New Eclipse Stamp Transforms With a Touch

Rodiano Bonacci
Giugno 20, 2017

The U.S. Postal Service will be issuing special eclipse stamps that will transform when you touch them.

The U.S. Postal Service is issuing a one-of-a-kind stamp Tuesday ahead of the coast-to-coast, total eclipse set to appear on August 21.

Alcalá used a photograph of the total eclipse from March 29, 2006, captured by Fred Espenak in Jalu, Libya. The postage stickers are printed with thermochromatic ink, letting snail mailers and stamp enthusiasts change the front image with the swipe of a finger.

It will be the first total solar eclipse visible in the contiguous United States since 1979 and the first one coast to coast since 1918.

Using the body heat of your thumb or fingers and rubbing the eclipse image on the stamp will reveal an underlying image of the Moon. This means that when someone touches it, their body heat will create a reaction that changes the circular eclipse image from black to clear and reveal a moon image beneath. The U.S. Postal service wants to celebrate the event in a unique way.

The stamp is already available for preorder online and will be on sale throughout the country starting on Tuesday.

The Total Eclipse of the Sun Forever stamp commemorates the upcoming August 21 eclipse.

A total eclipse of the Sun occurs when the Moon completely blocks the visible solar disk from view, casting a shadow on Earth.

The back of the stamp pane provides a map of the August 21 eclipse path and times it may appear in some locations. The 70-mile-wide shadow path of the eclipse, known as the "path of totality", will traverse the country diagonally, appearing first in OR (mid-morning local time) and exiting some 2,500 miles east and 90 minutes later off the coast of SC (mid-afternoon local time) passing through portions of 14 states.

Columbia will be an area that sees the total eclipse for the longest period of time. At the same time with the summer solstice celebration, the stamp will receive an issuing ceremony held at the Art Museum of University of Wyoming.

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