How Airlines Could Save Energy

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Right now I’m sitting on a plane and can see something that strikes me as a total waste of energy: the illuminated “no smoking” signs installed above each row of seats.  Once upon a time, these signs served a useful purpose: they would be lit during takeoff and landing, times when smoking was prohibited. Nowadays, of course, smoking is prohibited all the time on planes.  So why continue to illuminate the signs?  The airlines are always looking for ways to save money, so why don’t they replace the signs with stickers and save energy?

Of course the savings would be minimal compared with the energy required to fly the plane, but every little helps.   Do the airlines believe that smokers will light up if the signs don’t?

And another thing: why are this plane’s wash“rooms” (a relative term—I’ve seen larger mushrooms) equipped with ashtrays AND smoke detectors?

Oh well, it’s given me something to blog about, so I suppose it helped pass the time on a long and boring journey.  Not that I’m complaining: boring plane journeys are the best sort.