About 13 results for "UCpFN5_YDQpHMF2XGpV9JKrA"

It finds the derivative: The Ott Derivimeter (1930s)

Chris Staecker • Jan 11, 2025

The Sector: the calculator of the 1500s

Chris Staecker • Nov 10, 2024

The Curta Calculator (full documentary) Review / How To

Chris Staecker • Feb 10, 2024

Writing a math research paper: start to finish!

Chris Staecker • Feb 9, 2024