Why the Tips of Your Plant’s Leaves Turned Brown, and How to Fix It
If you find brown tips on your houseplant, you have to do a little detective work to find out what happened. This guide ...
How artists and scientists see tree branches similarly
Yet only “Gray Tree” has scale-invariant branch diameters. When Mondrian removes the scale invariance in “Blooming Apple Tree ...
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Identifying 2D shapes
Irregular polygons are shapes that have sides and angles of different sizes. You can always identify the polygon by how many sides it has. For example a pentagon is always a shape that has 5 sides.