Trending Scientific Theories this year
The 100 most-viewed scientific theories this year on Wikipedia. Ranked by real-world attention. Top: Big Bang.
100
Ranked
430,764
Total Views (this year)
1
Big Bang
hypothetical begin of the Universe through expansion out of an infinitely small and infinitely dense state
32,649
views
views
2
Fermi paradox
apparent contradiction between the lack of evidence and high probability estimates for the existence of extraterrestrial civilizations
29,727
views
views
3
flat Earth
archaic conception of the Earth's shape
25,054
views
views
4
theory of relativity
two interrelated physics theories by Albert Einstein
20,801
views
views
5
race
nonscientific human classification system primarily based on physical appearance
17,242
views
views
6
Dyson sphere
hypothetical megastructure, originally described by Freeman Dyson
15,729
views
views
7
general relativity
standard and classical physics theory of gravity and space
15,600
views
views
8
accelerationism
political philosophy that the prevailing system of capitalism should be expanded in order to generate radical social change
14,263
views
views
9
uncertainty principle
fundamental principle in quantum physics
13,305
views
views
10
special relativity
physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein
11,460
views
views
11
Coriolis force
apparent or fictitious force on objects moving within a reference frame that rotates with respect to an inertial frame
8,652
views
views
12
infrared radiation
electromagnetic radiation with longer wavelengths than those of visible light
8,537
views
views
13
Bose–Einstein condensate
state of matter of a dilute gas of bosons cooled to temperatures very near absolute zero
8,166
views
views
14
meritocracy
political system in which capital is assigned on the basis of competence
7,371
views
views
15
Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era
a political theory attributed to Xi Jinping, the General Secretary of the Chinese Communist Party
7,014
views
views
16
heliocentrism
astronomical model in which the Earth and planets revolve around a relatively stationary Sun at the center of the Solar System
6,883
views
views
17
boson
quantum system invariant by exchange of two identical instances
6,514
views
views
18
germ theory of disease
prevailing theory about the cause of infectious diseases
6,193
views
views
19
Einstein field equations
field equations in general relativity
6,180
views
views
20
miasma theory
obsolete medical theory about the transmission of disease through bad air
5,470
views
views
21
Lamarckism
hypothesis that an organism can pass on characteristics that it has acquired through use or disuse during its lifetime to its offspring
5,441
views
views
22
trickle-down economics
economic theory
5,071
views
views
23
big lie
gross distortion or misrepresentation of the truth
4,849
views
views
24
Third International Theory
theory of governance proposed by Muammar Gaddafi
4,528
views
views
25
continental drift
movement of Earth's continents relative to each other
4,439
views
views
26
Darwinism
theory of biological evolution driven by natural selection
4,397
views
views
27
spherical Earth
assertion that the Earth is (at least approximately) spherical
4,238
views
views
28
Kurgan hypothesis
theory of Indo-European origin
4,186
views
views
29
axial tilt
angle between the rotational axis and orbital axis of a body
4,170
views
views
30
insanity
abnormal mental or behavioral patterns
3,669
views
views
31
Realism
international relations theory
3,349
views
views
32
HIV/AIDS denialism
belief, contradicted by conclusive evidence, that human immunodeficiency virus (HIV) does not cause acquired immune deficiency syndrome (AID
3,159
views
views
33
vitalism
discredited scientific hypothesis
3,144
views
views
34
spontaneous generation
disproven theory of life arising from nonliving matter
3,052
views
views
35
free energy principle
hypothesis in neuroscience proposed by Karl Friston
3,018
views
views
36
Socialism in One Country
political theory by Joseph Stalin
2,741
views
views
37
von Mises yield criterion
concept in continuum mechanics
2,728
views
views
38
Bose-Einstein statistics
statistical description for the behaviour of bosons
2,727
views
views
39
phlogiston theory
superseded scientific theory about combustion
2,685
views
views
40
Rényi entropy
family of diversity measures generalising Shannon entropy
2,657
views
views
41
cell theory
scientific theory that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and t
2,635
views
views
42
Fermi–Dirac statistics
behaviour of many identical fermions, particles with half-integer spin
2,550
views
views
43
principal–agent problem
conflict of interest when one agent makes decisions on another's behalf
2,531
views
views
44
Turing pattern
how patterns in nature, such as stripes and spots, can arise naturally and autonomously from a homogeneous, uniform state
2,473
views
views
45
History of atomic theory
history of scientific theory that views matter as made up of atoms of chemical elements
2,437
views
views
46
elite theory
theory of the state
2,317
views
views
47
kinetic theory
mathematical model explaining macroscopic properties of gases in microscopic terms
2,292
views
views
48
two-nation theory
political ideology that, in the Indian subcontinent, Hindus and Muslims comprise separate nations
2,277
views
views
49
perturbation theory
quantum mechanics
2,245
views
views
50
Penrose process
theorical process wherein energy can be extracted from a rotating black hole
2,224
views
views
51
palingenetic ultranationalism
theory concerning generic fascism
2,050
views
views
52
bricolage
construction or creation of a work from a diverse range of things that happen to be available, or a work created by such a process.
1,965
views
views
53
modern evolutionary synthesis
early-20th-century scientific theory combining Darwinian evolution and Mendelian inheritance
1,961
views
views
54
Madman theory
feature of Richard Nixon's foreign policy
1,941
views
views
55
iron law of oligarchy
Political theory claiming that all organizations will eventually become oligarchic
1,885
views
views
56
menstrual synchrony
purported menstrual cycle synchronization in women who live together
1,872
views
views
57
domino theory
theory concerning the influence of Communism
1,780
views
views
58
Three Worlds Theory
Maoist interpretation and formulation of international relations
1,738
views
views
59
Penrose diagram
two-dimensional diagram that captures the causal relations between different points in spacetime
1,670
views
views
60
foco
theory of revolution by way of guerrilla warfare
1,667
views
views
61
growing block universe
past and present exist while the future does not
1,660
views
views
62
neorealism
concept in international relations
1,627
views
views
63
Aristotle's biology
theory of biology, grounded in systematic observation and collection of data, mainly zoological, embodied in Aristotle's books on the scienc
1,592
views
views
64
Duverger's law
principle in political science
1,572
views
views
65
Dirac sea
ground state of a fermionic field; thought of as a "sea" of negative-energy states that have been all filled in, thus rendering the vaccum s
1,566
views
views
66
probability axioms
axioms that are relevant to the probability theory
1,557
views
views
67
Bell state
quantum state of two qubits that exhibits maximal quantum entanglement
1,491
views
views
68
Stokes parameters
1,411
views
views
69
Kelvin–Helmholtz instability
fluid instability that occurs when there is velocity shear in a single continuous fluid or a velocity difference across the interface betwee
1,376
views
views
70
Brønsted–Lowry acid–base theory
chemical theory defining acids and bases by transfer of protons (hydrons)
1,364
views
views
71
capability approach
economic theory
1,295
views
views
72
withering away of the state
concept coined by Engels that, with the realization of socialism, the state will become obsolete and disappear as the society will govern it
1,290
views
views
73
Gallicanism
the belief that popular civil authority—often represented by the monarchs' authority or the state's authority—over the Catholic Church is co
1,273
views
views
74
Bell test experiments
experiments in quantum mechanics
1,255
views
views
75
Fresnel zone
region of space involved in radio propagation between a transmitting and receiving antenna
1,253
views
views
76
killer ape theory
theory that war and interpersonal aggression was the driving force behind human evolution
1,244
views
views
77
Jahn–Teller effect
mechanism of spontaneous symmetry breaking in molecular and solid-state systems
1,241
views
views
78
von Neumann entropy
type of entropy in quantum statistical mechanics
1,181
views
views
79
rotating black hole
black hole with angular momentum
1,173
views
views
80
voting paradox (Condorcet)
Marquis de Condorcet's observation regarding times when voters' collective preferences are cyclic, even when voters' individual preferences
1,121
views
views
81
post-Marxism
trend in political philosophy and social theory
1,114
views
views
82
pluralism
view that politics and decision making are located mostly in the framework of government, but that many non-governmental groups use their re
1,111
views
views
83
democratic peace theory
theory which posits that democracies are hesitant to engage in armed conflict with other identified democracies
1,111
views
views
84
Pauli effect
supposed tendency of technical equipment to fail in the presence of certain people
1,110
views
views
85
flood geology
attempt to interpret and reconcile geological features of the Earth in accordance with a literal belief in the global flood described in Gen
1,084
views
views
86
devolution
process of evolving from a complex organism to a simpler organism
1,069
views
views
87
Fresnel diffraction
diffraction
1,068
views
views
88
Aristotelian physics
natural sciences as described by Aristotle
1,038
views
views
89
refrigerator mother theory
discredited historical theory that autistic spectrum disorders are caused by a lack of parental emotional warmth
1,003
views
views
90
isospin
quantum number related to the weak interaction
976
views
views
91
Unified neutral theory of biodiversity
theory of evolutionary biology
964
views
views
92
heat death paradox
paradox relating to fate of universe
959
views
views
93
particle horizon
the maximum distance from which light from particles could have traveled to the observer during the age of the universe
935
views
views
94
Neo-Darwinism
the current paradigm in evolutionary biology
935
views
views
95
Maxwell–Boltzmann statistics
statistical distribution used in many-particle mechanics
909
views
views
96
orthogenesis
obsolete biological hypothesis that organisms have an innate tendency to evolve towards some goal
891
views
views
97
Flory–Huggins solution theory
Lattice model of polymer solutions
865
views
views
98
preformationism
formerly-popular theory that organisms develop from miniature versions of themselves
861
views
views
99
Stokes flow
fluid flow where advective inertial forces are small compared with viscous forces
844
views
views
100
caloric theory
obsolete scientific theory of heat flow
807
views
views