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Re: Abney Level Calibration
From: Chuck Varney
Date: 2023 Jun 29, 14:19 -0700
From: Chuck Varney
Date: 2023 Jun 29, 14:19 -0700
Frank Reed:
You wrote “Five to ten minutes of arc seems like a reasonable maximum accuracy for a basic bubble-level device like this.” I tend to agree, based on the third of the four photos that Marty Lyons posted which shows his Abney level has a vernier least count of 10 arc minutes.
If you do your ’75-foot garden hose’ experiment, be sure to post the result.
Chuck V
