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Plummeting insect numbers threaten collapse of nature
05-10-2019, 09:41 PM
Post: #47
RE: Plummeting insect numbers threaten collapse of nature
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.
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RE: Plummeting insect numbers threaten collapse of nature - Thomas Okken - 05-10-2019 09:41 PM



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