— Light travels at tho rate- of 286,400 miles a second; eloclridly at the rato of 231500 mileci,
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Bibliographic details
Otago Daily Times, Issue 14457, 25 February 1909, Page 8
Word Count
17Page 8 Advertisements Column 1 Otago Daily Times, Issue 14457, 25 February 1909, Page 8
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