**Historical Notes for Calculus Teachers**

I am in the process of preparing a volume on the above topic. Here are some sections:

- Why the sine has a simple derivative
- Torricelli's Trumpet
- Clepsydra
- History of the Brachistochrone and How to Build a Brachistochrone.
- The Bridge and the Catenary
- Cauchy's Famous Wrong Proof
- Documents: Proof in the Cours d'Analyse (1821) is on pp. 131-132. The condensation test is also here.

- Schwarz's Paradox
- L'Hospital's Rule
- Derivative of the sine function

NB. Teachers are encouraged to use this material in the classroom --- but I would very much appreciate feedback about how these could be improved. Send an email to Fred Rickey.