Nature has put itself the problem of how to catch in flight light streaming to the Earth and to store the most elusive of all powers in rigid form. The plants take in one form of power, light; and produce another power, chemical difference. (Julius Robert von Mayer)

Nature has put itself the problem of how to catch in flight light streaming to the Earth and to store the most elusive of all powers in rigid form. The plants take in one form of power, light; and produce another power, chemical difference.

Julius Robert von Mayer

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catch chemical difference earth flight form light nature power problem produce rigid store streaming take powers

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