Europa-List: Buoyancy

[Richard Holder <rholder@avnet.co.uk>]

Remember there are two types of foam. Closed cell and open
cell.

Closed cell contains individual bubbles which are closed.
This type will not absorb water.

Open cell is really  a network of foam which has air space
inside it which is contiguous. This type does absorb
water. Most sponges are open cell.

I have no idea which the Europa blue foam is.

It is dark and rainy so I won't go out to my shed and look
tonight !

Richard Holder
G-OWWW