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— Francis William Aston"It has long been known that the chemical atomic weight of hydrogen was greater than one-quarter of that of helium, but so long as fractional weights were general there was no particular need to explain this fact, nor could any definite conclusions be drawn from it."
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Action leads to Attention. that in the short-term releases Rewarding brain chemicals and in the long term improves reproductive success.
— Keith Henson
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You had to be aware that I saw that photography was a mere episode in the history of the optical projection and when the chemicals ended, meaning the picture was fixed by chemicals, we were in a new era.
— David Hockney
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