The underlying operation is always the same: bacteria convert milk sugars into acid, the acid changes the proteins and the product keeps. What differs is which bacteria, at what temperature,…
There is a category of biological feature that only makes sense as a leftover, and the third molars are the most familiar example.
They appear late, typically in the late…
There is a particular kind of double-take that everyone has experienced. A washing machine looks startled. A car in a car park appears smug. A pattern in wood grain resolves,…
Sound behaves very differently in water than in air, and most of the differences are counterintuitive.
It travels roughly four to five times faster. It carries very much further. And,…
The question worth asking on any open plain is what is stopping the trees, because something is. Here are seventeen answers.
1. The Rainfall Squeeze
The basic temperate grassland occupies…
Source: Wikipedia
A cinema was a building that did one thing, at times somebody else decided, and you either got there or you did not. Here are twelve things anyone who…