Example: https://everwas.com/2009/11/old-school-playground/ https://everwas.com/2009/11/old-school-playground/ > there was also this rotating hoop called a wit

Example: https://everwas.com/2009/11/old-school-playground/ https://everwas.com/2009/11/old-school-playground/ > there was also this rotating hoop called a witch's hat which taught early lessons in conservation of momentum and unbalanced mass rotation. I loved that thing. Back in kindergarten we'd get the young student teachers to spin us as fast as they could and then the brazen of us would let go for our first experiences with flight. I'm incredibly grateful to have been part of the last class at Edwards Elementary that had access to that deathtrap, it was removed at the end of that year. Hell, thinking about it now makes me want to weld up an adult version for my friends and I. Though, I think our increased mass might limit our fun; it'd probably "good" idea to power the rotation.