78v.) Leonardo da Vinci observed that tree limbs preserve their thickness as they branch. The Italian Renaissance artist used a parameter called α to determine the relationships between the ...

There are at least 13,000 species of lichens living throughout the world. Lichen species are so numerous and diverse that there are individual exceptions to most general statements about them.

A hand saw can also get the job done with less hassle. That is why getting the best hand saw for cutting trees will make pruning branches a lot easier. I have a bunch of different options to review ...