40 Times people found out just how extraordinary the combination of nature and science can be

19. Hot and cold.

This is what happens when you heat an ordinary marble over a flame then immediately drop it into cold water from mildlyinteresting

Warning: doing this experiment can be very dangerous. But one brave person tried to drop a marble in cold water immediately after putting it over a flame. It looks incredible, especially that it didn’t explode. It could’ve hit him in the eye!

55 Annoying know-it-alls who think they’re geniuses

50 Photos of people who found their doppelgängers in real life and had some questions