Notes on the eclipse…
Friday, September 1st, 2017Isaac Asimov in his extended Foundation series (it brings together the Foundation Trilogy, the robot novels, and The End of Eternity) commented toward the end during the search for Earth that humans’ home is an E-type planet with a very large moon. Some gas giants have even larger moons, of course, but Earth’s satisfies the Goldilocks Principle twice over: its distance from the Sun and its diameter are just right so that it just blocks the Sun. That occurs about every eighteen months on Earth, but most eclipses aren’t seen by many people because the Earth’s surface is 70% covered by water.
Eclipses have left their observers agog from prehistoric times to present day. Originally explained via magic and superstition, we now use the magic of technology to observe them. These observations have aided and will continue to aid us in understanding our home star. The eclipse of May 1919 confirmed a prediction of Einstein’s theory of general relativity. While telescopes can now block the solar disk to study the sun’s corona and prominences, there’s something special about the moon doing it for us.
The eclipse occurred a week ago. Because the NYC area wasn’t in the path of totality, I decided to watch the totality multiple times with ABC’s reporters stationed along the totality path. Here are some notes (with annotations from yours truly) that I made during that experience:
The last cross-country total eclipse was 1776. I need to check that. If correct, that eclipse was the most patriotic one.
People were saying all viewers in the U.S. were at a “Woodstock for Nerds.” I was happier just seeing ordinary people, not Sheldons and Leonards, getting excited. Even the Great Denier of Science Fact seemed into it.
I’m not sure the two making their wedding vows during the eclipse got the wedding present they’d bargained for. It rained on them.
ABC’s left-clock announcing the “next totality” must have been created by a lover of oxymoronic phrases. There was no “next”; the moon’s shadow swept continuously across the country. They should have said “next report about totality” or something similar.
“Diamond ring”? Not a bad name, but that and the Bailey’s beads (named after astronomer Francis Bailey) are both due to the sun either peeking and/or diffracting through craters and valleys on the moon. Its limb isn’t smooth by any stretch of the imagination.