1840s calculator! Palmer's Pocket Scale Review / HowTo

Palmer's Pocket Scale, printed in 1844.
This is episode 63 of my video series about old calculating devices.
Google book link for Palmer's Pocket Scale: books.google.c...
Articles by Feazel are:
Bobby Feazel, "Palmer's Computing Scale", Journal of the Oughtred Society Vol 3 No 1, p 9-17, 1994.
Bobby Feazel, "Palmer's Computing Scale - Revisited", Journal of the Oughtred Society Vol 4 No 1, p 5-8, 1995.
My straight slide rule is a K&E Beginner's Slide Rule N4058W
My circular slide rule is a "Calculator" (also called "Controler") model 75W.
End song inspired by "Hotter than a Molotov" by The Coup.
Chris Staecker webarea: faculty.fairfi...
#sliderule #frustrum