Have you ever made or seen a device where there’s a drawing on each side of a piece of paper attached to a stick, and when you spin the stick the pictures appear as if they are one?
The fancy name for such a thing is a thaumatrope, and it’s actually really easy to make.
Team Cartwright has a post explaining why this works and how to make them. You can use their printables or make your own designs to construct your own optical illusion.
Check out the post at Team Cartwright to get all the details and the printables.
[Photo: Team Cartwright.]
Fall is a great time to learn about and observe the birds in your area, but you can do this any time of year. Whether you’re watching from a backyard or a playground, you’re sure to find a few birds and can learn about the birds that are native to your region in any case.
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