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A closer look at the world
Designs inspired by the equations used to describe energy, waves and quantum states. Pick a familiar idea, or one you are still working out.
Einstein’s mass–energy relation is short enough to recognise at a glance. Schrödinger’s equation needs more room: it describes the time evolution of a quantum state. Wavelet methods examine signals at different scales. This collection puts those ideas on everyday T-shirts.
You do not need a physics degree to like a design. If you want to understand the notation, the Learn section is a place to start. Its AI-assisted explanations should be checked against a textbook or original source when the details matter.
The product page shows the actual print placement and available colours. Choose a size using the measurements rather than assuming every shirt fits the same. Each order is printed by Printful, so allow for both production and shipping. For a conference, birthday or other fixed date, read the estimates before you buy; they are not guaranteed arrival dates.