The orderly beauty of liquid crystals

They're in everywhere in our screens, but what are liquid crystals? 🖥️ How are they liquid? Or crystalline? In this video, we discover the colourful physics of ordered fluids! ↓ More infos and links in the description! ↓ ---------------------------------------­---------------------------- LINKS: French version:    • Les cristaux liquides : ordre et beauté   Subscribe to the channel :    / thelutetiumproject   Follow us on Twitter :   / theluproject   Visit our website: https://www.lutetium.paris/en ---------------------------------------­---------------------------- RELATED PUBLICATIONS: Patrick Oswald, Pawel Pieranski, Nematic and Cholesteric Liquid Crystals, Gordon and Breach (2000), https://bit.ly/3dov4ne Bill Hammack, LCD Monitor Teardown on the engineerguy channel (2011)    • LCD Monitor Teardown   Announcement of the Nobel Prize in Physics 2016,    • Announcement of the Nobel Prize in Physics...   Teresa Lopez-Leon, Les cristaux liquides : quand l’ordre et le désordre se rencontrent, groupe Traces video (in French, 2017),    • Les cristaux liquides : quand l’ordre et l...   Julien Bobroff, Microscope Polarisant, La Physique Autrement video (in French, 2016),    • microscope polarisant   Sophie Norvez's lectures on liquid crystals at ESPCI Paris Teresa Lopez-Leon's introductory seminars/lectures on liquid crystals at ESPCI Paris ---------------------------------------­---------------------------- STRUCTURE OF THE VIDEO: 00:00 What's a liquid crystal? 01:36 Elasticity of liquid crystals 02:00 Liquid crystals and polarized light 03:21 Birefringence 04:12 Liquid crystals in a polarizing microscope 04:56 Liquid crystal displays 06:09 Liquid crystals and topology 07:18 Conclusion ---------------------------------------­---------------------------- CREDITS: Host: Julie Godefroid Director: Hoon Kwon Writer: Guillaume Durey Science supervisor: Teresa Lopez-Leon Animator: Benjamin Alardin Sound mixer: Valentin Zorgnotti Editor: Guillaume Durey Studio, visual identity: Juliette Nier Theme music: Pierre David Production: Guillaume Durey, Mathias Kasiulis, Quentin Magdelaine ---------------------------------------­---------------------------- ACKNOWLEDGEMENTS: Collective Effects in Soft Matter team, Gulliver laboratory, https://www.ec2m.espci.fr/home/ Paul Boniface, Espace des Sciences Pierre-Gilles de Gennes, for his valuable advice, https://www.groupe-traces.fr/membre/p... Alexandre Darmon, former PhD student in the Gulliver lab, for his video of a phase transition in cholesteric liquid crystal shells. http://artinresearch.com/ ---------------------------------------­---------------------------- The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by: PSL Research University – https://www.univ-psl.fr ESPCI Paris – https://www.espci.fr Espace des sciences Pierre-Gilles de Gennes – https://www.espgg.org ESPCI Alumni – https://espci.alumni.paris Fonds ESPCI Paris – https://www.fonds-espci-paris.org/