Category Archives: Mathematics

5*11

Five 11s Eleven 5s A half century and a half decade. Two score plus a half score plus a quarter score years. I can’t and never could drive fifty-five. I was almost five when Apollo 11 landed on the moon. … Continue reading

Posted in Autumn, Family, Genealogy, Mathematics, Musings, Seasons | Tagged , , | 1 Comment

Just the Stats, Please

Yes, I’m still here.  Sort of.  I’ve been so busy since the first of the year, I just now came up for air, and only because I realized it had been nearly a month since I’d posted to my blog.  … Continue reading

Posted in Books, Mathematics, Mutterings, Non-Fiction, Seasons, Winter | Tagged , , , | Leave a comment

Absolute Magnitude Luminates Absolutely

This week I want to discuss “What might cause the closer of two identical stars to appear dimmer than the farther one?” Apparent Magnitude: A measurement of the brightness of stars without regard to their distance from Earth. The scale … Continue reading

Posted in Astronomy, Constellations, Mathematics, Science, Sirius, Stars, STEM, Ursa Major, Vega | Tagged , , , , , , | Leave a comment

No, Chicken Little, the Sky is Not Falling

My topic for discussion this week will attempt to answer the question: Why do astronomers believe that the debris that creates many isolated meteors comes from asteroids, whereas the debris that creates meteor showers is related to comets? But first, … Continue reading

Posted in Asteroids, Astronomy, Comets, Mathematics, Science, Solar System, STEM | Leave a comment

Foci and Mirrors

This week’s discussion topic will attempt to answer the question: Suppose your Newtonian reflector has a mirror with a diameter of 20 cm and a focal length of 2 m. What magnification do you get with eyepieces whose focal lengths … Continue reading

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Newton and Neptune

My second post in my series of weekly discussion topics for my Introduction to Astronomy online class.  Last week I got up close and personal with the many sides of the Moon.  This week I take a closer look at … Continue reading

Posted in Astronomy, Mathematics, Neptune, Science, Solar System | Tagged , , , | 4 Comments

WorldCon Withdrawals

Despite what my husband thinks, I have not over-dosed on science fiction since last Wednesday when the 74th World Science Fiction Convention (commonly referred to as WorldCon) arrived for the second time in Kansas City, Missouri.  MidAmeriCon II ended yesterday … Continue reading

Posted in Art, Astronomy, Books, Engineering, Fantasy, Mars, Mathematics, Musings, Science, Science Fiction, STEM, Summer | Tagged , , , , , , , | 1 Comment