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Sentences with phrase «presence of ultraviolet light»
In the past, scientists anticipated Mars to have nightglow and previous missions had detected
the presence of ultraviolet light
.
http://www.ibtimes.com/
Not exact matches
He placed these compounds in a flask, introduced an electric discharge to simulate lightning and
ultraviolet
light
, and analyzed the resulting chemical mixture for the
presence
of
amino acids, the building blocks
of
proteins.
http://www.sciencemag.org/
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