Cesium-133 Atomic Clock T-Shirt | Time's Favorite Element

DESCRIPTION

When your friends show off watches that are "accurate to within seconds per month," you can now smile knowingly while tapping your chest—because you're sporting the ultimate timekeeper. This shirt doesn't just tell time—it 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 show—it's the actual hyperfine transition that keeps atomic clocks ticking with an accuracy that would make Swiss watchmakers weep into their tiny screwdrivers. The bold declaration "TIME'S FAVORITE ELEMENT" isn't just clever wordplay; it's a scientifically defensible statement since 1967, when cesium officially became the international arbiter of chronological disputes.

While others check their phones for the time, you'll be wearing the reference standard by which all other clocks are calibrated. Consider it both fashion statement and public service announcement.

PERFECT FOR

• Physicists who are never, ever late (±1.0 × 10^-12 seconds)
• Chronobiologists tired of explaining their field isn't about wristwatches
• Anyone who has strong opinions about leap seconds
• The person who synchronizes all the office clocks
• People who have uttered "actually..." when someone mentions quartz accuracy
• Punctual individuals seeking quantum-mechanical validation

TECHNICAL DETAILS

• Premium ringspun cotton that, unlike cesium atoms, may change state after washing
• Vibrant blue atomic clock face printed with discharge ink for durability
• Pre-shrunk to ensure consistent sizing across parallel universes
• Double-needle sleeve and bottom hems engineered to outlast several half-lives
• Shoulder-to-shoulder taping to maintain structural integrity during time dilation
• Available in sizes S-2XL (measured with atomic precision)

BACKSTORY

This design oscillated into existence during a heated debate about whether someone was "technically late" to a meeting. Our head designer, armed with excessive knowledge about international time standards, explained that without cesium-133 atomic clocks, we wouldn't be able to define the second with enough precision to argue about someone being two minutes late. The room fell silent as everyone contemplated how their daily social conflicts depended entirely on the behavior of a specific isotope of a relatively obscure element.

Further research revealed that the 9,192,631,770 oscillations of cesium-133 that define one second were chosen in 1967, making it not just scientifically accurate but vintage—appealing to both laboratory directors and hipsters simultaneously.

• 100% ring-spun cotton
• Sport Grey is 90% ring-spun cotton, 10% polyester
• Dark Heather is 65% polyester, 35% cotton
• 4.5 oz/yd² (153 g/m²)
• Shoulder-to-shoulder taping
• Quarter-turned to avoid crease down the center
• Blank product sourced from Bangladesh, Nicaragua, Honduras, Dominican Republic, Haiti or Guatemala

Disclaimer: Due to the fabric properties, the White color variant may appear off-white rather than bright white.

Age restrictions: For adults
EU Warranty: 2 years
Other compliance information: Meets the flammability, lead, cadmium, phthalates and formaldehyde level requirements.

In compliance with the General Product Safety Regulation (GPSR), Technium Foundry LLC and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 2201 Gibson Rd., Jacksonville, FL 32207, USA or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.

Size guide