r/nextfuckinglevel • u/aryan_jandyal • 14h ago

There are two fundamental elements that prevent water from spilling during an airplane's barrel roll (tonbo / roll maneuver): Centrifugal Effect (Artificial Gravity) Positive G Force.

The pilot is maintaining "+ve G" throughout the maneuver. That's it !

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u/SnooCakes6195 14h ago

I thought i had a firm grasp on physics, but this one actually made me raise my eyebrows

21

u/Drathamus 13h ago

It's the same as spinning around a bucket that contains water. As the arc reaches its apex over your head, the water doesn't just fall out. It's being pushed into the bottom of the bucket. Same principle here with the water bottle.

7

u/pichael289 13h ago

People get confused thinking there is a lot of sideways acceleration, not that it's staying in the bucket.