10779460-6789857-image-a-6_1552147318811-1Satnavs and other devices relying on GPS technology may go haywire this weekend, scientists have warned. Motorists, sailors and pilots using GPS technology could all be affected on Saturday at 1am GMT – with the risk greatest with older models of satnav.  But GPS is also used in many other applications, including the electricity grid, which could also be hit, experts warned…..Read More