[Mollypitcher1]

That’s a trebuchet, not a catapult!
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You’re right and wrong at the same time.
A Trebuchet is a TYPE of catapult capable of heavier payloads..

[SoCal Pubbie]

Yeah, technically. But a trebuchet works differently. A trebuchet works by releasing a falling weight, while the classic catapult uses torsion. Anyway, you shouldn't use either if you live in a glass house!