There is a category of human behaviour that is universal, immediately recognisable across every culture, entirely involuntary, and without a settled explanation.
Emotional crying belongs in it, alongside blushing and…
Maya Linton
The wheel is frequently described as the great invention. The wheel-and-axle pair is the invention; a disc that rolls is obvious, and attaching it usefully is not. Here are twelve…
Altitude is not simply cold. It changes the pressure, the radiation, the growing season, the cooking and the access, and a town built high has adjusted to every one of…
Source: Wikipedia
What made school mornings distinctive was the deadline. Everything else in a household could be adjusted; the time you had to be out of the door could not. Here…
The useful way to think about paint is as a delivery system. The colour cannot stick to anything by itself, so the entire technology is about getting it onto a…
There is a general expectation that pain corresponds to damage. A large injury should hurt more than a small one, and a deep wound more than a superficial one.
A…