Purdue University College of Agriculture11d
Using sun shadows and simulations to combat snowy roads
Yaguang Zhang, a clinical assistant professor of agricultural and biological engineering as well as agricultural sciences ...
The Associated Press on MSN15d
The spring equinox is here. What does that mean?
And at the Mayan site Chichen Itza in Mexico, people gather during the equinox to watch the sun create a shadow pattern that resembles a serpent descending a building called El Castillo. But what is ...
Hosted on MSN1mon
Experts Find Ancient Spiral Rock Carvings That Tell Time, Interplay of Light and Shadow Was Utilized
According to LiveScience, the panels of ancient rock art on canyon walls, called petroglyphs, had unique interactions with sunlight and shadows ... the craft of building multi-story stone houses ...
Boston Herald15d
The spring equinox is here. What does that mean?
And at the Mayan site Chichen Itza in Mexico, people gather during the equinox to watch the sun create a shadow pattern that resembles a serpent descending a building called El Castillo.