Science

• http://paperscape.org/

General

• https://en.wikipedia.org/wiki/Physics

• https://en.wikipedia.org/wiki/Mathematical_physics

• http://www.sixtysymbols.com/

• http://www.feynmanlectures.caltech.edu/I_toc.html

• http://en.wikipedia.org/wiki/Classical_mechanics
• http://en.wikipedia.org/wiki/Galilean_invariance

• http://en.wikipedia.org/wiki/Spacetime
• https://en.wikipedia.org/wiki/Space#Physics

• http://en.wikipedia.org/wiki/Special_relativity
  • Albert Einstein's Theory of Relativity - In Words of Four Letters or Less
• http://en.wikipedia.org/wiki/General_relativity

• https://en.wikipedia.org/wiki/Standard_Model

• https://en.wikipedia.org/wiki/Space_(mathematics)

• https://en.wikipedia.org/wiki/Minkowski_space
  • https://en.wikipedia.org/wiki/Poincar%C3%A9_group
  • https://en.wikipedia.org/wiki/Lorentz_transformation

• https://en.wikipedia.org/wiki/Speed_of_light
• https://en.wikipedia.org/wiki/Speed_of_gravity
• https://math.ucr.edu/home/baez/physics/Relativity/GR/grav_speed.html

photons don't know time; time moves at the speed of light.

• http://www.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/index.html

• https://en.wikipedia.org/wiki/Fundamental_interaction

• https://en.wikipedia.org/wiki/Electromagnetic_force

• https://en.wikipedia.org/wiki/Strong_interaction

• https://en.wikipedia.org/wiki/Weak_interaction

• https://en.wikipedia.org/wiki/Electroweak_interaction

• https://en.wikipedia.org/wiki/Gravitation
  • http://en.wikipedia.org/wiki/Gravitational_constant
  • https://en.wikipedia.org/wiki/Gravitational_interaction_of_antimatter

• https://en.wikipedia.org/wiki/Natural_units
• https://en.wikipedia.org/wiki/Planck_units

Field theory

• https://en.wikipedia.org/wiki/Field_(physics)

• https://en.wikipedia.org/wiki/Scalar_field
• https://en.wikipedia.org/wiki/Vector_field
• https://en.wikipedia.org/wiki/Spinor_field

• https://en.wikipedia.org/wiki/Scalar_field_theory

• https://en.wikipedia.org/wiki/Effective_field_theory

Energy

• https://en.wikipedia.org/wiki/Energy
  • https://en.wikipedia.org/wiki/Energy_state

• https://en.wikipedia.org/wiki/Electric_charge
• http://en.wikipedia.org/wiki/Charge_carrier

• https://en.wikipedia.org/wiki/Kirchhoff's_circuit_laws

• https://en.wikipedia.org/wiki/Elementary_charge - e

Particles

• https://en.wikipedia.org/wiki/Elementary_particle
  • https://en.wikipedia.org/wiki/List_of_particles
  • https://en.wikipedia.org/wiki/File:Particle_overview.svg

• https://en.wikipedia.org/wiki/Force_carrier

Quantum

• https://en.wikipedia.org/wiki/Quantum_mechanics
• https://en.wikipedia.org/wiki/Quantum

• http://en.wikipedia.org/wiki/Planck_constant - quantum of action in quantum mechanics. first described as the proportionality constant between the energy (E) of a photon and the frequency (ν) of its associated electromagnetic wave
• https://en.wikipedia.org/wiki/Quantum_number
• https://en.wikipedia.org/wiki/Quantization_(physics)
• https://en.wikipedia.org/wiki/Charge_(physics)

• https://en.wikipedia.org/wiki/Quantum_state
• https://en.wikipedia.org/wiki/Operator_(physics)

• http://en.wikipedia.org/wiki/Quantum_field_theory
• http://en.wikipedia.org/wiki/Quantum_electrodynamics
• http://en.wikipedia.org/wiki/Quantum_chromodynamics
• http://en.wikipedia.org/wiki/Renormalization
• http://arstechnica.com/science/2012/09/weak-measurements-show-quantum-uncertainty-is-inherent/

• https://en.wikipedia.org/wiki/Perturbation_theory_(quantum_mechanics)
• https://en.wikipedia.org/wiki/Virtual_particles

Statistics

• https://en.wikipedia.org/wiki/Particle_statistics

• https://en.wikipedia.org/wiki/Bose%E2%80%93Einstein_statistics

• https://en.wikipedia.org/wiki/Spin-statistics_theorem
• http://en.wikipedia.org/wiki/Spin_(physics)

• https://en.wikipedia.org/wiki/Generation_(particle_physics)
• https://en.wikipedia.org/wiki/Flavour_(particle_physics)

Mass

• https://en.wikipedia.org/wiki/Mass
• https://en.wikipedia.org/wiki/Invariant_mass

• https://en.wikipedia.org/wiki/Planck_mass
  • https://en.wikipedia.org/wiki/Compton_wavelength
  • https://en.wikipedia.org/wiki/Schwarzschild_radius

Boson

• https://en.wikipedia.org/wiki/Boson

• https://en.wikipedia.org/wiki/Force_carrier

• https://en.wikipedia.org/wiki/Vector_boson - a boson with the spin quantum number equal to 1

• https://en.wikipedia.org/wiki/Gauge_boson
  • https://en.wikipedia.org/wiki/Gauge_theory

• https://en.wikipedia.org/wiki/Photons - carry the electromagnetic interaction

• https://en.wikipedia.org/wiki/W_and_Z_bosons - carry the weak interaction

• https://en.wikipedia.org/wiki/Gluon - strong interaction

• https://en.wikipedia.org/wiki/Higgs_field
  • https://en.wikipedia.org/wiki/Higgs_boson

• https://en.wikipedia.org/wiki/Antiparticle
• https://en.wikipedia.org/wiki/Antimatter
• https://en.wikipedia.org/wiki/Electron%E2%80%93positron_annihilation
• https://en.wikipedia.org/wiki/Antihydrogen

Atomic

• https://en.wikipedia.org/wiki/Atomic_physics - deals with the atom as a system consisting of a nucleus and electrons
  • https://en.wikipedia.org/wiki/Atomic,_molecular,_and_optical_physics

• https://en.wikipedia.org/wiki/Atom - a basic unit of matter that consists of a dense central nucleus surrounded by a cloud of negatively charged electrons.
• https://en.wikipedia.org/wiki/Atomic_nucleus - contains a mix of positively charged protons and electrically neutral neutrons (except in the case of hydrogen-1, which is the only stable nuclide with no neutrons)
• https://en.wikipedia.org/wiki/Nucleon

• https://en.wikipedia.org/wiki/Atomic_units
  • https://en.wikipedia.org/wiki/Atomic_mass
  • https://en.wikipedia.org/wiki/Atomic_mass_unit

• https://en.wikipedia.org/wiki/Atomic_number - the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus
• https://en.wikipedia.org/wiki/Chemical_element

• https://en.wikipedia.org/wiki/Periodic_table
• http://www.periodictable.com/
• http://www.periodicvideos.com/
• http://table.minutephysics.com/

• https://en.wikipedia.org/wiki/Mass_number

• https://en.wikipedia.org/wiki/Isotope

• https://en.wikipedia.org/wiki/Nuclear_physics - considers atomic nuclei alone

• https://en.wikipedia.org/wiki/Scattering

• https://en.wikipedia.org/wiki/Radiation
• https://en.wikipedia.org/wiki/Radioactive
• https://en.wikipedia.org/wiki/Radioactive_decay
• https://en.wikipedia.org/wiki/Half-life

• https://en.wikipedia.org/wiki/Nuclear_reaction
  • https://en.wikipedia.org/wiki/Nuclear_fusion_reaction
  • https://en.wikipedia.org/wiki/Nuclear_fission

• https://en.wikipedia.org/wiki/Alpha_particle

• https://en.wikipedia.org/wiki/Beta_particle
  • https://en.wikipedia.org/wiki/Beta_decay

• https://en.wikipedia.org/wiki/Gamma_ray

• https://en.wikipedia.org/wiki/Cluster_decay

• https://en.wikipedia.org/wiki/Ion - an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving the atom a net positive or negative electrical charge
  • https://en.wikipedia.org/wiki/Ionizing_radiation

Matter

• https://en.wikipedia.org/wiki/Matter

• https://en.wikipedia.org/wiki/State_of_matter
  • https://en.wikipedia.org/wiki/List_of_states_of_matter

• https://en.wikipedia.org/wiki/Phase_(matter)

• https://en.wikipedia.org/wiki/Solid
  • http://en.wikipedia.org/wiki/Crystal
    • http://en.wikipedia.org/wiki/Quasicrystal
      • https://www.youtube.com/watch?v=a0wo_yAh0Ps
• https://en.wikipedia.org/wiki/Liquid
• https://en.wikipedia.org/wiki/Gas
• https://en.wikipedia.org/wiki/Plasma_(physics)
• https://en.wikipedia.org/wiki/Bose%E2%80%93Einstein_condensate

• https://en.wikipedia.org/wiki/Solid-state_physics
• http://en.wikipedia.org/wiki/Band_gap

• http://en.wikipedia.org/wiki/Semiconductor
• http://en.wikipedia.org/wiki/Transistor

• https://en.wikipedia.org/wiki/Degenerate_matter

• https://en.wikipedia.org/wiki/QCD_matter
• https://news.ycombinator.com/item?id=4952180

• https://en.wikipedia.org/wiki/Condensed_matter_physics

Fermion

• https://en.wikipedia.org/wiki/Fermion

• https://en.wikipedia.org/wiki/Lepton
  • https://en.wikipedia.org/wiki/Electron
  • https://en.wikipedia.org/wiki/Muon
  • https://en.wikipedia.org/wiki/Tau_(particle)

• http://en.wikipedia.org/wiki/Electron_configuration
• http://en.wikipedia.org/wiki/Electron_shell
• http://en.wikipedia.org/wiki/Valence_electron

• https://en.wikipedia.org/wiki/Neutrino
  • https://en.wikipedia.org/wiki/Electron_neutrino
  • https://en.wikipedia.org/wiki/Muon_neutrino
  • https://en.wikipedia.org/wiki/Tau_neutrino

• • https://www.simonsfoundation.org/quanta/20131010-neutrino-experiment-intensifies-effort-to-explain-matter-antimatter-asymmetry/

• https://en.wikipedia.org/wiki/Baryon
  • http://en.wikipedia.org/wiki/Neutron
  • http://en.wikipedia.org/wiki/Proton

• https://en.wikipedia.org/wiki/Quark
  • https://en.wikipedia.org/wiki/Baryon - Composite fermions
  • https://en.wikipedia.org/wiki/Hadron
  • http://en.wikipedia.org/wiki/Meson
    • https://en.wikipedia.org/wiki/List_of_mesons

Beyond the Standard Model

• https://en.wikipedia.org/wiki/Beyond_the_standard_model

• https://en.wikipedia.org/wiki/Grand_unification_theory
  • https://en.wikipedia.org/wiki/Georgi-Glashow_model

• https://en.wikipedia.org/wiki/Theory_of_everything

• https://en.wikipedia.org/wiki/Supersymmetry

• https://en.wikipedia.org/wiki/String_theory
• https://en.wikipedia.org/wiki/Membrane_(M-theory)
• https://www.superstringtheory.com/
• https://xkcd.com/171/

• https://en.wikipedia.org/wiki/Bosonic_string_theory
• https://en.wikipedia.org/wiki/Superstring_theory
• https://whystringtheory.com/

• https://www.simonsfoundation.org/quanta/20130917-a-jewel-at-the-heart-of-quantum-physics/ [1]
• http://www.scottaaronson.com/blog/?p=1537 [2]

• https://www.youtube.com/watch?v=OQF7kkWjVWMf

Software

• http://www.cabrillo.edu/~dbrown/tracker/

Engineering

• http://507movements.com/

• http://en.wikipedia.org/wiki/Linkage_(mechanical)

• https://news.ycombinator.com/item?id=6332385

• http://jacquesmaurel.com/gears

Chemistry

to move

• http://en.wikipedia.org/wiki/Chemistry

• http://en.wikipedia.org/wiki/Chemical_bond