Uploaded April 2022 | Updated September 2026, 2 weeks ago

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My practice run for a talk delivered at the 14th Gathering 4 Gardner, in Atlanta on April 8, 2022.

I have full videos about 3 of these:
Variable scale: youtu.be/zeCslpB-JVU
Derivimeter: youtu.be/FSQErVZwh8s
Equameter: youtu.be/YQmPvvTd7e8

Chris Staecker webarea: http://cstaecker.fairfield.edu/~cstaecker

#gerber #derivimeter #equameter