Mercury Sun Walkers

The sun is always just about to rise. Mercury rotates so slowly that you can walk fast enough over its rocky surface to stay ahead of the dawn; and so many people do. Many have made this a way of life. They walk roughly westward, staying always ahead of the stupendous day. Some of them hurry from location to location, pausing to look in cracks they earlier inoculated with bioleaching metallophytes, quickly scraping free any accumulated residues of gold or tungsten or uranium. But most of them...

 Bayes and Richard Price on Predictions

Bayes’s much more famous work, “An Essay toward Solving a Problem in the Doctrine of Chances,”24 was not published until after his death, when it was brought to the Royal Society’s attention in 1763 by a friend of his named Richard Price. It concerned how we formulate probabilistic beliefs about the world when we encounter new data. Price, in framing Bayes’s essay, gives the example of a person who emerges into the world (perhaps he is Adam, or perhaps he came from Plato’s cave) ...

 The Geoscope

Because the real planet Earth is revolving around its north-south polar axis, so, too, is mini-Earth. They are both thus revolving without effecting any change of the observed position of Polaris—the North Star—in respect to mini-Earth's north pole. Therefore, the observer at the center of the Geoscope feels spontaneously the celestial fixity not only of Polaris but also of all the other stars as seen outwardly through the Geoscope's triangular windows. Because outwardly of Geoscope's equ...

 Jupiter's Pattern in the Night Sky

Every 12 years Jupiter returns to the same position in the sky; every 370 days it disappears in the fire of the Sun in the evening to the west, 30 days later it reappears in the morning to the east...