One of a series of t-shirts inspired from classic physics books and posters; Doppler's principle explains how frequency and wavelength change due to motion of the source or motion of the observer. This shirt is pre-shrunk and made from 100% cotton, and it's lovely and soft to wear.
*Organic Cotton option available in S,M,L,XL,XXL
Warning: Last items in stock!
This is one for the geeks, a T-shirt with a retro look inspired from classic physics books and the kind of posters you would see in laboratories and classroom walls. Doppler's principle explains how frequency and wavelength change due to motion of the source or motion of the observer. It's available in 100% brushed, ringspun cotton or eco-friendly 100% Organic Cotton (sizes S-XXL), just select your option when choosing your size and colour.
Cotton t-shirts are 150 g/m²(4.42 oz/yd²) and our Organic cotton T's are 155 g/m² (4.57 oz/yd²)
A size guide is included in the photo gallery, the measurements are in cms, XXL and 3XL sizes may take up to 3 days longer to arrive.
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