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Guy's Math & Astro Blog

Guy's Math & Astro Blog

Tag Archives: Moon

Actual images of various rovers on Mars — as well as aftermaths of unfortunate crashes

23 Friday Jun 2017

Posted by gfbrandenburg in astronomy, astrophysics, History, monochromatic, science

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Mars, Moon, rovers

Proof once again that yes, NASA and the ESA and the Russians have indeed sent rovers and spacecraft to Mars (as well as to the Moon) – photos taken by various orbiting satellites.

Telescope Fix, Scudding Clouds Over Moon, Tom Turkeys Hiding, and Successful Cloud Chamber!

12 Monday Dec 2016

Posted by gfbrandenburg in astronomy, astrophysics, science, Telescope Making, Uncategorized

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cloud chamber, Digital Setting Circles, dry ice, Isopropanol, Moon, Sky Wizard, Turkeys

I had a productive 24 hours!

  • Night before last, I think I finally got Sky Wizard Digital Setting Circles installed on the 14″ alt-az telescope we were most generously donated by Alan Bromborsky. (That’s me, in the operations cabin  at Hopewell Observatory, taking a break and a picture, long before completion.)img_6169
  • So I went out to look at the sky at 1 AM. I saw no stars, but the 80% gibbous moon appeared to race dramatically through the clouds
  •  That afternoon, as I was driving out, I saw 5, maybe 6 tom turkeys playing hide-and-seek with me behind the trees. Believe me, they are REALLY GOOD at hiding behind little saplings, logs, and rocks! Or if you don’t believe me, ask anyone who’s tried to hunt them.
  •  Late that evening, I got a dry-ice-and-isopropanol particle detector working for the first time. (I had tried and failed, when I was a teenager, some 50 years ago, and failed several other times since then as well.) If you look at my little video, you can see the particles more easily than I could with your naked eye as I was filming it. Don’t ask me yet which ones are muons, which are alpha particles, and which are beta particles, because I don’t know yet. But you could look it up!

Productive 24 hours!

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