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Virtual Demos Virtual Demos are recorded during the SDBA Monthly Meetings. Be sure to also check out our Tips & Tricks page for more virtual learning opportunities! https://youtu.be/jtQvY_Pz6hE March 2024: Mechanical Postcards and Puzzles Paper engineer Shawn Sheehy presents a project for bird lovers AND word lovers. A volvelle mechanism reveals clues to decipher a […]

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