Cesium-133 Atomic Clock T-Shirt | Time's Favorite Element Size:M but it does make you
Cesium-133 Atomic Clock T-Shirt | Time's Favorite Element Size:M but it does make youDESCRIPTION When your friends show off watches that are "accurate to within seconds per month," you can now smile knowingly while tapping your chestbecause you're sporting the ultimate timekeeper. This shirt doesn't just tell timeit defines it with quantum mechanical precision. Our striking blue circular design showcases cesium 133, the element that literally determines what a "second" is. The atomic diagram isn't just for showit's the actual
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