On July 5, 1687, Isaac Newton published Philosophiæ Naturalis Principia Mathematica. The date he invented the cat flap is not known, so let’s include that
The counterbalance to Gifford Pinchot. Featured image: Library of Congress via Wikimedia
Don’t worry–John Muir will have his say next Saturday! Featured image: US Department of Agriculture, public domain.
Featured image, via Wikipedia. Yes, Pliny did describe all the characters mentioned at the start of this video, including dog-headed men.
Although I love geoscience, I’m not a geologist, though I tried to become one. Mineralogy lab was tough – you had to identify rocks without
When I studied surveying, in 1980, the field was transitioning from painstakingly perfect hand-drawn artwork and lettering to instrumentation. Now, it’s all automated, but some