Aristotle's question: will a feather and a steel ball land together? Try Air, then switch to Vacuum.
Launch Lab — the seesaw catapult
The light flier sits on the left; the heavy weight drops on the right. The right end slams down and the left arm whips the flier up and over toward the castle — just like a trebuchet. Slide the fulcrum toward the weight (right) to lengthen the left throwing arm and fling farther. Try to land it on the castle!
🏛️ Aristotle says
Pick your materials and press a button. I'll tell you what the physics is doing every time!