Announcement: the Curiosity Podcast is finally here! Subscribe on iTunes here, Google Play Music here and add the RSS feed to your favorite podcast player. If you love it please consider leaving us a review.
Share the knowledge!
Key Facts In This Video
Gallium safely melts in human hands. 00:44
Francium has never been visible to the naked eye. 03:08
When sufficiently cooled, Helium becomes a superfluid that seemingly defies gravity. 06:10