33. | The photoelectric photometer and the Boller and Chivens spectrograph have not been in use for more than a decade.
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| 34. | With a new design of photometer, he was able to measure the exceptionally faint stars in these clusters.
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| 35. | NIPPS ( Neutron Induced Prompt Photometer System ) allows the non-intrusive detection of illicit and dangerous substances.
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| 36. | In 1932, Leitz pioneered a fluorescent microscope, and three years later a photometer developed by Max Berek.
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| 37. | Whitford was best known for his work with an instrument used to measure the intensity of light, the photometer.
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| 38. | Two photometers were on board for measuring solar radiation ( ultraviolet and x-ray emissions ) and cosmic rays.
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| 39. | These instruments include audio oscillator, attenuator, stroboscope, photometer, colorimeter, algesiometer, algometer, and olfactometer.
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| 40. | His silver tester, photometer for pigment printing and heliotype printing, and universal spectroscope were introduced into general use.
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