What is dental floss made from?

On 23/07/19 6:16 am, Dr. David Kirkby wrote:
I have been discussing with some friends about the Oxford Bell with a view
to making one. One guy can not believe a battery can last 175 years.

Anyway, I was wondering what would make a good insulator to suspend the
ball. I thought of nylon fishing like, but can anyone think of a better
insulator? Obviously PTFE is a good insulator, but it’s not exactly
flexible. Nor is sapphire.

Dave


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