The disdyakis triacontahedron, which has the most faces among the Archimedean and Catalan solids - and the most faces a die can have and still be usable. The edges form 15 great circles, and the die is perfectly numerically balanced: opposite faces always add up to 121, and the sum of every group of 10, 6, or 4 numbers around each vertex is the same for all groups of the same type.
Measure 50mm in diameter
Cut your cheese to perfection using this chopping board. The bamboo board has precise degree portions engraved on, as well as defined sizes for 'chunk', 'sliver', 'slice', 'hunk' and 'slab' for those who really like to know exactly what they're doing. Made from bamboo.Measurements: 17.5cm...
A vast range of crystal forms from Frederich Mohs' 1825 Treatise on Mineralogy, gorgeously arranged into a cloud of refracted colour. Mohs is of course mainly remembered for his Hardness Scale, used to this day. 100% cotton.Black t-shirt printed in full colour. Care: Machine wash...
Celebrate women working and achieving in STEM with this brilliant pin. Part of our Badges of Honour range. Enameled blue metal badge. Measures approx 3 cm long.
This set of enamel pins features the five platonic solids - believed to underlie the structure of the universe by Plato and a major theme of Euclid's Elements. Set of five enamel pins with rubber pin back.Approximately 2.5cm tall.