Planck is my constant.
Finally, a relationship you can count on. 😂
For physicists, science teachers, engineers, students, and anyone whose idea of a dependable companion is a fundamental constant of quantum mechanics.
Featuring Planck’s constant:
h = 6.626 × 10⁻³⁴ J · s
A gloriously nerdy physics joke that will be immediately understood by exactly the people you want to understand it—and completely ignored by everyone else.
Printed on the soft, heavyweight Comfort Colors 1717 garment-dyed T-shirt for that broken-in, lived-in feel from day one.
Planck is my constant.
Unlike everything else in my life.
Product features
- 100% ring-spun US cotton — soft, long-lasting feel
- Garment-dyed for a vintage, lived-in color and texture
- Heavyweight 6.1 oz fabric with relaxed fit and pre-shrunk construction
- Double-needle stitching; tubular (no side seams) for durability and clean lines
- Size range S–4XL; sewn-in label and available in many colors
Care instructions
- Machine wash: cold (max 30C or 90F)
- Do not bleach
- Tumble dry: low heat
- Iron, steam or dry: low heat
- Do not dryclean
Product information: Comfort Colors® 1717, 2 year warranty in EU and Northern Ireland as per Directive 1999/44/EC
Warnings, Hazard: Made in Honduras
Care instructions: Machine wash: cold (max 30C or 90F), Do not bleach, Tumble dry: low heat, Iron, steam or dry: low heat, Do not dryclean
