As a proof for a 40-year-old conjecture, Gábor Domokos and Gergő Almádi, members of our research group proved the existence of a mono-monostatic tetrahedron in a joint research with Robert Dawson, St. Mary’s University. Even in 1984, J. H. Conway conjectured that there might exist inhomogeneous tetrahedra with only one stable equilibrium. The present research proved that such tetrahedron with only one stable and one unstable equilibrium exists as well.
To illustrate the strange behaviour, a prototype named “Bille” is also presented to the public. Further details are provided by the Quanta magazine.
The story of Bille, the mono-monostatic tetrahedron
By