COLORADO SPRINGS, Colo. – A Colorado company is behind a clever color-changing postage stamp that commemorates next week’s total solar eclipse. Chromatic Technologies Inc. in Colorado Springs created ...
The United States Postal Service has been in existence since 1792, but that doesn’t mean this centuries-old agency isn’t trying to keep up with the times–at least when it comes to stamp design. In ...
Researchers say we don’t put on enough sunscreen. A Seattle startup has come up with a potential fix: an invisible ink stamp that notifies you when it’s time to re-apply. Michael Croix, a longtime ...
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