When you think of metal, you most likely think of strength and toughness. Well, element gallium is here to change that perception.
Related: Astatine, Earth's Rarest Element
Watching this element melt in lukewarm water is quite a trip.
Gallium is a solid metal at room temperature, but it melts in your hands. 00:09
When gallium is in its liquid state, if feels like cold melted solder in your hands. 00:33
Melting gallium onto aluminum makes the aluminum brittle enough to break with your fingers. 01:35
The gallium beating heart is a chemistry demonstration in which a drop of gallium is made to pulsate, like a beating heart.