Kevlar. Stronger than silk. George Dowell
On 2019/07/22 04:53 PM, Alex Pummer wrote: > how about silk? > > KJ6UHN Alex > > On 7/22/2019 1:02 PM, Rob Klein wrote: We can be fairly certain that > materials like Nylon and PTFE were not around when the original bell was made > ... > > Someting like (waxed) silk, perhaps? > > Met vriendelijke groet, > Rob Klein > > verstuurd vanaf mijn smartphone > > Op 22 jul. 2019 21:40, om 21:40, Adrian Godwin <[email protected]> schreef: > Nylon is hygroscopic. Doesn't seem like a good idea. PTFE is flexible > when > thin - eg PTFE sleeving. Some of the other artificial fibres such as > dacron, kynar etc. might also be good - I'm not sure of their > electrical > properties. > > On Mon, Jul 22, 2019 at 7:17 PM Dr. David Kirkby < > [email protected]> 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 > -- > Dr. David Kirkby, > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com and follow the instructions there. --- This email has been checked for viruses by AVG. https://www.avg.com _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com and follow the instructions there. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/volt-nuts_lists.febo.com and follow the instructions there.
