This is "le ptyx labo"
c'est todi les ptyx qu'on spotche!

There is no small science. Any knowledge matters and deserves to be investigated. This is not nothing because this is the very aim of the physics. The physics is social. The way you think, the subject you choose are often guided by the people you meet (and by financial support). Give a chance to curiosity, this is never a bad idea.

Things had moved. GRASP changed. PtyX is on.

Ptyx is an hapax.

An hapaX is is a word or an expression that occurs only once within a context.

"Ptyx" was invented by a poet named Stéphane Mallarmé in his poem "Sonnet en X".

Mallarmé wanted a word that rhyme in "X".

Sur les crédences, au salon vide : nul ptyx
Aboli bibelot d'inanité sonore,
(Car le Maître est allé puiser des pleurs au Styx
Avec ce seul objet dont le Néant s'honore.)

ORCID: 0000-0002-9022-6948

Scholar

ResearchGate

RESEARCH TOPICS

Superconductivity

thermal properties

(before 2000)

Granular materials

electrical properties, silo

Physics of droplets

bouncing, leidenfrost, fibers

Antibubbles

Non linear Physics

bouncing object and locomotion

LECTURES

PHYS250: Experimental Statistical Physics

ESA Academy 2015-2018

TECHNIQUES

High speed imaging, tracking, PIV, electrical measurements, chain of measurements

High gravity environment (LDC at ESA)

EDUCATION

2015-... : FNRS senior research associate

2006-2014: FNRS research associate

2006: Assistant

Physics of droplets

2002-2005: FNRS post-doc researcher

Granular material: electrical properties

Fluid phenomenon: antibubbles

2000-2002: Assistant

Research about superconductor and magnetic field and start of granular material electrical properties

Supervisors: Prof. H.W. Vanderschueren

Prof. M. Ausloos

1996-2000: PhD. Student FRIA

Thesis about Thermal properties of high critical temperature superconductor.

Supervisor: Prof. M. Ausloos

SCIENTIFIC MISSIONS

2024: 84th and 85th ESA parabolic flights campaign, France : Thermal zero-g antibubbles.

2019: LDC hyper-gravity, ESTEC, The Netherlands (Wave turbulence)

2013 : 59th ESA parabolic flights campaign, France : Electrically charged droplets and collisions.

2013 : LDC hyper-gravity, ESTEC, The Netherlands (Spin your thesis: Leidenfrost)

2011 : LDC hyper-gravity, ESTEC, The Netherlands (Silo and hypergravity)

2009 : E. Falcon, Paris 7, France

2006: B. Castaing, ENS-Lyon, France

2004: A. Kudrolli, Clark University, USA

2003: D. Quéré, Collège de France, France

2001: A. Campbell, University of Cambridge, UK

CONFERENCE

Scientific board and organization µMAST-2016 in Brussels

Organization EUFOAM2018 in Liège

Organization DROPLETS2025 in Liège

Organization EUROMECH " Films, bubbles, droplets and phase change " in Metz (France) end of August 2025 by Michel Gradeck (co-chaired by Alidad Amirfazli)