- Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester
- Machine wash cold with like colors, dry low heat
- Funny physics quote as a cool christmas or birthday gift idea for all physicists, physics teachers at school, nerds, geeks and physics students at college or university who graduated or making their degree.
- The Doppler Effect - For all lab persons and researchers who care about atoms, quantum and particles.
- Lightweight, Classic fit, Double-needle sleeve and bottom hem
Doppler Effect T-Shirt
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