Some polystyrene foam is made from beads thtah can be separated...
Back in the 1940s and for a couple of centuries before, pith was the
material of choice. As a child in the 1940s, I remember seeing a
closed toy box with a glass top and various bits in it.
Nicholas Bodley |@| Waltham, Mass.
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Autodidact and polymath to some extent
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