Set 2
Images of sedimenting bodies
Top: Body 1
Bottom: Wire insulation (body 2)
Right: Body 3
Left: Body 4
Run 09 - Body 4
A top view of body 4, with the flat side down (contrast to run 10, with flat side up)
The objects in this set were cut from a plastic spoon. The brittle plastic cracked as the cuts were being made, forming irregular shapes.
These pieces of plastic were allowed to sink in a 1 L beaker of salt water; the salt concentration was increased so that the objects were neutrally buoyant, and then the solution was diluted so they sank very slowly.
To monitor for residual circulation, a small cylinder of floating plastic was left on the surface. For all Runs in this set, the cylinder remained stationary, showing that any residual flow is much slower than the observed chiral motions.
