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Subway Etiquette: How-to Video of the Week

You might think you know how to ride the subway, you don’t!

Learn what you’re doing wrong. For more information on how to make NYC a happier place, read our guidelines.


Featured Image by Billie Grace Ward on Flickr
Attribution 2.0 Generic (CC BY 2.0)

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1 Comment

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    By reversing the circulation of refrigerant, the warmth pump refrigeration cycle
    is changed from cooling to heating or vice versa.

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