Realizations from Watching the Planets and the Moon

During this week of April 12th, 2020, early risers were rewarded with the sight of a waning crescent moon and three planets, Mars, Saturn and Jupiter, all fairly close to each other just before sunrise. On the 16th, I used a different shutter speed to capture a bit of detail from the moon, one that... Continue Reading →

How the Ju|’hoan Make Poison Arrows

When I was a child, my grandmother taught me how to make arrows from the softwood of a poplar, a tree that was abundant in the woods that we could step into from my backyard. Later in adolescence, biased from the movies that I watched,  I perceived arrows to be "primitive". It is another case... Continue Reading →

Icicle Adventures

Despite below freezing temperatures, ice can melt in sunlight. This indicates that ice molecules can easily get agitated to above freezing temperatures even if surrounding air molecules have less energy of motion. If the melt-water runs down an edge, heat can be taken away again from the dripping water. An icicle begins to form. If... Continue Reading →

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