Plummeting insect numbers threaten collapse of nature

[burkhard]

(05-10-2019 09:41 PM)Thomas Okken Wrote:  Sure. Draw two straight line segments that meet at one point, and draw them such that the angle between them is one radian. That's a physical angle of one radian right there.

Or just draw a single line segment and subdivide into two segments by marking with a point somewhere on its length. The point then forms the vertex of an angle of Pi radians formed by the two new line segments.

I really miss Walter for discussions of units.