Abstracts: Blue

Blue lights illuminate a ceiling

The ceiling in my dentist’s waiting room is illuminated with blue light, which always catches my eye when I walk in.


8 thoughts on “Abstracts: Blue

    1. Graham Post author

      I’ve actually had great dentists here in the U.S.. But then, I left England in my late 20s and my very last dental appointment there was the first time the dentist waited for the anesthetic to take effect before starting to drill!

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