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There are millions of mineral and rock formations around the world with 90 degree angles. A tree/flower stem/etc and the ground form a 90 degree angle. A branch
by throwaway892238 3y ago
There are millions of mineral and rock formations around the world with 90 degree angles. A tree/flower stem/etc and the ground form a 90 degree angle. A branch coming straight out of a tree trunk (common in pines, or some other evergreen) makes a right angle. A vine or spanish moss dangling from a branch makes a right angle. Two logs or branches that fall on each other in the forest serendipitously form a right angle. An arm, leg, etc sticking out of an animal with arms forms a right angle when extended. Water running down from two different points on a hill toward a central point could easily join as a right angle.
I'm pretty sure right angles existed before this log.
- deleted 3y ago[deleted]
- hyperthesis 3y agoThey're normal. When our first ancestor stood upright, a right angle was formed with the ground. A hand axe, a knapped stone lashed at right angles to a branch. Some say fire or dogs are humanity's first and greatest inventions - but we only domesticated those. I say weaving: an extraordinary crossing of threads at right angles that magically support each other, clothing that is the biblical coming-or-age of human-kind, fabric that drapes organically (and is still used today, even as threads become artificial), rope, leaves for shelter, even decorating hair. And it directly lead to the single greatest invention of our time, that binds all things together: gaffer tape.