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New wave at Maison Poincaré : Soliton

Maison Poincaré ?

Since its opening on 30 September 2023 in the Latin Quarter of Paris, Maison Poincaré has aimed to spark scientific curiosity in everyone—girls and boys alike—by making science accessible to even the most distant audiences. Featuring a permanent exhibition and a temporary exhibition space, the museum has set itself the goal of welcoming over 20,000 students each year, starting from age 12, with particular attention to young people from priority education areas. In this context, Maison Poincaré seeks to enhance its public activities by introducing an innovative feature: a mechanical soliton!

What is a soliton?

A soliton is a type of wave—an extraordinary phenomenon that travels long distances while maintaining its shape and speed, even after interacting with other waves. This type of wave can be found in various fields, such as water waves, optical fibres, and magnetic fields. What makes solitons fascinating is their stability: they behave somewhat like solid objects, remaining unaffected by external disturbances. Scientists study them closely, as they provide a foundation for understanding complex phenomena in oceanography (tidal bores, tsunamis, and rogue waves), nonlinear optics, quantum mechanics, and more.

The mechanical Soliton of Maison Poincaré

Maison Poincaré's Soliton will be a unique interactive exhibit located in the "Modelling" area of the museum, specifically within the section dedicated to the theme "Spectra and Waves". It will be installed beneath the interactive display on vibrating strings, which demonstrates the concept of linear waves commonly observed in acoustics. Maison Poincaré’s Soliton will draw inspiration from the mechanical soliton designed in the laboratory of physicist Thierry Dauxois. This exhibit features a chain of pendulums coupled by a long spring connecting them. By setting the pendulums in motion at one end, the propagation of a soliton is triggered. This setup allows visitors to observe this type of nonlinear wave without water or computers.

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Thanks to this installation, thousands of young people, particularly from priority education networks, will have the opportunity to explore science in a fun and accessible way.

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