Source: Wikipedia
Anyone who has left a tool in the garden knows what happens to iron. A gate goes orange, a railing flakes, and given a few seasons the metal is…
The mistake is treating each journey as a separate problem to solve. The system has a logic, and learning the logic once is far quicker than working out ten routes…
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…
Almost none of these are about a single person doing a small thing. They are about what a small thing becomes when several million people do it in a year.…
Almost every unit of time you use is a measurement of something physical.
The day is the Earth turning once. The month is roughly the Moon going through its phases.…
Blood Types Were Discovered Over a Century Ago and Nobody Has Established What They Are Actually For
Most people know their blood type, treat it as a fixed personal fact like eye colour, and have never wondered what it is.
It is a molecule. Specifically, blood type…
