Sunday Stamps: Geology

It's a stressful time right now in the USA,with corona virus everywhere it seems, and the peak of sickness still a week or two away.

To get away from this I looked in my computer files and found a bunch of scans of mineral stamps.  I'll share just two from Kenya.

Amethyst, in natural crystal form and polished as a gem, and

tourmaline, in a rock and also as a gem.  Amethyst is the purple form of quartz, and tourmaline is a complex silicate with boron and beryllium in its structure.

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Viridian

Sunday Stamps: Architecture

In which I republish a stamp and commentary from 2012 or so.  A great stamp from Italy.

This stamp shows a hallway in the Palazzo Spada, which was originally built in 1540.  Why does it deserve a stamp?  Let's let Wikipedia explain.

"The palazzo was purchased by Cardinal Spada in 1632. He commissioned the Baroque architect Francesco Borromini to modify it for him, and it was Borromini who created the masterpiece of forced perspective optical illusion in the arcaded courtyard, in which diminishing rows of columns and a rising floor create the visual illusion of a gallery 37 meters long (it is 8 meters) with a lifesize sculpture at the end of the vista, in daylight beyond: the sculpture is 60 cm high. Borromini was aided in his perspective trick by a mathematician."

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Viridian

Sunday Stamps March 22 2020

I too have been watching the news too much.  I hope to get out tomorrow and see the signs of Spring in our neighborhood.
Here is my stamp for today, from the US Postal Service.

Photograph by Mark Laita.  The image is meant to show healing and growth (and hope) from PTSD.

More information:  https://store.usps.com/store/product/buy-stamps/healing-ptsd-S_572104.

I thought it was a good choice for today.
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Viridian

Sunday Stamps: Celebrations

Time for Sunday Stamps!  The theme is celebrations.
Once again I am pulling my stamp from the US Postal Service.  A stamp to cover anything you might be celebrating.

The USPS also has stamps for Christmas, Hanukkah, Diwali, and Eid.
Hunkering down here in the American Midwest for the duration, and preparing for teaching my classes on line, starting March 23.  I feel sorry for people whose lives have been disrupted greatly.  Mine is only slightly inconvenienced.

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Viridian