The shape is the instrument reading. Here are seventeen.
1. The Fluffy White Heap With a Flat Base
Cumulus forms where warm ground heats a bubble of air until it…
Humans Are the Best Long-Distance Cooling System in the Animal Kingdom, and Sweating Is How We Do It
Sweating has a poor reputation, being treated as an embarrassment to be suppressed with products. It is, biologically, one of the more remarkable things about the human body, and among…
A beetle's back does not look like wings. It looks like a shell, hard and glossy, split down the middle by a straight seam. That seam is the clue. The…
There is moss on the wall outside, on the north face of a gravestone, in the gaps between paving slabs, along the damp side of a tree. It looks like…
Nearly everyone learns that a rainbow is sunlight split into colours by raindrops, which is true and which explains almost none of the things that are actually strange about rainbows.…
This single misunderstanding, that the mushroom is the fungus, is responsible for most of what people get wrong about fungi. It makes them seem like odd, short-lived things that appear…