Theories and Proofs T-Shirt

This Sidney Harris Mars Probe cartoon demonstrates that all is fair in love, war, and interplanetary exploration.

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Miracle Shirt $24.00 – $47.00

Small Medium Large X-Large XX-Large +$1.00 Sweatshirt Small Sweatshirt Medium Sweatshirt Large Sweatshirt X-Large Sweatshirt XX-Large +$2.00

Anyone can make fun of science and education. Sidney Harris finds the humor that comes from within those fields.

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Quantum Mechanic T-Shirt $24.00 – $25.00

Quantum mechanics meets Detroit iron.

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Principles of Flight T-Shirt $24.00 – $25.00

Author and cartoonist Sidney Harris muses that while ostriches can’t fly, they are taking the necessary steps to learn how.

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Glows in the dark

Stalactites T-Shirt $24.00 – $25.00

Purple

Glow-in-the-dark design answers the most common question asked by visitors to caves.

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Glows in the dark

Summer Star Chart T-Shirt $24.00 – $25.00

Navy

Small Medium Large X-Large XX-Large +$1.00 Youth Small 6-8 Youth Medium 10-12 Youth Large 14-16

Printed upside down in glow-in-the-dark ink so the wearer can really use it.

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Imagination T-Shirt $24.00 – $25.00

“Imagination is more important than knowledge,” a tribute to the genius of Einstein.

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Spleen T-Shirt $24.00 – $25.00

White