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Get started building fascinating mechanical circuits as you solve 67 fun
Spintronics Act One: Begin the time-winding journey with Spintronics Act One
This tool makes it easy to pick up marbles from the bottom of the board and reload them back on top…especially if you have adult-sized fingers
3 feet of chain)
and libraries
Spintronics Act Two Replacement Puzzle Book Version:French Get started building fascinating mechanicalA physical copy of our popular Spintronics Act Two Puzzle book is perfect for anyone who is looking to follow along remotely or even over someones shoulder!
US$ 12.50
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US$ 15.00
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US$ 2025.00
US$ 100.00
