Newton, Leibniz, and Usain Bolt | Derivatives introduction | AP Calculus AB | Khan Academy
Why the open web links it
Introduces derivatives through the concepts of motion and the contributions of Newton and Leibniz.
Linked by 2 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including univ-pau.fr, gifu-u.ac.jp.