FYSICA

Morning

09.00 Registration desk Gorlaeus 'schotel' open / coffee & tea & FYSICA market

09.45 Welcome by moderator Clara Nellist, NNV chair Christa Hooijer and Sense Jan van der Molen of UL (location: C4/5, schotel)

09.50 Opening lecture: News from the Neutrino sky - Dorothea Samtleben (Nikhef/UL) 

10.20 Young Speakers Contest: 3 finalists

10.55 Coffee break & FYSICA market 

11.15 Award Ceremonies 'Natuurkundedocent van het Jaar 2025' & 'NNV hbo Jong Talentprijs'

11.30 - 11.35 Introduction Physica Prize winner Marjolein Dijkstra by Kareljan Schoutens, president of the Physica Foundation

11.35 - 12.15 Physica Prize 2025 Lecture: From Ordinary Colloids to Intelligent Soft Materials - Marjolein Dijkstra (UU)

Lunch break

12.15-13.45 Lunch & FYSICA market, including RINO show

12.30-13.30 Algemene Ledenvergadering NNV (room BE 0.08)

12.30-13.30 SPIN Bachelor project contest (BE 0.10)

12.30-13.30 Gain Insight with Multiphysics Modeling (sponsored) (EM 1.09)

Afternoon: parallel program, sessions and excursions 

History and foundation of physics (session 1): Oppenheimer and the ambivalence of physicists towards the industrial relevance of their discoveries (location: C4/5)

Energy and climate (1): Long Duration Energy Storage (LDES) (BM 1.23)

Students session (1): where to go for interesting MSc/PhD research? (DM 1.15)

Education session: the nature of physics (BM 1.33)

The birth of the Einstein Fountain (DM 1.19)

14.35-14.45 Break to join next session

14.45-15.35 Focus sessions second round

Active and Intelligent Soft Matter (location: BM 1.33)

Inclusion & Academic Freedom (DM 1.19)

History and foundation of physics (session 2): Quantum-safe cryptography and societal relevance of foundational thinking (C4/5)

Energy and climate (2): Defossilization of industrial plants (BM 1.23)

Students session (2): Discover the LION research labs (DM 1.15)

Excursions

13.45 - 14.35 Excursion to the Leidse instrumentmakers School (starting point Einstein fountain)

13.45 - 14.35 Excursion to the Fijn Mechanische Dienst en Elektronische Dienst (starting point Einstein fountain)

14.45 - 15.35 Excursion to the Leidse instrumentmakers School (starting point Einstein fountain)

14.45 - 15.35 Excursion to the Fijn Mechanische Dienst en Elektronische Dienst (starting point Einstein fountain)

Afternoon: plenary lecture and award ceremonies

15.35 - 16.05 Tea break and FYSICA market

16.05 Award Ceremonies NTvN, SPIN bachelor project contest and Young Speakers Contest

16.20 FYSICAI - The synergy of Physics and AI - Nobel Prize lecture Evert van Nieuwenburg (UL)

17.20 Closure of afternoon program by Clara Nellist, announcement FYSICA 2026

17.30 Drinks in De Fusie

Evening: dinner Gorlaeus building, evening program in downtown Leiden

18.00-19.30 Dinner

CHANGE OF TIMES: 18.50 and 19.15 Departure shuttle bus to downtown Leiden

The shuttle bus goes to parking Leiden Haagweg, close to the starting point of the evening activities.

19.30 Join and run the Singelloop

Join us for Leiden’s most popular sports event of the year, the famous Singelloop Leiden! Thousands of people, young and old, take to the streets to run the 6,5 kilometers around the city. The Singelloop starts at 19.30 hours, time and point of gathering to be announced. 

19.30 Visit Rijksmuseum Boerhaave

Especially for FYSICA visitors, Rijksmuseum Boerhaave opens its doors in the evening! From 19.30 to 21.30 hours, it is possible to wander through the Netherlands’ treasure house of science and medicine and winner of the European Museum of the Year Award 2019.

19.30 Excursion to the Old Observatory (Oude Sterrewacht)

In collaboration with L.A.D. ‘F. Kaiser’, the astronomy sub-group of the the Leidse study association De Leidsche Flesch, an excursion will be organized to the Oude Sterrewacht, the oldest universitary observatory in the world. Be quick, only 30 people can attend this event!

CHANGE OF TIME: 19.15 Walk and explore the Leiden wall formulas

Leiden has a particularly grand history in physical discoveries. That is what inspired physicists Sense Jan van der Molen and Ivo van Vulpen to set up a project together with Stichting Tegenbeeld to paint formulas originating in Leiden on walls in its historic centre. On the evening of FYSICA, you have the chance to stroll with Van der Molen and Van Vulpen along  groundbreaking formulas, all with a Leiden connection, such as the Einstein field equation, and hear what they can tell about them. The walk will finish at Rijksmuseum Boerhaave.  Starting point is 'Het Gerecht', close to Parking Leiden Haagweg.