Sunday, February 23, 2020

Green for Sunday Stamps

Some (mostly) green gravitational waves on this German stamp from 2017.

(I think someone showed this stamp recently in SS)




To see more green postage, explore the links at Sunday Stamps.

7 comments:

  1. Sometimes, I'm sure I can see movement when I stare at this stamp.

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    Replies
    1. You're right, this stamp does give the impression of movement.

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  2. Fascinating that gravity waves can be seen in colour, makes colliding black holes even more awesome.

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    Replies
    1. Science is so amazing, even if I understand little of it.

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  3. I can almost see and feel those waves. Great stamp.

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