6 ms·

There is a nice video explanation from PBS at https://youtu.be/O4Ko7NW2yQo https://youtu.be/O4Ko7NW2yQo

• seventytwo 6y ago
  PBS, man. Just steadily and reliably educating everyone for years now. Good shit.
  • dimator 6y ago
    SpaceTime (that channel) in general is of impeccable quality and production value. Definitely worth subscribing.
    • Crash0v3rid3 6y ago
      Worth the patreon contribution also.