Here is the Gömböc I had machined for my brother as a birthday gift.
#HappyBirthday Bro!

#304Stainless #5AxisCNC #NotEasy #Gomboc

For centuries, mathematicians believed that any convex, homogeneous object must have at least three points of stable equilibrium. This principle seemed unshakable-until the #Gömböc defied expectations.

3D printed gömböc emerged today.

Model seems viable by the looks of these brief tests.

#Gömböc #gomboc #geometry #equilibrium

Gömböc: 3d objects that only have one stable position
https://en.wikipedia.org/wiki/G%C3%B6mb%C3%B6c
#3dprinting #sculpture #gravity #gomboc #toys #+

@andreas_jechow a related fascinating thing:
a #Gömböc is a body which uprights itself and has only a single stable point of equilibrium.
Nature evolved this shape too, e.g. in the shells of Turtles, which helps them to get back on their feet in case they're flipped:
https://en.m.wikipedia.org/wiki/G%C3%B6mb%C3%B6c

@jens the corresponding geometric body with the same capabilities as a tortoise to never get really stuck on in its back is a #Gömböc:
https://en.wikipedia.org/wiki/G%C3%B6mb%C3%B6c

@Henrysbridge @Ruth_Mottram

Meilleur cadeau : un #gömböc ! Mieux qu'un culbuto, cet objet a une unique position d'équilibre stable et une unique position d'équilibre instable - qu'il quitte à la moindre perturbation. Mais en plus, il est homogène et convexe (deux points dans ou sur l'objet peuvent être reliés par une ligne droite qui reste à l'intérieur du gömböc).
Il tire son nom du hongrois "gömb" pour sphère, objet avec lequel il partage beaucoup de propriétés.
#mathematics

@GustavinoBevilacqua @rapitadaglialieni dei #gömböc commestibili 😂

Mannaggia!

Ho scoperto che le #galline di @rapitadaglialieni e @Yaku non fanno delle uova: fanno dei #gömböc :blob_dizzy_face: :blob_dizzy_face: :blob_dizzy_face:

https://invidious.snopyta.org/watch?v=rvVF5QWSYF4

Spiegone matematico:

https://en.wikipedia.org/wiki/G%C3%B6mb%C3%B6c