initiated by Paul Ehrenfest in 1912
currently organized by Ana Achúcarro & Luca Giomi (read about its history)

Dinner participants: 25


Paul Steinhardt

Princeton University

May 22

7:30 p.m.


The second kind of impossible

Quasicrystals are exotic forms of matter with symmetries that were once thought to be mathematically impossible. The first known examples were synthesized in the laboratory over 35 years ago, but could Nature have beaten us to the punch? This talk will describe the decades-long search to answer this question, resulting in one of the strangest scientific stories you are ever likely to hear.

The Colloquium Ehrenfestii takes place Wednesday evenings starting at 19:30 hours in the main auditorium of the Oort building. Before the Colloquium, there is a common dinner in the canteen located on the ground floor of the Oort building. This dinner starts at 18:00 hours sharp and is free of charge, under the condition that one attends the colloquium and that one has made a reservation before noon on the Tuesday preceding the colloquium.

Recent colloquia have been recorded.

Meal registrations may close earlier, when 80 persons have signed up.

Colloquium Ehrenfestii Program 2019

16 Jan

Ben Feringa (University of Groningen)

The Art of Building Small

13 Mar

Ruth Durrer (University of Geneva)

Testing General Relativity with Cosmological Observations

22 May

Paul Steinhardt (Princeton University)

The second kind of impossible

05 Jun

Seth Lloyd (MIT)


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