Category Archives: astronomy

What your astrological sign tells about you

Nothing, except your gullibility if you believe in astrology. I have taught introductory astronomy at the college level for decades, and I know that there is a pervasive misunderstanding that connects astrology with astronomy. But let’s get this straight. Astronomy … Continue reading

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The Inverse Square Law

Or why nearby street lights are bright and distant streetlights are dim The Inverse Square Law is the mathematical description for how the brightness or intensity of radiated energy (such as light) varies with distance. In other words, it describes, … Continue reading

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A Blood Red Blue Super Moon Eclipse!

The image here may be what some folks are expecting on Wednesday morning. Sorry. I don’t want to dampen anyone’s enthusiasm, but as Carl Sagan said: “For me, it is far better to grasp the Universe as it really is … Continue reading

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Reflections of an Eclipse

Snappy title, huh? Actually, it should be, “Using a Mirror to View the Total Solar Eclipse,” but I thought that a bit dry. (Image of the McMath Pierce Heliostat mirror at the Kitt Peak National Observatory. Credit: NSO/AURA/NSF ) If … Continue reading

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Getting Past the Eclipse Hype

Considering the absurd level of hype and some of the more ridiculous exaggerations and crackpot  claims of mystical silliness, I am sorry to say that I will be glad when the whole thing is over. Eclipses are amazing and beautiful. … Continue reading

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The Last Total Solar Eclipse in the USA

I have seen references several times lately online, including an article in Popular Science, stating that the last total solar eclipse visible from the United States was in 1918. This is simply not true. There have been several total eclipses … Continue reading

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Einstein and Eddington

We had a free week of HBO so we decided to check out a couple of movies. The first was Einstein and Eddington, a BBC/HBO docu-drama about the relationship between Big Al (more appropriately, “Al Who?” at the time) and … Continue reading

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