User:Guy vandegrift/Images

figures by username

1. https://commons.wikimedia.org/w/index.php?title=Special%3AListFiles&user=Guy_vandegrift&ilshowall=1
2. https://commons.wikimedia.org/wiki/Category:Physics
3. https://commons.wikimedia.org/wiki/Category:Electromagnetism
4. https://commons.wikimedia.org/wiki/Category:Optics
5. https://commons.wikimedia.org/wiki/Category:Created_with_VectorFieldPlot EXCELLENT RESOURCE
6. https://commons.wikimedia.org/w/index.php?title=Category:Created_with_mplwp&fileuntil=Mplwp+xsqrexpnegx.svg%0AMplwp+xsqrexpnegx.svg#mw-category-media PLOTS OF MANY FUNCTIONS

Figures added in 2015

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  Image:Young.gif

Figures by brews

• Some of my figures contributed so far
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  Circuit 1 with current I₁ exerts force F₁₂ on Circuit 2 via its B
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  vector field F ( r, t ) defined throughout space, and a surface Σ bounded
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  Feynman's example where Faraday's law does not work.
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  Faraday's disc electric generator.
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  Mapping of the Faraday disc into a sliding conducting rectangle
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  Rectangular wire loop in magnetic field B moving along x-axis at velocity v.
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  ball moving vertically along the axis of rotation in an inertial frame appears to spiral downward
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  Figure 6: A parachutist moving vertically parallel to the axis of rotation in a rotating frame appea
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  Car with passenger making a turn. The road exerts a centripetal force on the car to force a curved path.
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  Figure 3: Exploded view showing force components.
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  Coordinate system at latitude φ with x-axis east, y-axis
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  Integration over the triangular area can be done using vertical or horizontal strip
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  Figure 1: An object located at x<su
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  Figure 4: Left panel: Ball on a banked circular track moving with constant speed v;
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  Earth-Moon system.
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  Simplified sketch of centrifugal clutch. The spring provides centri
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  Geometric construction for Kepler's calculation of θ. .
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  Heliocentric coordinate system (r, θ) for ellipse. A
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  Force diagram for an element of water surface in co-rotating frame.
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  Top panel: accelerating car of mass M with passenger of mass m. The
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  A capacitor with charges represented by blue and red circles. Le
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  Ball toss on rotating carousel. '
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  A model of a neutron star's internal structure.
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  Galaxy rotation curve for the Milky Way. B
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  An electrically charging capacitor with an imaginary cylindrical
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  Schematic of the Foucault apparatus. Left panel: Light is reflected by a rotat
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  A schematic representation of a Michelson interferometer,
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  A variety of possible recession velocity vs. redshift functions including the simpl
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  Phase diagram for a typical substance at a fixed volume. Vertical axis is Pr
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  Phases of nuclear matter; Compare with Siemens & Jensen.
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  Pie chart showing the fractions of energy in the universe contributed by different sources.
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  Sinusoidal standing waves in a box that constrains the end points to be nodes will have an integer n
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  Wavelength is decreased in a medium with higher refractive index.
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  A wave on a line of atoms can be interpreted according to a variety of wavelengths.
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  Various local wavelengths on a crest-to-crest basis in an ocean wave approaching shore.
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  Local and periodic wavelengths
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  Pattern of light intensity on a screen for light passing through tw
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  Wavelength of an irregular periodic waveform at a particular moment in time. T
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  A typical reaction path requires the initial reactants to cross an energy barrier, enter a

more figures

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  Solar cell voltage as a function of solar cell current delivered to
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  The oscillation about the sawtooth is called the [[Gibbs p
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  Two different sources of redshift:
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  Bradley's data on the north-south component of the aberrati
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  light propagates down moving
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  Acceleration is the rate of change of velocity.
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  Components of acceleration for a planar curved motion. T
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  Various identically oriented and equal area plane segments correspon
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  Earth cross-section showing location of upper and lower mantle
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  An oceanic plate lithosphere asthenosphere [[spread
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  A superplume generated by cooling processes in the mantle.

more figures

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  Two paths of a P-wave, one direct and one refracted as it crosses the Moho.
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  Fold terminology. For more general fold shapes, a hinge curve replaces the hin
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  Cylindrical fold with axial surface not a plane.
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  Flow folding: this picture uses artistic license to
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  Ramsay classification of folds by convergence of dip isogons (red lines).
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  Two processes that can contribute to an orogen. Top:[[Delamination (geolo
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  Stratovolcanoes associated with a subduction (left) and a [[spreading
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  Fault-block mountain of tilted type.
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  Strike line and dip of a plane describing attitude relative t
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  Calculated Earth's temperature vs. depth. Dashed curve: Layere
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  Velocity of seismic waves in the Earth versus depth. The seismic veloci
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  Velocity of seismic S-waves in the Earth near the surface in three tectonic

more figures

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  Generalization of Pythagoras' theorem for scalene triangles, green area = blue area.
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  Diagram for Garfield's proof of Pythagoras' theorem.
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  The volume of a parallelepiped using dot and cross-products; dashed lines show the projections of c onto a × b and of a onto b × c, a first step in finding dot-products.
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  Proof of Pythagoras' theorem using differential equations.
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  Proof using similar triangles.
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  Staring's differential proof of Pythagoras' theorem.
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  A regular pentagon inscribed in a circle of radius a.
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  Pythagoras' theorem in three dimensions relates the diagonal AD to the three sides.
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  Method using Carlyle circles.
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  Distance between infinitesimally separated points in Cartesian and polar coordinates.
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  Orientation of a square of side c described by inserted right triangles of sides a and b.
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  Triangle abc is the orthic triangle of triangle ABC.
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  The eccentric anomaly of point P is the angle E. The center of the ellipse is point C, and the focus is point F. The radial position vector r is taken from the focus F, not from the center of coordinates C.
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  Generalization of Pythagoras' theorem by Tâbit ibn Qorra.
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  Excel graph of the difference between direct evaluation of the roots of a quadratic and an approximation for widely spaced roots. The difference reaches a minimum where round-off takes over, causing squiggles in the curves.
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  Euclid's construction for proof of the triangle inequality.
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  Two frames of reference moving with relative velocity ${\stackrel {\vec {v}}{}}$. Frame S' has an arbitrary but fixed rotation with respect to frame S.
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  The Fano plane expressing the products of the unit octonions.
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  Fano planes expressing the 7-D cross-product
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  An interferometric determination of length. Top: constructive interference; bottom: destructive interference.
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  A rotating shaft unbalanced by two attached weights causing a counterclockwise centrifugal couple Cd that must be resisted by a clockwise couple Fℓ exerted by the bearings .
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  Each similar triangle has an area proportional to the square of its own hypotenuse
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  Measuring a length in wavelengths of light using an interferometer.
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  Forces on a ball in circular motion as seen in the inertial frame where the ball is seen to rotate (center) and as seen in a co-rotating frame where the ball appears stationary (right).
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  Free body diagram showing the forces on a ball and a string keeping it in circular motion. Left: inertial frame where the ball is seen to rotate. Right: co-rotating frame where the ball appears stationary.
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  A ball in circular motion held by a string tied to a fixed post.
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  A Feynman diagram (box diagram) for photon-photon scattering, one photon scatters from the transient vacuum charge fluctuations of the other.
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  An approximate realization of a black body as a tiny hole in an insulated enclosure. The figure is a cross-section containing the hole.
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  Black-body radiation is distributed in wavelength in a manner set by the temperature T.

more figures

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  Black-body radiation is distributed in energy (or frequency) in a manner set by the temperature T.
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  An idealized view of the cross-section of a star.
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  Effective temperature of a black body color-color diagram.
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  MOSFET showing ga
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  Channel formation in nMOS MOSFET
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  V_sb splits Fermi levels F_n for electrons and
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  Mesa diode structure (top) and planar diode structure with guard-ring (bottom).
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  Band-bending diagram for p–n diode at zero applied voltage. The depletion region is shaded.
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  Band-bending diagram for p–n diode in forward bias. Diffusion drives
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  Quasi-Fermi levels and carrier densities in forward biased p–n-
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  Band-bending for p–n diode in reverse bias
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  Quasi-Fermi levels in reverse-biased p–n diode.
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  Small-signal circuit for p–n diode driven by a current signal
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  A FinFET MOSFET
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  A modulated waveform in space at a selected time instant composed of two si
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  Diffraction pattern of a double slit has a single-slit envelope.
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  Dispersion relation ω=ω(k) for the valence and conduction bands of GaAs
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  Dispersion relation ω=ω(k) for some waves corresponding to lattice vibrations in GaAs.
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  Electron probabilities in lowest two quantum states of
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  Dispersion curves in linear diatomic chain
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  Optical and acoustic vibrations in linear diatomic chain.
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  Signal transmission using electronic signals
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  Some possible universeschine interface for using and modifying a data base

large gallery

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  animated
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  Translational motion ANIMATED
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  Lunar phase diagram
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  diagram used to find tension in rope
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  Fulcrum in static equilibrium. Vertical forces and distance to axis shown.
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  Three forces on fulcrum
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  r points from the field point (blue vector) to the source ponit
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  sin A = a/c; cos A = b/c;
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  Gauss law pillbox
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  Free Body Diagram
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  Three pulleys
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  Magnetic flux through semisphere
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  Semi atwood machine
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  Kleste
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  Trave inclinata
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  SpireCourant
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  WV-ExoInduction01
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  WV-ExoInduction02-1
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  WV-ExoInduction02-2
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  WV-ExoInduction02-3
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  IntegraleDouble-SecteurCirculaire
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  Duhem Statique ch 2 fig 1
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  Work of gravity F dot d equals mgh
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  Atwood machine
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Links

• User:SamHBstarted a number of good pages on physics