Steel Ball Dropped in a Viscous Fluid (A11) [2C30.51]

Five steel balls of different sizes are dropped into corn syrup. The balls reach a constant velocity shortly after entering the fluid. The velocity is constrained due to the drag balancing the force of gravity in the fluid. This demonstrates the relationship between the size of the ball and the maximum velocity it can obtain.

[semiclassical]

For other users: the effective areas are the square of the ball diameters, which are 3/32 in, 1/8 in, etc. This of course must be accounted for when inferring the viscosity from the slope via the Stokes drag law.

[StephenGoodfellow]

OK, this is pretty big. Quantum mechanics has argued for years that space is not a vacuum.
The argument brushing aside quantum mechanics, stating that it's 'just a quantum mathematical theory' can now be put to rest. In the article below, laboratory experimentation demonstrates that the Casimir Effect can convert vacuum energy into work.
This has huge implications on one of the most basic tenets on Galilean/Newtonian/Einstinian physics that claims all objects fall at the same rate in a space vacuum.
If space is an expression of pressure everywhere, then - in space - there is nowhere you can roll two balls of different mass where the larger mass does not arrive sooner than the lesser - providing you make the ramp distance long enough.
The ball and feather experiment works fine - providing you don't drop them 1000 miles above the Moon.
Galilean/Newtonian/Einstinian physics works fine at 'short' distances, but breaks down over sufficiently longer distances.
The argument that the effect is so small as to be insignificant is an ill-conceived reply when one considers that the minute discrepancy observed precession of Mercury was a foundation in Einstein's paper of Relativity published in 1916.
So the Casimir Effect demonstrates that the given density of space is irrelevant, since all space has density.
The two dropped objects of different mass anywhere in the Universe will not arrive at the same time, providing the drop is given sufficient time for measurement.
In the experiment below, watch balls of varying sizes dropped in a dense viscous liquid.
Drop the same objects in a near-vacuum ANYWHERE IN THE SPARCEST VOLUME OF SPACE, and let them fall towards a third more powerful gravitational field for thousand years, the heavier object will arrive first.

[darciespina]

Hi, what was the volume of the container