It sure looks difficult!
can’t be out of the realm of possibility. And yet, it still feels unbelievable—which is, I guess, why they put it in the movie. But, as Dr. Ramón Barthelemy—assistant professor of physics and astronomy at the University of Utah and fellow of the American Physical Society—told me, this feat is not actually as hard as you’d think.The explanation starts with friction.
A larger coefficient would require a larger amount of force to start moving the object; ideally, you’d want the smallest coefficient of friction possible when endeavoring to move something. If the aforementioned box were to be made of concrete, it would be harder to pull, with its gritty bottom clashing against the road, than a box made of ice, which could glide more easily. “An airplane is actually no different,” Barthelemy said.
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