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redshift

phys. Decrease in the measured frequency of light (or other radiation) from a receding source; called the red shift because the decrease is toward the low-frequency, or red, end of […]

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redundancy

phys. Repetition of information or inclusion of additional information to reduce errors in telecommunication transmissions and computer processing རྒྱང་འཕྲིན་བརྒྱུད་གཏོང་དང་གློག་ཀླད་ཀྱི་དབྱེ་སེལ་ཁྲོད་དུ་ནོར་འཁྲུལ་ཇེ་ཉུང་དུ་གཏོང་ཕྱིར་ཆ་འཕྲིན་བསྐྱར་ཟློས་སམ་ཆ་འཕྲིན་འཐེབ་པ་ཁོངས་འཇུག་བྱས་པའི་གནས་སྟངས་ལ་གོ

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reflection

phys. Return of light rays from a surface in such a way that the angle at which a given ray is returned is equal to the angle at which it […]

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