Tuesday, July 30, 2013

sundial in midsummer


Posted by at
Labels: , , ,

1 comment:

  1. Geo.August 25, 2013 at 1:05 AM

    I delight in this. A clock really only measures its own face but a sundial invites us to deduce the heliocentric nature of the solar system.

    ReplyDelete

Subscribe to: Post Comments (Atom)