(instagram) How much light do we get exposed to after dark, and how does it matter? People all over the world are living under the nighttime glow of artificial light, and it is causing big problems for humans, wildlife, and the environment. ~ National Geographic This illuminating 😉 post on the Harvard site seems to…
After a long time, had gone out really early morning just after sunrise, and just walked briskly for a few kms without any camera. This evening went with some others on the same route at sunset. This crow took off shortly after this pic into the golden light. Cormorants flying around after the sunset before…
Discussion with any kids at home (please ignore that fellow in the middle)… Shadow of wall on left and right are both by straight walls, only one source of light, why are they different? Can this be made at home… with a light, and say 2 spoons or 2 pens…