Close-up on Norwich, Vt.

At the Montshire Museum of Science in Norwich, Vt., Rowan Tatun, 6, left and Carson Jones, 3, explore rippling patterns in a virtual wishing well, part of the Secrets of Circles exhibit.
At the Montshire Museum of Science in Norwich, Vt., Rowan Tatun, 6, left and Carson Jones, 3, explore rippling patterns in a virtual wishing well, part of the Secrets of Circles exhibit.
(Mark Wilson/Globe Staff)