As the rod rotated, it traced a three-dimensional shape called the hyperboloid surface. The curved edges of this surface formed hyperbolic lines, enabling the rod to glide effortlessly from top to ...

What really helped, though, was adding a curved “waist”, making what’s technically known as a hyperboloid shape: “our findings identify a necessary ‘body type’ for stable hooping that ...

David round tables have a hyperboloid-shaped base in glass fiber with an internal structure in painted metal, covered in Longhi range leathers.

The resulting counter-flow means that no fan or the like is needed, and the hyperboloid shape of the cooling tower makes it incredibly strong despite having relatively thin walls. The use of a ...

David round tables have a hyperboloid-shaped base in glass fiber with an internal structure in painted metal, covered in Longhi range leathers.