This can happen at a train station with multiple tracks or stationary car in a l...

mc32 on Feb 26, 2023 | parent | context | favorite | on: Phobos's orbit and its apparent motion across the ...

This can happen at a train station with multiple tracks or stationary car in a lot or multilane roadway. You're in the stationary one and the other train or cars move and if you're not thinking it can feel like you're going backwards.