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Subject Topic: Noon Shadows on the Equinox Post ReplyPost New Topic
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MacBeth
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Posted: Sept 12 2006 at 10:58am | IP Logged Quote MacBeth
From a friend (not sure how info is submitted for homeschoolers, but it's a fun project, anyway!):

You and your students are invited to participate in an annual daytime astronomy project titled - Noon Shadows on the Equinox. The fall (autumnal) equinox will occur this year at 12:03 A.M. EDT (04:03 Universal Time) on Saturday, September 23rd. At that moment, the Sun will cross the celestial equator, and it will mark the official start of autumn in the Northern Hemisphere and spring in the Southern Hemisphere. The activity should be conducted during the school day on Friday, September 22nd. During this outdoor lesson, your students will be measuring the length of a shadow cast by an upright meter stick. The time of the shortest shadow length measured all day will mark solar noon - the Sun's exact midday position in the sky. By calculating the angle between the tip of the shadow and the vertical meter stick at solar noon, your students should be able to determine their own degrees of north or south latitude (but let them discover this neat bit of astronomical
geometry). All data submitted will be posted for viewing. Schools from as far away as Puerto Rico and Hawaii have participated in the past.

Click
here for the website.

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lapazfarm
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Posted: Sept 12 2006 at 8:15pm | IP Logged Quote lapazfarm
Very cool. Every year I try to remember to do something on the autumnal or spring equinox and every year I forget. This is the year!!! I hope...

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Rachel May
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Posted: Sept 12 2006 at 9:56pm | IP Logged Quote Rachel May
This looks fun and we need practice measuring. And we can recite "I have a little shadow that goes in and out with me...."

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