The six-cornered snowflake (Kepler, Johannes) - Journal of Chemical

The six-cornered snowflake (Kepler, Johannes). Janet B. Van Doren. J. Chem. Educ. , 1967, 44 (5), p A476. DOI: 10.1021/ed044pA476. Publication Date: M...
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BOOK REVIEWS eral, including those who have made a special study of the history of the beginnings of what used to be known as modern chemistry, though with the rapid changes now going on it is difficnlt to state what is modern and what is old-fashioned.

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