This is a fun shirt in a unique style for anyone interested in or working with studying quantum entanglement. The graphic is done in retro cartoon style and includes a vintage-look font for the caption QUANTUM ENTANGLEMENT.

Quantum entanglement, of course, is a physical phenomenon that occurs when a group of particles are generated, interact, or share spatial proximity in a way such that the quantum state of each particle of the group cannot be described independently of the state of the others, including when the particles are separated by a large distance (thanks Wikipedia). The graphic on this shirt simplifies the idea in bold black and white. 

Get this Quantum Entanglement t-shirt design on a basic white t-shirt as shown, or pick a different color, cut, or style from Zazzle's vast catalog.

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This funny t-shirt is a great gift idea for anyone who works as an engineer. The graphic tee for Engineers features a simple cartoon image of a human brain along with certain areas noted, like the "management BS sensor", the "coffee location sensor", and the "sarcasm cortex". The entire design is titled ENGINEER'S BRAIN in bold yellow text.

This comfortable casual fit t-shirt is made of cotton or a cotton-polyester blend. The yellow and white design looks great on a black shirt as shown here, or choose from other dark color tees. The shirt is also available in cuts for women or youth.

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Is the glass half empty, or half full? An optimist and a pessimist allegedly would have different answers, but in reality, the glass is always completely full, as this funny science geek t-shirt explains.

This graphic design shows a simple glass of water. The half that is full of water is noted, as is the other half which is full of air. Thus, technically, the glass is always completely full, not half of anything. This funny, sarcastic science-based t-shirt is a fun gift idea for those who follow knowledge!

See below for other fun graphic takes on this geeky trope. Most of these shirt designs can be purchased on a different colored shirt from the one featured, so you can pick the color that works best for you!

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This fun t-shirt features text surrounding an illustration of an atom with a cute red smiley face inside. The text, in white and red, reads in all caps: Never Trust an Atom | They Make Up Everything. A truer statement there never was. 

This funny science geek t-shirt is available in black as shown as a unisex crew neck. There are more options below. For this garment, choose from sizes XS to 3XL. 

This shirt is made of comfortable and soft 100% ringspun cotton.

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This darling design is perfect for anyone who is interested in being an astronaut when they grow up, or when they finish school or military training. Future Astronautolotl is also great for future or current space industry students, and anyone who looks to the stars and outer space for inspiration!

The featured graphic is a cartoon image is of an axolotl wearing a white spacesuit complete with bubble-style space helmet. You can see the little paedomorphic salamander's tail sticking out of the space suit (not sure how that would work, technically, but it sure is cute). The space axolotl sits on a cheesy sliver of moon.

The graphic is captioned "Future Astronautolotl" using a fun stylized text in all capital letters. Both the text slogan and the cartoon design are distressed for a vintage look.

Shown here on a unisex sweatshirt, this unique design can be purchase on a variety of other apparel and gift options; see some examples below.

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The abacus is an ancient form of calculating tool also known as a counting frame. While the exact origin of the abacus is unknown, early frames probably didn't include letters formed in the QWERTY keyboard style as seen on this shirt.

The abacus t-shirt design here features a fantastical abacus framed inside of what looks like a computer monitor. There is even a corded mouse attached to the frame. The rows of beads, used to represent numbers on an abacus, appear here with numbers written on them, as well as letters as you'd find on a modern QWERTY keyboard. 

This QWERTY B.C. t-shirt is fun for math nerds, computer geeks, and others interested in the abacus and its different forms. Available from Zazzle, this design can be purchased on a huge variety of apparel styles and other novelty gift items in Zazzle's catalog.

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