A rainbow is only an arc because we stand on the ground, we would see the full circle if we flew up into the air. Rainbows are not singular but many – they are fact but only visible from the viewpoint of the viewer. The equation of the rainbow gives an...
Trees so tall it is a wonder how their strong slender limbs rigidly withstand the wind. That twisting gnarly bark acting like armadillo plating, pretending not to be tender underneath, so how is it they can produce tiny geometric flowers and something so exquisite as...