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| 2014: Year of Crystallography (Design - P Antunes) |
I struck lucky with this stamp for the letter P , there are quite a few in the Patterson function. Not only solving my problem but in crystallography as it solves the phase problem in crystal structure analysis of molecules containing heavy atoms. A bit of mathematical brilliance from Arthur Lind Patterson (1902-1966). Portugal were very enthusiastic about the Year of Crystallography as they issued 5 stamps and a souvenir sheet.
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| 1979: Europa - Post and Telecommunications |
Only one P for Portugal on these stamps but the subject is one we all love - the post arriving.
Sunday Stamp II theme this week is - the Letter P - pop over for more at See It On A Postcard
5 comments:
It took me longer than I care to admit to parse that description of the first stamp.
The post carrier on a horse holding out the letter on a stick is properly socially distanced!
Yeah, Crystallography! (I am a scientist).
The formula on the first stamp seems really handwritten!
And I agree we all love the topic of the second set :)
First crystallography stamp I can remember - my exam finals contained a related question which I could not answer.
Never knew there was a year of Crystallography.. how cool! As Eva had mentioned, the formula looks nicely hand-written, as if it had come out of a notebook.
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