Math Teachers' Pencil/Straw Holder/ Stand, Hyperboloid, Ruled Surface
cults3d
Math Teachers' Pencil/Straw Holder /Stand, Hyperboloid, Ruled Surface This display showcases a classic ruled surface (hyperboloid) using classroom pencils or straws, inspired by David Hilbert's famous book on imagination and geometry. It comes in four versions: two hole diameters (8.5mm and 9.5mm), single or dual rings, each with an outer diameter of 127mm or 129mm respectively. The holder can accommodate up to 48 pencils or straws. Once some pencils are inserted, try lifting the ring slowly upwards and allowing the pencils to drop slightly for a symmetrical structure. Enjoy experimenting and don't get frustrated when things don't work out as expected.
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