Activity for Petr Pudlák‭

Type	On...	Excerpt	Status	Date
Question	—	What could be the physics behind witches flying on broomsticks? Using our world's physics, how could one explain the mechanics behind a witch on a broomstick? Not just the propelling part, but even the most basic fact - sitting on a broomstick - seems problematic: The center of gravity of human body is far above the broomstick, so within a second, a witch would j... (more)	—	almost 9 years ago