@Philip_Britton Tweet 13/10/2015 08:32 PM Tweet 13/10/2015 08:32 PM Posted by Bolton School on 13 Oct 2015 Modified by Bolton School on 16 Sep 2023 @Philip_Britton RT @BoltonSchTech: Without breaking, we managed to stretch glass fibre plastic over 40mm using over 1500N of force.