Woodworker extraordinaire [Matthais] was approached by a toy company to create a ‘marble run’ toy. [Matthais]’ jig-building skills are beyond reproach, so whipping up a prototype for this toy was ...

What is it about watching marbles roll down elaborate tracks that’s so entertaining? Are we so simple? Apparently yes! Just look at this huge contraption made out of over 4,000 popsicle sticks!

You've probably seen the famous pendulum demonstration—the one where the physics professor puts a bowling ball on a rope, holds it by her head, and lets it go, knowing it won't have enough energy to ...