{"id":35752,"date":"2022-08-11T00:00:00","date_gmt":"2022-08-11T00:00:00","guid":{"rendered":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/?p=35752&preview=true&preview_id=35752"},"modified":"2022-09-12T11:11:47","modified_gmt":"2022-09-12T11:11:47","slug":"bulletin-solar-storms-cause-train-delays","status":"publish","type":"post","link":"https:\/\/c01.purpledshub.com\/bbcskyatnight\/2022\/08\/11\/bulletin-solar-storms-cause-train-delays\/","title":{"rendered":"Bulletin: Solar storms cause train delays"},"content":{"rendered":"\n
BULLETIN <\/span><\/h5>\n\n

Solar storms cause train delays<\/h2>\n\n

Sun\u2019s activity found to mimic the system used for train signalling <\/span><\/p>\n\n

\"\"
Solar flares and coronal mass ejections \u2013 the possible culprits for train signalling glitches <\/figcaption><\/figure><\/div>\n\n

\u2018Your train has <\/strong>been delayed due to a signalling failure\u2019 is a phrase commuters will be all too familiar with. While most of us might lay the blame on snow or rain, a recent report suggests another type of weather could also be at fault \u2013 space weather. <\/p>\n\n

Train signalling systems use electric currents in the rails to determine if a train is present on a given section of track, showing a red light if it detects one. However, solar storms also cause similar currents to form in the rails and it only takes a moderate event to trigger a red signal, even when there\u2019s no train present. <\/p>\n\n

\u201cWe are now working on looking at the case where trains are present on the line, and how strong a solar storm needs to be to turn a red signal back to green,\u201d says Cameron Patterson from Lancaster University, who investigated the phenomenon. \u201cThat\u2019s a far more hazardous scenario, potentially leading to crashes!\u201d www.lancaster.ac.uk<\/a> <\/p>\n\n

<\/p>\n\n

PICTURE CREDIT: STEVE MARSH, NASA<\/p>\n","protected":false},"excerpt":{"rendered":"

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