Post

the question is though: why are you, as a man, so antagonistic towards balls? is this a manifestation of self-hatred? worth looking into, maybe even exploring it with psychiatrist. or, you know, there's gender-affirming surgery 😉

The density of seawater at the bottom of the trench is (apparently) around 5% more than on the surface. This means that there is an exciting range of bowling ball weights which will neither float or reach the bottom.

Thinking some more, we need to understand the compressibility of a bowling ball. If it compresses by more than 5% on the way down, then it would actually accelerate downwards. However, a bowling ball is not made of spherical layers, so a highly compressed ball is unlikely to be spherical!

The Hydraulic Press guy from Finland cracked/broke a bowling ball at 18,580kg (40,960 lbs). . .so maybe not? I only have a degree in Sociology, so what do I know?

Well then maybe you can explain why bowling is an hour a sport played in front of stadiums. Sending it home with a beer and watching it on TV made some sense but 15,000 people packed into a stadium to watch two guys knock down weird looking pieces of plastic is strange to me.

12.1 pounds is neutrally buoyant, so each 10lb ball supports 2.1 pounds. 10 would support 21 pounds. But you're using it as a life preserver, not a raft. Humans are themselves close to neutrally buoyant; you really just want it to let you keep your head above water. 21 pounds is more than enough.

I think the average mass of a ball might be higher than you calculated from images of bowling alley racks. I think most balls are purchased by individuals, not bowling alleys, and spend their days in a closet somewhere instead of on display. I wonder if there's any available data from manufacturers?

My question is water pressure: Does the water get denser, changing the apparant weight of the bowling ball? If so, wouldn’t the balls slightly over 12lbs find equilibrium at specific depths?

Wikipedia says that seawater is not compressible, so differences in pressure don’t lead to changes in density. Temperature and salinity affect seawater density. Colder water is denser than warmer water, and saltier water is denser than freshwater. The topic to look for is ‘ocean stratification’.