similar image search for post: If you sit in an accelerating tram, you can see the magnetic field from the electrical engine with a smartphone.

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		If you sit in an accelerating tram, you can see the magnetic field from the electrical engine with a smartphone. submitted 12 years ago by notwist to /r/mildlyinteresting 720 x 1254 - 650 kB 76 points 3 comments Google - Bing - ImgOps - Search Reddit Subreddits: all NSFW filter: on

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