This webinar will premiere a new molecular machine animation on the topoisomerase enzyme.
No sane person believes that nothing changes over time, or that the cosmos, technology, and culture have no history.
The video draws arrows from one species of fossil horses to the next and says “there is a constant change and we can see it directly through the fossil record.”
I’ve watched many Khan Academy videos over the years — sometimes just for fun, and sometimes to advise teachers on whether they are good tools to use.
Yes, that is kind of adorable. It took only a few days for the fish to learn to drive.