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A forgotten formula determined Portland’s addresses. Here’s how it works
How I found out The distance formula is explained in an article in The Sunday Oregonian of July 16, 1933. The writer was Hilmar Grondahl. When I started work at The Oregonian as a copy editor in ...
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How to calculate speed, distance and time
Use the formula triangle to establish the correct calculation by covering up what needs to be worked out. To work out speed, cover the S. To work out distance, cover the D. To work out time ...