the United States Postal Service is released a new stamp
yesterday that uses thermochromic ink to give us two different images on one stamp, the eclipse stamp is a commemoration of the total solar eclipse that will
cross the U.S. on August 21, the stamp image is a photograph taken by
astrophysicist Fred Espenak, aka Mr. Eclipse, of Portal, AZ, that shows a total
solar eclipse seen from Jalu, Libya, on March 29, 2006, in the first U.S. stamp
application of thermochromic ink, the Total Eclipse of the Sun Forever stamps
will reveal a second image. Using the body heat of your thumb or fingers and
rubbing the eclipse image will reveal an underlying image of the Moon (Espenak
also took the photograph of the Full Moon). The image reverts back to the
eclipse once it cools those of us that buy the stamps are advised to store the
stamps away from sunlight to preserve the effect. You can buy a special
envelope for them. The First-Day-of-Issue ceremony will be at the University of
Wyoming library in Laramie yesterday, during a summer solstice event, the
eclipse stamps should be available at post offices across the country soon.
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