There are four lights! | James Howard There are four lights! | James Howard

James Howard A Mathematician, a Different Kind of Mathematician, and a Statistician

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There are four lights!

As the MARC train approaches the station, the lights on the front blink alternatingly. I am pretty sure they blink slower as the train slows down. However, this might just be a relativistic effect.

Image by James Blucher / Flickr.