A SIMPLE OPTICAL DEVICE FOR DEMONSTRATING THE CONIC...

School Science and Mathematics 1941 Vol. 41; Iss. 9

A SIMPLE OPTICAL DEVICE FOR DEMONSTRATING THE CONIC SECTIONS

Everett H. Hurlburt
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Volume:
41
Year:
1941
Language:
english
Pages:
4
DOI:
10.1111/j.1949-8594.1941.tb05523.x
File:
PDF, 133 KB
english, 1941
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