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 ...

"Remote Learning During the Global School Lockdown: Multi-Country Lessons” and “Remote Learning During COVID-19: Lessons from Today, Principles for Tomorrow" The COVID-19 pandemic has disrupted ...

From the Mac you want to back up, go to System Settings > General > Time Machine in macOS Ventura or higher (System Preferences in older versions of the OS). Click Set Up Disk, then choose the backup ...