The Enigma of Time

What does it mean, Albert Einstein asked in 1905, to say that a train arrives someplace — in Paris, say — at 7 o’clock? It should be noted that today, 30 June, 2017, is the 112th anniversary of Einstein’s publication of “On the Electrodynamics of Moving Bodies“, his Special Theory of Relativity, and thus it … More The Enigma of Time

Summer Solstice 2017

Southern-facing view for US eastern seaboard, mid-northern latitudes for this year’s Summer Solstice. In this view, note the position of the planets Mercury, very close to the sun, Mars, Venus and the Moon, our natural satellite. View via Stellarium. During the yearly journey around our star, the Earth passes four notable points, points that mark … More Summer Solstice 2017