This Shirt Is Blue womens t-shirt

So if you could run towards this t-shirt with enough speed (and you're going to need to be running pretty fast, so best get those legs warmed up) you could potentially activate a Doppler shift in the electromagnetic spectrum and cause this red shirt to blue shift! Fascinating right?

So if you’re a bit of a cosmos geek and want to confuse the hell out of anybody who isn't, then check out this awesome blue t-shirt, only available in red!

We've got loads more other geeky designs to check out - science tshirts, maths t-shirts, IT tees, TV t-shirts, movie tshirts, and gamer tees, so no matter what your nerdy poison is, we've got you covered!