What’s an uber-cool fact that blew your mind?

You never truly touch anything, because when you try to touch something, the atoms in you and on the surface never actually make contact, and the sense of touch just comes from the electrons repelling each other

There has not been a leap second for over 9 years.

Leap seconds used to be added every few years to account for the slowing of Earth's rotation, but in recent years, our planet seems to have sped up.

In 1980, six of the world's ten largest cities were in the Americas. None were in China.

Some good ones from everyone here; I like those.

Just an obvious one from me: the fact that anything exists at all. Why shouldn't there just be nothing?

Instead, here we are, small pieces of the cosmos, thinking about itself.

Holes started randomly disappearing from swiss cheese. No one knew why.

Apparently the holes are a result of natural imperfections in the cheese. They got so good at making swiss cheese that they stopped having holes. So now when you see swiss cheese with holes, they have to re-add the imperfections in on purpose.

Similarly, coconuts aren’t naturally dried and brown. They just dried out on the boats, but the green ones didn’t sell as well, so they essentially lock them in a warehouse for a couple of weeks so people will recognize them.

Fun fact: there is a giraffe hidden inside this flag

Here’s another one: the third punic war never officially ended, so in 1985, Italy and Tunisia signed an official peace treaty after 2,000 years