Arithmetic made easy
Still on the same general theme as my last two blips. Log tables a necessary aid once supplied to candidates in all examinations which involved calculation - maths, physics, chemistry. I kept my copy for years after log tables fell into disuse because over 75% of this particular edition was taken up with various physical constants and other tables.
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- Olympus u1050SW,S1050SW
- f/3.5
- 7mm
- 400
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