Add/Subtract T-Shirt

The Part I Hate T-Shirt $24.00 – $25.00

Scientific geniuses are human, too. This t-shirt is for everyone who remembers what it was like to solve a problem at the blackboard.

You Want Proof T-Shirt $24.00 – $25.00

Featured on the cover of Sidney Harris’s You Want Proof book of science cartoons.

Einstein Simplified T-Shirt $24.00 – $25.00

Purple

Einstein simplified, in three easy steps.

Women Scientists T-Shirt $24.00 – $25.00

White

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

Celebrating the important contributions in science made by women. Comes with a card describing the achievements of all five women.

Glows in the dark

Winter 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.

Missing Mars Lander T-Shirt $24.00 – $25.00

NASA asks for help from the public in finding their missing Mars Lander.

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.

Maid T-Shirt $24.00 – $25.00