Why is the prime meridian of Earth at Greenwich? Well, while I was living Continue reading “Ravens of the Tower”
Category: astronomy
In a Venn Cell by Himself
A dialogue arose from Continue reading “In a Venn Cell by Himself”
Latest sunrise tomorrow
The Quadrantid meteors
This first of the expected annual showers should be active in the night between January 3 and 4. Continue reading “The Quadrantid meteors”
Quiz erat demonstrandum
“Today is the first day of the rest of your life,” and: “Your message is very important to us” – I was impressed Continue reading “Quiz erat demonstrandum”
Ring Out the Old, Ring In the New
Here is the sky scene on the last evening of 2018.
A Quiz for Christmas Eve
An online quiz is like an exam to which students can bring their phones. Continue reading “A Quiz for Christmas Eve”
Balance
Earth is about to arrive at the December solstice, the fourth of the year’s four cardinal poi
Midwinter Minima
Comments: Cato, Stereo
Prose is linear, but the blog-and-comment system, Continue reading “Comments: Cato, Stereo”