Add/Subtract T-Shirt

Navy

Small Medium Large X-Large XX-Large +$1.00 Youth Small 6-8 Youth Medium 10-12 Youth Large 14-16 Sweatshirt Small Sweatshirt Medium Sweatshirt Large Sweatshirt X-Large Sweatshirt XX-Large +$2.00

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

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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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Theories and Proofs T-Shirt $24.00 – $25.00

So many theories, so little proof.

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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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Opposites Attract T-Shirt $24.00 – $25.00

White

Ionic attraction at its best.

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Printed Front and Back

Black Hole Shirt $24.00 – $47.00

Black

Small Medium Large X-Large XX-Large +$1.00 Youth Small 6-8 Youth Medium 10-12 Youth Large 14-16 Sweatshirt Small Sweatshirt Medium Sweatshirt Large Sweatshirt X-Large Sweatshirt XX-Large +$2.00

Front: Black Hole with Schwarzschild’s Radius / Back: Maxwell’s Equations of Light

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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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Glows in the dark

Tesla T-Shirt $24.00 – $25.00

Dark Chocolate