| 41. | Long wavelength radio frequency waves at 27 megahertz are used to process large amounts of food, at schools and other institutions.
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| 42. | Although the original observatory has been abandoned, similar research continues at the much larger Long Wavelength Array in central New Mexico.
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| 43. | The weakly absorbed long wavelength light can be obliquely coupled into silicon and traverses the film several times to enhance absorption.
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| 44. | The long wavelengths made these frequencies unsuitable for use in hollow metal waveguides because of the impractically large diameter tubes required.
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| 45. | The radio waves with their long wavelengths easily pierced the clouds, a feat impossible for visible light and its short wavelengths.
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| 46. | The case of the antenna coupling an object to the extremely long wavelength sector of the electromagnetic field, is completely analogous.
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| 47. | This made RDF much more practical, especially on large vehicles like ships or when using very long wavelengths that demand large antennae.
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| 48. | For instance, long wavelengths ( LWIR ) are preferred for outdoor operation since they are less affected by radiation from the Sun.
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| 49. | The exchange energy penalty associated with changing the orientation of one spin is reduced by spreading the disturbance over a long wavelength.
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| 50. | In contrast Long Wavelength magnetic transmissions ( below 1 MHz ) is not blocked or reflected by steel so nulls do not occur.
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