University gifted groundbreaking mathematical object to mark bicentenary
51¸£ÀûÉç has been gifted a unique mathematical object known as a – the first known physical example of a new class of shapes called mono-monostatics.
The ³Òö³¾²úö³¦ is tangible proof of a mathematical theory, developed by Gábor Domokos and Péter Várkonyi from the Budapest University Technology and Economics, about the stability of solid objects. The ³Òö³¾²úö³¦ is a three-dimensional, homogenous, convex object that has exactly one stable and one unstable equilibrium, or balance point; if you put it down on a flat surface it will reorient itself until it reaches the one stable equilibrium point.
The mathematicians have chosen to gift one of the ³Òö³¾²úö³¦ pieces to the University with the unique serial number 1824, in honour of the University’s 200th anniversary which is being celebrated throughout 2024. ³Òö³¾²úö³¦ 1824 is sponsored by Mr Ottó Albrecht, who has funded the ³Òö³¾²úö³¦ donation programme for many years. The piece stands at 180mm tall and is made from plexiglass. It will be exhibited in the Mathematics Department located in the Alan Turing Building.
³Òö³¾²úö³¦ 1824 was presented to the University at a ceremony on 10 October, by H.E. Ferenc Kumin, ambassador of Hungary, and was accepted by , Vice-President and Dean of the Faculty of Science and Engineering and , Head of the Department of Mathematics. The ambassador also had the chance to have lunch with Hungarian staff and students at the University and took a tour of the robotics lab.
Since its discovery in 2007, many ³Òö³¾²úö³¦ pieces have been donated to renowned institutions worldwide, including Harvard University, the Beijing Institute of Mathematical Sciences, the Pompidou Centre and The University of Tokyo.
There are few ³Òö³¾²úö³¦ pieces in the UK; The University of Oxford, The University of Cambridge, Windsor Castle, The Crown Estate, University College London and Academia Europaea are the only institutions which currently have a ³Òö³¾²úö³¦ on display. 51¸£ÀûÉç’s ³Òö³¾²úö³¦ 1824 is the first ³Òö³¾²úö³¦ to be gifted to an institution in the North of England.
Professor Andrew Hazel, Head of the Department of Mathematics, said: “It is somewhat unusual to have a mathematical object whose proof of existence can be realised in such a tangible way. The ³Òö³¾²úö³¦ is visually interesting and stimulates discussion between staff, students and visitors.â€
We are thrilled to accept ³Òö³¾²úö³¦ 1824. Being included among other prestigious institutions who have been gifted a ³Òö³¾²úö³¦ is a true honour; and it holds a special significance in this bicentenary year of the University.
Although discovered in Hungary, the ³Òö³¾²úö³¦ has connections to 51¸£ÀûÉç. Some of the early research on the statics of solid bodies was pioneered by Sir Horace Lamb, who studied Mathematics at Owens College and was a Professor of Physics at the University between 1885 and 1920. Lamb wrote the influential textbook Statics, Including Hydrostatics and the Elements of the Theory of Elasticity, which describes methods that can be adapted to analyse the stability of the ³Òö³¾²úö³¦.
The ³Òö³¾²úö³¦ is also relevant for current research being undertaken at the University. Researchers working on granular flows and particle dynamics used the ³Òö³¾²úö³¦ as a test shape for computer codes, to verify the stability calculations used to analyse piles of grains.
H.E. Ferenc Kumin, ambassador of Hungary, said: “It is with great pride that we present the G1824, a remarkable embodiment of Hungarian ingenuity and problem-solving, in honour of 51¸£ÀûÉç's foundation. More than a scientific marvel, for us, Professor Domokos' ³Òö³¾²úö³¦ represents Hungarian thinking and creative problem solving.â€
Having a ³Òö³¾²úö³¦ at the University of 51¸£ÀûÉç symbolises the creative depth that unites great minds across borders, celebrating the pioneering spirit of a world-leading institution renowned for ground-breaking discoveries.
History of the ³Òö³¾²úö³¦
In geometry, a body with a single stable resting position is called monostatic; the term mono-monostatic has been coined to describe a body which additionally has only one unstable point of balance.
The weight of the ³Òö³¾²úö³¦ is distributed evenly; and no simpler homogeneous shape exists with these properties. In fact, it is not possible for a convex, homogenous, solid three-dimensional object to have fewer than two equilibria.
The question of whether it is possible to construct a three-dimensional body which is mono-monostatic, homogenous and convex, was posed by Russian mathematician Vladimir Igorevich Arnold at a conference in 1995, in Hamburg.
In 2007, Gábor Domokos and Péter Várkonyi proved Arnold’s conjecture correct and created the first physical example, which became known as the ³Òö³¾²úö³¦. The discovered mono-monostatic shape is the most sphere-like shape, apart from the sphere itself; its name is a diminutive form of ²µÃ¶³¾²ú, meaning ‘sphere’ in Hungarian.
³Òö³¾²úö³¦-like shapes can be seen in nature. Biological evolution developed a similar shape in the form of the shell of the , which self-rights when turned upside down. Domokos and Várkonyi spent time studying tortoises in Hungary, attempting to explain the shape and function of their shells.
After its creation in 2007, a series of individual ³Òö³¾²úö³¦ models were launched. Each individual ³Òö³¾²úö³¦ carries its own unique serial number, between 1 and the current year, and has only been produced once.
The first individually numbered ³Òö³¾²úö³¦ model (³Òö³¾²úö³¦ 001) was presented by Domokos and Várkonyi as a gift to Vladimir Igorevich Arnold on his 70th birthday in 2007; Professor Arnold later donated ³Òö³¾²úö³¦ 001 to the Steklov Institute of Mathematics, where it is currently on exhibit.