It's the pole, so the end with the weight, that doesn't move, to that's important. So if the fixed end is inside the area to be measured, typically say for ag4ugm
I have 10 or so planimeters of different sizes and types. I found several manuals. I found a description of the "neutral circle" but I do not fully understandclarkmccoy2
Paul, Curiosity tempted me to buy a planimeter some time ago. Maths books up to the 1960s describe the theory, which to me is complex (integral calculus). Thedieswartdose
The International Slide Rule Group "ISRG" is devoted to collectors of slide rules and associated mechanical calculating instruments.
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Slide rules are THE ORIGINAL solar powered calculators. Try using one in the dark and you'll see I'm right, or not see as the case may be.
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- Dec 21, 1998
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