View A superellipse shaped brass tray by Piet Hein on artnet. Browse upcoming and past auction lots by Piet Hein.

Caracalla Just Added More Dates For “One Thousand and One Nights” & You Def Don’t Want To Miss It! July 5, 2025 ...

The structure of a TEM horn with new plate separation and width profiles is described. It is shown that the combination of a superellipse for the separation function, and a new function for the pate ...