Picture a world map. North is at the top, south at the bottom, and it feels less like a convention than a fact — as settled as the ground being…
Source: Wikipedia
There is a category of problem that looks impossible from the outside and turns out to be merely extremely difficult, and decipherment sits squarely in it.
When Egyptian hieroglyphs…
Ice cubes float. This is so ordinary that it takes a moment to see anything strange in it.
Consider what floating means. An object floats when it is less dense…
Soap is one of the oldest manufactured substances and one of the most consequential, and almost nobody can explain what it does.
The common assumption is that soap is a…
There is a security feature in almost everyone's pocket that has been doing its job for over three hundred years, and almost nobody knows what it is for.
Look at…
The useful way to read a lock is as a question about what the key is proving. Every mechanism below tests something slightly different, and the differences are the history.…