Fireside Chat Gravity: The Reckoning From black holes to landing a rover on Mars, gravity is the essential consideration. Gravity is not a classical force like magnetism. Newton described the behavior of objects subject to gravity, but did not describe its nature. Einstein showed mathematically that gravity is mass/energy distorting spacetime. Accordingly, gravity is now […]

Graphic: The Emberá Comarca of Eastern Panama within the red circle   Henupoto Wara: Supernatural Anti-Hero of the Mythical Past   The Emberá, a tropical lowland tribe of the Darién […]

A few of my favorite hemes.  The "heme cofactor" is familiar to us as the part of hemoglobin where oxygen attaches for transport through blood. It lends blood its characteristic […]