I need a diagram( showing the magnetic poles ) for the 'Nikolayev trailer-hitch', specifically for the one in https://www.youtube.com/watch?v=mmdSSMoUT4g
( there is a similar youtube video using a toy-car, https://www.youtube.com/watch?v=dtiMQPeYJrQ , but that video seems to use different magnetic-poles , the magnetic-poles are pointing in different directions to the video above )
I think that the diagram below, may be correct for https://www.youtube.com/watch?v=mmdSSMoUT4g , can anyone confirm this ?
( I can't get anything working with my magnets )