Time for an easier question. I'm sure all of you guys can figure out what the name The Disappearing Spoon references. This one is actually quite interesting and the hint for this question is that it references an April fools joke. I'm actually surprised Steve didn't use this in fact or fiction because its as bizarre as all hell.
Too easy. The old stunt of making a teaspoon out of gallium
with a melting point just below 30°C, so it melts as soon as you try to stir a hot drink with it. I don't think it's really all that bizarre that some elements have melting points in the range of temperatures we live in.
You could do the same trick with rubidium
, if only they didn't react violently with water (one of my favourite Open University videos):
In tropical countries, maybe gallium should be regarded as the third liquid element, at least during daytime. Chlorine would also be liquid (-34°C) at some times of the year in parts of Antarctica or the far north.