Ivory tee shown back and front: back has a round spotted cow with its radius dimensioned under the words Assume a Spherical Cow; front has a small spherical cow.

Assume a Spherical Cow T-Shirt, Funny Physics Engineering Joke Tee, Frictionless Vacuum Science Gift

Comfort Colors 1717 / Ivory / S
$29.99
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Ivory tee shown back and front: back has a round spotted cow with its radius dimensioned under the words Assume a Spherical Cow; front has a small spherical cow.

Assume a Spherical Cow T-Shirt, Funny Physics Engineering Joke Tee, Frictionless Vacuum Science Gift

$29.99
Style
Color
Size

First, assume a spherical cow on a frictionless plane in a vacuum. The classic simplifying assumption, finally drawn properly: a perfectly round cow with spots, a face and four stubby legs, radius dimensioned at 0.52 m (yes, we checked: 600 kg at 1000 kg/m³), drag none, moo negligible, and a red-pencil "close enough."

What you get

  • Front: Left-chest spherical cow, "Assume a Spherical Cow · μ = 0 · In a Vacuum"
  • Back: "ASSUME A SPHERICAL COW" over a spherical cow inside a dotted VACUUM boundary on a frictionless plane (μ = 0), with r = 0.52 m dimension, givens m = 600 kg, ρ = 1000 kg/m³, V = 0.6 m³, Drag = none, Moo = negligible, and "Fig. 18"
  • Printed with premium DTF transfers and heat-pressed by hand in Charleston, SC

Choose your shirt

  • Comfort Colors 1717: heavyweight 6.1 oz garment-dyed cotton, relaxed fit (S–3XL)
  • Bella+Canvas 3001: lightweight 4.2 oz Airlume cotton, softer retail fit (S–3XL)

Colors may vary slightly by screen.

Care

Wash inside out in cold water, tumble dry low or hang dry, don't iron the print.

Production & disclosure

Designed by Elevated Designs LLC using digital design tools, with AI assistance. Printed and pressed to order in Charleston, SC.

Over-Engineered Co. · engineers of every discipline — designed by Elevated Designs and printed to order in Charleston, SC.

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