User:Xophist/s0

Math

 * Hyperbolic and exponential; cosh.svg cosh(x) is the average of e^x and e^−x
 * Group homomorphism ver.2.svg Group homomorphism
 * Tetractys.svg Tetractys
 * Hyperbolic functions-2.svg Hyperbolic function
 * Hyperbola properties.svg Hyperbola
 * Quaternion2.png Quaternion
 * Components stress tensor.svg Tensor
 * Cornu Spiral.svg Euler spiral
 * Aeonium_tabuliforme.jpg Aeonium tabuliforme rosette, Golden ratio Phyllotaxis
 * Fibonacci_spiral_34.svg Fibonacci spiral approximates the Golden spiral (See Liber Abaci).
 * FakeRealLogSpiral.svg Golden spiral
 * Desargues_theorem_alt.svg Desargues' theorem
 * Radian-common.svg Radian
 * 5-simplex_t2_A4.svg birectified 5-simplex, a convex Uniform 5-polytope.
 * Schlegel_wireframe_8-cell.png Tesseract, one of the 6 Convex regular polychorons (4-Polytope)
 * 4-cube_t0.svg graph of Tesseract, one of the 6 convex regular 4-polytopes (Polychoron).
 * 120-cell_graph_H4.svg graph of the 120-cell hecatonicosachoron, one of the 6 convex regular 4-polytopes (Polychorons).


 * Integrality_of_root_systems.svg Root system is a configuration of vectors in a Euclidean space satisfying certain geometrical properties. The concept is fundamental in the theory of Lie groups and Lie algebras. (See Differentiable manifold, Adjoint endomorphism, Abstract algebra, and Galois theory).


 * E8Petrie.svg Lie algebra
 * Various_Spirograph_Designs.jpg Spirograph for drawing Hypotrochoids and Epitrochoids.
 * Harmonograph_2.jpg Harmonograph employs pendulums to create a geometric images such as Lissajous curves which describe Complex harmonic motion. (See Fourier series).


 * Lorenz attractor yb.svg Lorenz system (Lorenz attractor)
 * Mandel_zoom_00_mandelbrot_set.jpg Mandelbrot set
 * Mandel_zoom_01_head_and_shoulder.jpg Mandelbrot set detail
 * Mandel_zoom_04_seehorse_tail.jpg "Seahorse tail", central endpoint is a Misiurewicz point.
 * Mandel_zoom_05_tail_part.jpg Mandelbrot set detail
 * Mandel_zoom_08_satellite_antenna.jpg
 * Mandel_zoom_12_satellite_spirally_wheel_with_julia_islands.jpg
 * Mandel_zoom_14_satellite_julia_island.jpg
 * [[Image:Tetrahedron.svg|150px]] Tetrahedron
 * [[Image:Hexahedron.svg|150px]] Hexahedron
 * [[Image:Octahedron.svg|150px]] Octahedron
 * [[Image:POV-Ray-Dodecahedron.svg|150px]] Dodecahedron
 * [[Image:Icosahedron.svg|150px]] Icosahedron

Materials

 * Periodic_table.svg Periodic table of the Chemical elements
 * Methane-2D-stereo.svg Methane, the simplest possible Organic compound.
 * The fluorine economy.svg Estimated mass flows of fluorine
 * Chloralkali membrane.svg Chloralkali process
 * Vanadium crystal bar and 1cm3 cube.jpg Vanadium
 * Zirconium crystal bar and 1cm3 cube.jpg Zirconium
 * HEUraniumC.jpg A billet of highly enriched uranium, author unknown (US Government)
 * Bismuth crystals and 1cm3 cube.jpg Bismuth
 * Hf-crystal bar.jpg Hafnium
 * Lead electrolytic and 1cm3 cube.jpg Lead
 * Thulium sublimed dendritic and 1cm3 cube.jpg Thulium
 * Lutetium sublimed dendritic and 1cm3 cube.jpg Lutetium
 * Manganese electrolytic and 1cm3 cube.jpg Manganese
 * Cadmium-crystal bar.jpg Cadmium
 * Chlorine liquid in an ampoule.jpg Chlorine
 * Rhodium powder pressed melted.jpg Rhodium
 * Zinc_fragment_sublimed_and_1cm3_cube.jpg Zinc
 * Nickel electrolytic and 1cm3 cube.jpg Nickel
 * Kobalt electrolytic and 1cm3 cube.jpg Cobalt
 * Rhenium_single_crystal_bar_and_1cm3_cube.jpg Rhenium
 * Ruthenium_a_half_bar.jpg Ruthenium
 * Scandium sublimed dendritic and 1cm3 cube.jpg Scandium
 * Hydrogenglow.jpg Hydrogen
 * Krypton-glow.jpg Krypton
 * Neon-glow.jpg Neon
 * Nitrogen-glow.jpg Nitrogen
 * Xenon-glow.jpg Xenon
 * Argon-glow.jpg Argon
 * Helium-glow.jpg Helium
 * Yttrium sublimed dendritic and 1cm3 cube.jpg Yttrium
 * Wolfram_evaporated_crystals_and_1cm3_cube.jpg Tungsten
 * Tantalum_single_crystal_and_1cm3_cube.jpg Tantalum
 * PaperAutofluorescence.jpg Paper autofluorescence
 * Niobium_crystals_and_1cm3_cube.jpg Niobium
 * Molybdenum_crystaline_fragment_and_1cm3_cube.jpg Molybdenum
 * Iron_electrolytic_and_1cm3_cube.jpg Iron
 * Chromium crystals and 1cm3 cube.jpg Chromium
 * Vanadium etched.jpg Etched vanadium disc
 * Osmium crystals.jpg Osmium
 * Gold-crystals.jpg Synthetic gold crystals at Gold
 * Silver crystal.jpg Synthetic silver crystal
 * Bromine vial in acrylic cube.jpg Bromine liquid and gas (in an acryllic cube)
 * Titan-crystal bar.JPG Titanium
 * Bi-crystal.jpg Bismuth
 * Cu-Scheibe.JPG Continuous casted copper slice
 * [[Image:BiodegradablePlasticUtensils2.jpg|200px]] Biodegradable plastic utensils at Photoelasticity
 * [[Image:Ferrofluid Magnet under glass edit.jpg|200px]] Ferrofluid Large Spikes at Ferrofluid
 * [[Image:Eight Allotropes of Carbon.png|200px]] Eight Allotropes of Carbon
 * Aerogelbrick.jpg Aerogel

Physics

 * Lagrange points2.svg Lagrangian point
 * Lagrange points Earth vs Moon.jpg L5 Society
 * Cyclotron motion.jpg Cyclotron, Lorentz force
 * Spacetime curvature.png Gravitation, Spacetime
 * Field-illustrations-sub-magnitude.png Field (physics)
 * VFPt dipole magnetic3.svg Magnetic dipole, Magnetic field
 * Cassini-science-br.jpg Introduction to mathematics of general relativity
 * Gravitational red-shifting2.png Gravitational redshift, Introduction to general relativity
 * GravityPotential.jpg Force field (physics), Gravity well
 * LorentzianWormhole.jpg Wormhole
 * Legendrepolynomials6.svg Legendre polynomials,Gaussian quadrature
 * Magnetosphere rendition.jpg Maxwell's equations
 * Structure of the magnetosphere mod.svg Magnetosphere
 * Black Hole Merger.jpg Black hole thermodynamics
 * Kepler laws diagram.svg Kepler's laws of planetary motion
 * Ellipse latus rectum.PNG Kepler's laws of planetary motion
 * Coherent 899 dye laser.jpg Dye laser, Tunable laser
 * Rhodamine6G Chloride.JPG Rhodamine 6G
 * Difraction grating reflecting green light.JPG Diffraction grating
 * 800 nasa structure renderin2.jpg Gamma-ray astronomy, Fermi Gamma-ray Space Telescope
 * Hypervelocity Impact Demonstration.jpg Hypervelocity
 * Incandescence.jpg Activation energy, Incandescence
 * Lightning over Oradea Romania 3.jpg Atmospheric electricity Plasma
 * Energy Arc (central electrode of a Plasma Lamp).jpg Plasma (physics)
 * Plasmabaw.jpg Plasma globe
 * Quark–gluon plasma
 * Plasma-lamp 2.jpg Plasma globe demonstrates Anisotropy
 * VFPt dipole magnetic1.svg Maxwell's equations
 * Magnetic rope.png Birkeland current
 * Carnot heat engine 2.svg Entropy

Astro

 * Under the Milky Way in Black Rock Desert, Nevada.jpg Milky Way
 * The Earth seen from Apollo 17.jpg Apollo 17, Earth, 20th century
 * Large_Houston_Landsat.jpg
 * Sun - August 1, 2010.jpg Solar flare, Solar transition region, Sun
 * Sun Spots and Solar Flares.jpg Solar flare
 * [[File:The Sun by the Atmospheric Imaging Assembly of NASA's Solar Dynamics Observatory - 20100819.jpg|200px]] Sun
 * 171879main LimbFlareJan12 lg.jpg Corona
 * Traceimage.jpg Coronal loop
 * Keplers supernova.jpg Kepler's Supernova
 * SN1994D.jpg Type Ia supernova SN 1994D, near Lenticular galaxy NGC 4526
 * Milky Way IR Spitzer.jpg Galactic Center, Milky Way
 * Andromeda Galaxy (with h-alpha).jpg Andromeda Galaxy, nearest Spiral galaxy (Canis Major Dwarf Galaxy is nearest to our Solar System)


 * BH LMC.png Black hole, Stellar black hole
 * Summer triangle map.png Summer Triangle, Asterism (astronomy)
 * Cygnus constellation map.png Deneb, the Alpha star in the constellation Cygnus. Deneb in fiction
 * Cygnus x1 xray.jpg Cygnus X-1, Astrophysical X-ray source, Cygnus X-1 was the first X-ray source widely accepted to be a black hole candidate.


 * NGC 4485 and NGC 4490.jpg Ultraluminous X-ray source


 * UGC 9128.jpg Dwarf galaxy
 * Messier51 sRGB.jpg Whirlpool Galaxy, a Spiral galaxy of the M51 Group in Constellation Canes Venatici, NGC 5195


 * Venus_pentagram.png Inferior conjunction of Venus and Earth. Successive inferior conjunctions of Venus repeat very near a 13:8 orbital resonance.

See also Astronomical transit, Occultation, and Axial precession (an Euler rotation).
 * Positional_astronomy.svg Opposition, Conjunction, and Syzygy in Spherical astronomy.

See Celestial coordinate system, Right ascension and Declination (like Azimuth and Altitude in the Horizontal coordinate system).
 * Earths_orbit_and_ecliptic.PNG Celestial sphere


 * AxialTiltObliquity.png Obliquity of Earth
 * Earth_precession.svg Precession of the Earth.
 * Obliquity_of_the_ecliptic_laskar.PNG Obliquity of the ecliptic
 * SovietTheodolite.jpg Theodolite (See Tacheometry)
 * Alidade_for_ceiling_projector.JPG Alidade
 * Planispheric_astrolabe.png Astrolabe
 * Planisphere.jpg Planisphere
 * Multiverse - level II.svg Multiverse
 * Internal view of the Stanford torus.jpg Space habitat, Stanford torus
 * Diurnal ionospheric current.jpg Atmospheric electricity, Ionosphere
 * Earth precession.jpg 100,000-year problem, Insolation