horsefly 4,318 Posted March 23, 2021 (edited) 57 minutes ago, Graham Paddons Beard said: How long is the piece of celotape? Is that at the moment of cutting, or one-second after that by which time it will have double backed on itself and twisted into a moebius strip? Edited March 23, 2021 by horsefly Share this post Link to post Share on other sites
