Jacobs Ladder is an ancient and famous toy featuring optical illusion and hands-on fun that never grows old. This brightly painted version is made of 2 inch square colorful wood blocks connected by bright ribbon. How does it work? The wooden blocks clatter infinitely down the sides, suspended on the interwoven ribbons. Simply hold the top block by its edges and let the rest of the identical blocks swing downward until the ladder is fully open. Then, holding the top block by its edges, turn it 180 in a left rotation, until the top and second blocks are parallel and touching. When the held block hits the hanging block, a series of blocks will begin cascading down.

What you'll get:

• Colorful Wooden Jacob's Ladder

Incredible Science Fun Learning Ideas:

• Try this neat baffling science demonstration you can do with your Jacob's ladder: Fold up a dollar bill into a small rectangle and tuck it under one of the tapes. Then start Jacob's Ladder. The dollar will successively disappear, appear, disappear, and so on, for no apparent reason.