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!