There are various ways to measure plant health, and we’ve seen many projects creating open-source solutions. One we haven’t seen is a dendrometer, which involves measuring various physical dimensions ...

Trees are tall. Humans, relatively speaking, are not. And we're not the most agile climbers in the animal kingdom, either. But we are crafty, and we can out-think even the most wizened redwood. But ...

Anybody who has bought a lovely Christmas tree, only to find you can’t get it through the door will tell you, it’s important to measure things. But tape measures aren’t always practical and are easily ...