National Park Quiz 47: Spring
Spring arrived at 11:44 UT last Friday, March 20, so let’s make spring the key word for this week’s quiz. Answers are at the end. If we catch you peeking, we’ll make you write on the whiteboard 101 times: “The celestial coordinate system that employs the vernal equinox as the origin of the ecliptic longitude is known as the ecliptic coordinate system.”
- By Bob Janiskee - October 30th, 2011 9:48am