Fiorella Rafael remembers feeling stiff at the end of every day in her old office job. “That lack of movement would creep up and compound over the week,” she says. Though standing and walking meetings ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...