1. TED-Ed videos in YouTube:
    “Out of this world” playlist
    There are also so many other good videos and playlists,
    just search the topics you are interested in.
  2. PBS Space Time videos in YouTube.
  3. Veritasium videos in YouTube.


  1. CERN Science page.
  2. Einstein-online page.
  3. Symmetrize Magazine.
  4. For philosophical point of view on theory of relativity and cosmology as well as on many other topics Stanford Encyclopedia of Philosophy.
  5. Jyväskylän yliopiston avoin
    online kurssi “Kvanttimekaniikka ja suhteellisuusteoria yleissivistävästi”, in Finnish.


  1. TestTubeGames.
    My own favorite “Velocity Raptor”.
  2. Relativity Lab.