太空风暴可能导致火车混乱

Critical safety equipment in train systems around the world may need to be modified due to the threat posed by solar wind, finds Michael Le Page A NUMBER of electrical systems in the railways of many countries, including the UK, are vulnerable to space weather. In the worst case, a red signal could be turned green, potentially causing a deadly train crash, says Cameron Patterson at Lancaster University in the UK. “You could have disruptions to signalling systems, which are crucial to railway safety,” he says. “We have to prepare for these things now, and getting that message across, I think, is really important.” The sun is constantly blasting out charged particles, as well as light. …