The intuitive model of a mosquito bite is that something sharp went into you and the hole is now irritated. Almost none of that is right. There is no single…
The ear is usually described as a funnel with a nerve at the end of it, which makes hearing sound like a straightforward matter of collecting sound and passing it…
Losing teeth as a child is so universal that nobody asks why it happens. Bones lengthen, muscles enlarge, feet go up several sizes, and none of that requires demolishing anything.…
The lift is the piece of machinery most people use most often without ever seeing any of it. What is visible is a box and two doors. What makes it…
A railway looks like the most rigid thing in the landscape: steel lines running dead straight to the horizon, apparently welded to the earth. The reality underneath is the opposite,…
The round cover is a famous interview question with a famous answer, and the famous answer is correct but incomplete. Roundness solves one problem extremely well. The lid is solving…