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- May 29, 2016
- 2 min
Check My Math
What Slope For Solar Panels? When told south-facing solar panels should be mounted with a slope of 20-40 degrees (my latitude=42...
- Dec 18, 2015
- 2 min
Paper Plate Star Finder
As you begin a new year of stargazing, a simple paper plate dial can help you discover highlights of the northern sky. For this...
- Aug 10, 2015
- 3 min
Find Your Place
The 2015 Perseid meteor shower peaks Wednesday night (August 12) and into Thursday morning (August 13). Look up on either side of the...
- Jun 4, 2015
- 1 min
Moon Shadowed Sept. 27
On Sunday, Sept. 27, 2015, a total lunar eclipse occurs when the moon glides through two shadows cast by the earth--a faint penumbral...
- Feb 26, 2015
- 2 min
Paper Plate "Man on the Moon"
Andy Bowers from Bristol, TN, created the Man in the Moon paper plate activity for his very young students. He describes below how to...