Les photons ont-ils la notion du temps ? feat. Etienne Klein
Do photons have a notion of time? feat. Etienne Klein
★
★
★
★
★
5/5
Tuit catalog
Synthesis notes of video analyses, assessed and condensed, in French and English.
53,137 tuit
·
964 channels
·
42 domains
·
Last update: Oct 31, 2026
Agriculture & Food
163
AI — Models & Research
4378
AI — News & Applications
2099
AI & Society
1147
Archaeology
139
Arts & Architecture
1454
Astronomy & Cosmology
3689
Biology
2170
Chemistry
343
Climate & Ecology
1047
Computing & Cybersecurity
4168
Control & Robotics
377
Earth Sciences & Geography
297
Economics & Finance
3730
Education
774
Energy
1471
Engineering & Technology
3297
Foresight & Science Fiction
345
Geopolitics & Defence
573
History
758
Hobbies & Practical
397
Language & Linguistics
318
Law & Justice
583
Literature & Writing
941
Mathematics
2309
Media & Information
302
Medicine & Health
3148
Neuroscience
441
Paleontology
98
Personal Development
1050
Philosophy & Ethics
870
Physics
3506
Politics & Institutions
718
Psychology
633
Religion & Beliefs
255
Science — General & History
1823
Society & Culture
1139
Space Exploration
914
Sports
90
Transport & Mobility
173
Urban Planning & Mobility
95
Video Games
915
JMP
Abnormal psychology
20
VSC
Advice on careers and achieving success
108
TRP
Aerospace and aviation technology
892
PBF
Algebra
261
PBMW
Algebraic geometry
155
PBPD
Algebraic topology
74
UMB
Algorithms and data structures
78
KNBT
Alternative and renewable energy industries
134
THV
Alternative and renewable energy sources and technology
173
MKJD
Alzheimer’s, dementia, Parkinson’s disease and other neurodegenerative diseases
68
QDHA
Ancient Greek and Roman philosophy
52
NHC
Ancient history
34
JBFU
Animals and society
23
PBW
Applied mathematics
20
TTB
Applied optics
45
NKDS
Archaeological sites
34
NK
Archaeology
43
NKD
Archaeology by period
29
AM
Architecture
34
UYQD
Artificial general intelligence (AGI)
49
UYQ
Artificial intelligence (AI)
2098
LNQH
Artificial intelligence law and regulations
22
VSPM
Assertiveness, motivation, self-esteem and positive mental attitude
422
TTDS
Astronautics
990
PGG
Astronomical observation: observatories, equipment and methods
114
PG
Astronomy, space and time
918
PHVB
Astrophysics
122
PHM
Atomic and molecular physics
74
MKJA
Autism Spectrum Disorder
20
TJFM
Automatic control engineering
71
TRC
Automotive technology and trades
23
TRPS
Aviation skills and piloting
22
KFFK
Banking
23
THYB
Battery technology
164
PBTB
Bayesian inference
31
PSB
Biochemistry
311
RNCB
Biodiversity
34
PSAD
Bioethics
38
DNBH
Biography: historical, political and military
82
DNBM
Biography: philosophy and social sciences
20
DNBR
Biography: royalty
26
DNBT
Biography: science, technology and medicine
67
DNBL
Biography: writers
39
PS
Biology, life sciences
30
MQW
Biomedical engineering
24
PHVN
Biophysics
29
TCB
Biotechnology
63
TNK
Building construction and materials
25
KJ
Business and Management
54
KJJ
Business and the environment; sustainable approaches to business
42
KJD
Business innovation
39
KJC
Business strategy
42
PBKA
Calculus
43
PBK
Calculus and mathematical analysis
64
MJD
Cardiovascular medicine
35
JNR
Careers guidance
37
PSAN1
Cellular and molecular neuroscience
22
PSF
Cellular biology (cytology)
130
JPQB
Central
58
PN
Chemistry
27
MJCL2
Chemotherapy
26
JMC
Child, developmental and lifespan psychology
28
AMVD
City and town planning: architectural aspects
32
NHWR3
Civil wars
21
PHD
Classical mechanics
196
RNPG
Climate change
224
RBPC
Climatology and climate modelling
37
MBGR1
Clinical trials
23
UTC
Cloud computing
26
GPJ
Coding theory and cryptology
41
JMR
Cognition and cognitive psychology
136
PSAN5
Cognitive and behavioural neuroscience
246
GTK
Cognitive studies
40
NHTW
Cold wars and proxy conflicts
20
PBV
Combinatorics and graph theory
54
GTC
Communication studies
35
TJK
Communications engineering
39
DSM
Comparative literature
23
LNCH
Competition law
29
PBKD
Complex analysis, complex variables
60
PSAX
Computational biology
101
KNTV
Computer and video game industry
217
UYF
Computer architecture and logic design
119
URH
Computer fraud and hacking
272
UDX
Computer games
635
UGG
Computer games design
237
UK
Computer hardware
33
UYM
Computer modelling and simulation
23
UT
Computer networking and communications
25
UY
Computer science
63
UR
Computer security
749
URJ
Computer viruses, Trojans and worms
30
UYQV
Computer vision
119
PHFC
Condensed matter physics (liquid state and solid state physics)
135
RNKH
Conservation of wildlife and habitats
26
JBGX
Conspiracy theories
52
LNDX
Constitution
32
VFJB3
Coping with
20
KFFH
Corporate finance
22
JPZ
Corruption in politics, government and society
32
PGK
Cosmology and the universe
1044
CBV
Creative writing and creative writing guides
20
JKVF
Criminal investigation and detection
41
GPH
Data science and analysis
39
GTS
Decolonisation of knowledge
48
KCM
Development economics and emerging economies
66
GTP
Development studies
42
PSC
Developmental biology
40
MBNH3
Dietetics and nutrition
27
PBMP
Differential and Riemannian geometry
40
PBKJ
Differential calculus and equations
95
UBJ
Digital and information technologies: social and ethical aspects
1141
UB
Digital and Information technology: general topics
47
UXA
Digital Humanities
50
UD
Digital Lifestyle and online world: consumer and user guides
20
KCVM
Digital or internet economics
48
WNA
Dinosaurs and the prehistoric world: general interest
72
JPSD
Diplomacy
36
JBFM
Disability: social aspects
26
JBCT5
Disinformation and misinformation
74
KJDD
Disruptive innovation
22
ATFR
Documentary films
23
RNFD
Drought and water supply
25
PHDT
Dynamics and statics
81
QDHC
East Asian and Indian philosophy
29
PSAF
Ecological science, the Biosphere
49
KCX
Economic and financial crises and disasters
37
KCA
Economic theory and philosophy
35
KC
Economics
21
JN
Education
28
JNDH
Education: examinations and assessment
31
JNK
Educational administration and organization
21
JNV
Educational equipment and technology, computer-aided learning (CAL)
76
JNC
Educational psychology
27
JNF
Educational strategies and policy
28
JPHF
Elections and referenda
46
TRV
Electric vehicles
69
THR
Electrical engineering
70
KNBL
Electrical power generation and distribution industries
276
PHK
Electricity, electromagnetism and magnetism
278
TJFD
Electronic devices and materials
231
TJFC
Electronics: circuits and components
181
PHDB
Elementary mechanics
37
VSPQ
Emotions and emotional intelligence
24
MJG
Endocrinology
24
PHDY
Energy
26
LNCR
Energy and natural resources law
39
THYC
Energy efficiency
65
KNB
Energy industries and utilities
222
RNFY
Energy resources
55
THY
Energy, power generation, distribution and storage
379
TGMB
Engineering thermodynamics
25
TBC
Engineering: general
20
TGMF
Engineering: Mechanics of fluids
23
TGMD
Engineering: Mechanics of solids
24
UFL
Enterprise software
55
KJH
Entrepreneurship
152
KCVG
Environmental economics
108
MBNH2
Environmental factors
51
RND
Environmental policy and protocols
204
RNA
Environmentalist thought and ideology
80
MBNS
Epidemiology and Medical statistics
124
SXE
eSports
24
QDTQ
Ethics and moral philosophy
52
PSVP
Ethology and animal behaviour
37
PBMH
Euclidean geometry
43
NHD
European history
27
PSAJ
Evolution
174
PSXE
Evolutionary anthropology
92
UYQE
Expert systems
27
JPFQ
Far-right political ideologies and movements
20
ATFG
Film guides and reviews
107
ATFA
Film history, theory or criticism
45
ATFN
Film: styles and genres
342
KFF
Finance and the finance industry
36
KFFF
Financial technology (fintech)
36
RNFF
Food security and supply
36
PBKF
Functional analysis and transforms
29
PGM
Galaxies and stars
339
UMK
Games development and programming
43
JBSF
Gender studies, gender groups
26
JBSF1
Gender studies: women and girls
100
MKZV
Gene therapy
40
GTZ
General studies and General knowledge
35
UYQF
Generative artificial intelligence
2396
TCBG
Genetic engineering
50
PSAK
Genetics (non-medical)
651
RBG
Geology, geomorphology and the lithosphere
28
PBM
Geometry
21
PHVG
Geophysics
38
JPSL
Geopolitics
312
THVG
Geothermal energy and power
37
PHDV
Gravity
33
KFFS
Green finance
58
PBG
Groups and group theory
105
MJF
Haematology
20
MBP
Health systems and services
37
JBFN
Health, illness or addiction: social aspects
24
VFMD
Health: Diets and nutrition
23
TNKH
Heating, lighting, ventilation
20
MJJ
Hepatology
40
JNM
Higher education, tertiary education
240
RBGF
Historical geology and palaeogeology
51
NHAH
Historiography
34
NH
History
41
AGA
History of art
40
UBB
History of Computing, digital and information technologies
49
TBX
History of engineering and technology
28
JBCC9
History of ideas
20
PBX
History of mathematics
34
NHQ
History of other geographical groupings and regions or specific cultures
26
PDX
History of science
159
KJZ
History of specific companies
32
NHK
History of the Americas
55
NHT
History: specific events and topics
26
JBFD
Housing and homelessness
21
PSX
Human biology
27
JPVH
Human rights, civil rights
42
THD
Hydrogen technologies
61
THVH
Hydropower
25
TTBM
Imaging systems and technology
26
MJCM
Immunology
101
PDR
Impact of science and technology on society
124
AMB
Individual architects and architectural firms
32
AGB
Individual artists, art monographs
35
ATFB
Individual film directors, film-makers
30
PDG
Industrial applications of scientific research and technological innovation
53
MJCJ
Infectious and contagious diseases
54
KNTX
Information technology industries
343
JWD
Information warfare
32
GTV
Institutions and learned societies: general
34
PBKL
Integral calculus and equations
26
GT
Interdisciplinary studies
21
KCL
International economics
20
JPSN
International institutions
26
JPS
International relations
25
KCLT
International trade and commerce
54
ATN
Internet and digital media: arts and performance
52
UDB
Internet guides and online services
20
UBW
Internet: general works
40
JMHC
Interpersonal communication and skills
27
DNPB
Interviews
45
KFFM
Investment and securities
140
KJMV3
IT and information systems management
40
VSCB
Job hunting
23
KCF
Labour
91
PHJL
Laser physics
50
TTBL
Laser technology and holography
22
PSA
Life sciences: general issues
22
DSRC
Literary companions, book reviews and guides
34
DSBB
Literary studies: ancient, classical and medieval
23
DSK
Literary studies: fiction, novelists and prose writers
77
DSB
Literary studies: general
25
DSC
Literary studies: poetry and poets
50
DSA
Literary theory
30
UYQM
Machine learning
1175
KCB
Macroeconomics
23
KJMB
Management: leadership and motivation
66
PSPM
Marine biology
24
NHTM
Maritime history
34
TGM
Materials science
46
MKCM
Materno-foetal medicine
41
PHU
Mathematical
166
PBCD
Mathematical logic
114
PBWH
Mathematical modelling
53
UYA
Mathematical theory of computation
245
PB
Mathematics
164
MFKH3
Maturation and ageing
72
JBCT
Media studies
26
JBCT1
Media studies: internet, digital media and society
70
JBCT4
Media studies: journalism
90
MBPM
Medical administration and management
23
MBF
Medical and health informatics
65
MFN
Medical genetics
176
MKS
Medical imaging
21
MBGL
Medical laboratory testing and techniques
21
PHVD
Medical physics
20
MBGR
Medical research
60
MB
Medicine
23
RBPM
Meteorology
35
PSG
Microbiology (non-medical)
63
JBFH
Migration, immigration and emigration
31
JWK
Military and defence strategy
45
NHWR9
Military history: post-WW2 conflicts
20
UMS
Mobile and handheld device programming
23
UDT
Mobile phones and smartphones: consumer
42
PSD
Molecular biology
185
KCBM
Monetary economics
80
JNAM
Moral and social purpose of education
23
GLZ
Museology and heritage studies
54
TBN
Nanotechnology
33
UYX
Natural computing
900
RNR
Natural disasters
26
UYQL
Natural language and machine translation
153
WN
Nature and the natural world: general interest
47
UTN
Network security
63
UTP
Networking standards and protocols
26
UYQN
Neural networks and fuzzy systems
448
MKJ
Neurology and clinical neurophysiology
58
PSAN
Neurosciences
125
KNTP2
News media and journalism
24
PNRL
Nuclear chemistry, photochemistry and radiation
26
RNQ
Nuclear issues
30
MKR
Nuclear medicine
66
PHN
Nuclear physics
112
THK
Nuclear power and engineering
204
PBH
Number theory
191
PBKS
Numerical analysis
41
MQC
Nursing
21
MQCA
Nursing fundamentals and skills
38
RBKC
Oceanography (seas and oceans)
55
MJCL
Oncology
131
KJSG
Online marketing
27
MJQ
Ophthalmology
20
PHJ
Optical physics
178
PBU
Optimization
33
TTMW
Ordnance, weapons technology
21
PNN
Organic chemistry
66
RBX
Palaeontology
98
MKB
Palliative medicine
35
UYFP
Parallel processing
27
PHP
Particle and high-energy physics
139
GTU
Peace studies and conflict resolution
41
MBNH
Personal and public health
22
VSB
Personal finance
51
UDA
Personal organization software and apps
20
KJMV2
Personnel and human resources management
37
KNBP
Petroleum, oil and gas industries
93
MKG
Pharmacology
71
QD
Philosophy
47
JNA
Philosophy and theory of education
38
PBB
Philosophy of mathematics
32
QDTM
Philosophy of mind
81
PDA
Philosophy of science
154
QDTK
Philosophy: epistemology and theory of knowledge
127
QDTL
Philosophy: logic
47
QDTJ
Philosophy: metaphysics and ontology
42
PNR
Physical chemistry
69
PH
Physics
194
PHDF
Physics: Fluid mechanics
53
JMM
Physiological psychology, neuropsychology, biopsychology
26
MFG
Physiology
53
PSTB
Plant biology
31
PHFP
Plasma physics
34
KCP
Political economy
121
WHB
Political humour
20
JPHL
Political leaders and leadership
44
JPA
Political science and theory
32
JPH
Political structure and processes
23
JPHV
Political structures
45
JP
Politics and government
66
RNP
Pollution and threats to the environment
40
PDZM
Popular and recreational mathematics
98
WNX
Popular astronomy and space
807
VFD
Popular medicine and health
24
QDX
Popular philosophy
20
QDXB
Popular philosophy: Meaning of life
29
VSP
Popular psychology
244
PDZ
Popular science
445
JBFC
Poverty and precarity
20
JPWG
Pressure groups, protest movements and non-violent action
34
URD
Privacy and data protection
38
PBT
Probability and statistics
251
TDCX
Process engineering technology and techniques
21
TGP
Production and industrial engineering
44
UMX
Programming and scripting languages: general
110
UMA
Programming techniques
37
JMAF
Psychoanalytical and Freudian psychology
23
JMA
Psychological theory, systems, schools and viewpoints
26
JM
Psychology
71
JMQ
Psychology: emotions
27
JMT
Psychology: states of consciousness
36
JMS
Psychology: the self, ego, identity, personality
24
MKGW
Psychopharmacology
39
JPP
Public administration
38
KFFD
Public finance and taxation
47
MBN
Public health and preventive medicine
76
GPSD
Quantitative research methods
20
PHQ
Quantum physics (quantum mechanics and quantum field theory)
970
JBFA1
Racism and racial discrimination
31
PBKB
Real analysis, real variables
42
MFGG
Regional physiology
25
PHR
Relativity physics
332
QRAM2
Religion and politics
23
QRAM3
Religion and science
27
DNP
Reportage, journalism or collected columns
72
GPS
Research methods
100
RNKH2
Restoration ecology
20
NHTV
Revolutions, uprisings, rebellions
24
TJFM1
Robotics
306
KJS
Sales and marketing
42
KJMV7
Sales and marketing management
44
UFLS
SAP (Systems, applications and products in databases)
24
FLU
Science fiction: aliens
77
FLW
Science fiction: space exploration
200
FLS
Science fiction: space opera
35
PDK
Science funding and policy
70
PD
Science: general issues
63
PDM
Scientific research
59
WNCS1
Sea life and the seashore: general interest
22
NHWR7
Second World War
55
VS
Self-help, personal development and practical advice
32
CFG
Semantics, discourse analysis, stylistics
33
GTD
Semiotics
64
PSAN4
Sensory and motor systems
23
PBCH
Set theory
20
TJKH
Signal processing
35
NHTS
Slavery, enslaved persons and abolition of slavery
28
JHMC
Social and cultural anthropology
22
NHTB
Social and cultural history
77
JBF
Social and ethical issues
34
QDTS
Social and political philosophy
83
JBFX
Social attitudes
21
JBFZ
Social forecasting, future studies
36
RNT
Social impact of environmental issues
46
JMH
Social, group or collective psychology
79
CFB
Sociolinguistics
38
VSS
Soft skills and dealing with other people
21
UMZ
Software Engineering
79
UMZT
Software testing and verification
31
THVS
Solar power
205
PGS
Solar system: the Sun and planets
333
TTDX
Space exploration
545
TTD
Space science
278
CBP
Speaking in public: advice and guides
24
DNS
Speeches
44
PHS
Statistical physics
56
PBWL
Stochastics
43
RNU
Sustainability
58
TVF
Sustainable agriculture
23
JNU
Teaching of a specific subject
30
ATJ
Television
41
ATJS
Television: styles and genres
20
ATD
Theatre studies
26
PGC
Theoretical and mathematical astronomy
75
AMA
Theory of architecture
25
ABA
Theory of art
50
AVA
Theory of music and musicology
24
PHH
Thermodynamics and heat
35
PGZ
Time (chronology), time systems and standards
47
PBP
Topology
39
RPT
Transport planning and policy
22
RPC
Urban and municipal planning and policy
65
UYZG
User interface design and usability
21
MBNK
Vaccination
31
RBC
Volcanology and seismology
36
PHDS
Wave mechanics (vibration and acoustics)
43
UGB
Web graphics and design
24
UMW
Web programming
76
WNCF
Wildlife: mammals: general interest
23
THVW
Wind power
29
CBW
Writing and editing guides
28
PSV
Zoology and animal sciences
22
Les influencers mentent-ils sur Dubai ? La réalité des attaques de drones
Dubai Influencers Facing Drone Attacks | The Hidden Reality
★
★
☆
☆
☆
2/5
Le vrai danger des médecines alternatives et complémentaires
The real danger of alternative and complementary medicines
★
★
★
★
☆
4/5
Le nouveau robot OpenClaw donne l’impression d’avoir une conscience (Skynet déclenché ?)
The new OpenClaw robot gives the impression of having consciousness (Skynet triggered?)
★
★
★
☆
☆
3/5
Lance Dixon - AI for Theory Data - IPAM at UCLA
★
★
★
★
☆
4/5
La Ciencia tiene un GRAN problema - CIENCIA SIMPLIFICADA EP#73
Science Has a BIG Problem - SIMPLIFIED SCIENCE EP#73
★
★
★
★
☆
4/5
L’ADN, acteur et témoin de l’évolution des animaux (1) - Denis Duboule (2025-2026)
DNA, actor and witness of animal evolution (1) - Denis Duboule (2025-2026)
★
★
★
★
★
5/5
L'actualité tech du 09/03/2026 en Live sur Renaud Dékode
The tech news of 03/09/2026 live on Renaud Dékode
★
★
★
☆
☆
3/5
Kevin Dorst modeling rational polarization
★
★
★
★
☆
4/5
FRANCE~1
★
★
★
★
☆
4/5
Doctoriales Epsylon 2026 Méryl Donadey
★
★
★
★
☆
4/5
Diane O'Leary
★
★
★
★
☆
4/5
Croyez-en mon expérience ? Cognition et Esprit Critique Par Mireille Bétrancourt et Luc Rodet
Trust my experience? Cognition and Critical Thinking by Mireille Bétrancourt and Luc Rodet
★
★
★
★
☆
4/5
Cirugía de rodilla: opciones actuales y cómo pueden ayudarte | Pedro Guillén, traumatólogo
Knee surgery: current options and how they can help you | Pedro Guillén, traumatologist
★
★
★
★
☆
4/5
Ciclo de conferencias de astrofísica: "Origen y evolución del universo", por Rafael Bachiller
Astrophysics conference series: "Origin and evolution of the universe", by Rafael Bachiller
★
★
★
★
☆
4/5
Christian Wuthrich Laws Beyond Spacetime
★
★
★
★
☆
4/5