Airglow from Lake to Sky, Astronomy Picture of the Day, photographer Dave Lane on January 28, 2016
Why would the sky look like a giant fan? Airglow. The featured intermittent green glow appeared to rise from a lake through the arch of our Milky Way Galaxy, as captured last summer next to Bryce Canyon in Utah, USA. The unusual pattern was created by atmospheric gravity waves, ripples of alternating air pressure that can grow with height as the air thins, in this case about 90 kilometers up. Unlike auroras powered by collisions with energetic charged particles and seen at high latitudes, airglow is due to chemiluminescence, the production of light in a chemical reaction. More typically seen near the horizon, airglow keeps the night sky from ever being completely dark.
Beauty Is Physics’ Secret Weapon by Steve Paulson
Frank Wilczek, a professor of physics at the Massachusetts Institute of Technology, ... won the 2004 Nobel Prize in Physics ...is not just a leading theoretical physicist but a student of philosophy and admirer of poet William Blake and Renaissance Italian architect Filippo Brunelleschi. ....
"It matters to me a lot whether the world is beautiful. It’s also a practical question for physicists, engineers, and designers. At the frontiers of physics, we’re dealing with realms of the very small and the very large and the very strange. Everyday experience is not a good guide and experiments can be difficult and expensive. So the source of intuition is not so much from everyday experience or from a massive accumulation of facts, but from feelings about what would give the laws of nature more inner coherence and harmony. My work has been guided by trying to make the laws more beautiful....Take the fact that the laws are eternal. That doesn’t sound like symmetry, but it is because the laws don’t change as the universe ages. So we have a change without change."
College student builds 'stained glass' igloo with blocks of colored ice and smallish front door. Mitch Fitch, 18, got the idea from his mother and built the igloo in front of his dorm at St. John's University in Minnesota.
The Tree Farm in a land where there are no trees.
Now the great spaces of Sutherland and Caithness have become famous for their silence, their seclusion, their isolation. One’s eye may roam for miles all around, unfettered, over empty lands where once there were trees, and then there were people, and now there is nothing.
Babel Tower: A Kinetic Mirrored Ziggurat Reflects the Surrounding Iranian Landscape See it move at the link.