• Thumbnail for Point Perpendicular Light
    Point Perpendicular Light is a lighthouse located on Point Perpendicular, a point at the southern tip of the Beecroft Peninsula, in New South Wales, Australia...
    11 KB (1,176 words) - 00:47, 31 May 2024
  • Thumbnail for Point Perpendicular
    Jervis Bay, in New South Wales, Australia. It is the location of Point Perpendicular Light, a historic lighthouse which was active from 1889 to 1993, and...
    950 bytes (104 words) - 12:16, 14 March 2024
  • Thumbnail for Normal (geometry)
    that is perpendicular to a given object. For example, the normal line to a plane curve at a given point is the infinite straight line perpendicular to the...
    17 KB (2,664 words) - 16:29, 1 April 2025
  • Thumbnail for Cape Byron Light
    successor Charles Assinder Harding, who also designed Norah Head Light and Point Perpendicular Light, in a style similar to Barnet's. Harding was a specialist...
    48 KB (6,438 words) - 12:24, 21 September 2024
  • Thumbnail for Ray (optics)
    Ray (optics) (redirect from Light ray)
    model of light or other electromagnetic radiation, obtained by choosing a curve that is perpendicular to the wavefronts of the actual light, and that...
    14 KB (1,990 words) - 22:31, 2 March 2025
  • Thumbnail for Parabola
    denotes Euclidean distance. The point where this distance is minimal is the midpoint V {\displaystyle V} of the perpendicular from the focus F {\displaystyle...
    80 KB (13,447 words) - 15:03, 22 May 2025
  • Thumbnail for Transverse wave
    the membrane plane, but each point in the membrane itself gets displaced up and down, perpendicular to that plane. Light is another example of a transverse...
    19 KB (1,827 words) - 03:59, 23 April 2025
  • Thumbnail for Reflection (physics)
    a light ray PO strikes a vertical mirror at point O, and the reflected ray is OQ. By projecting an imaginary line through point O perpendicular to the...
    18 KB (2,263 words) - 03:56, 10 March 2025
  • demolished), Tacking Point Lighthouse and Richmond River Light, designed by James Barnet in 1878 Point Perpendicular Light (1899), Cape Byron Light (1901) and Norah...
    80 KB (2,935 words) - 00:01, 19 May 2025
  • Thumbnail for Polarizer
    reflectivity is different for light polarized in the plane of incidence and light polarized perpendicular to it. Light polarized in the plane is said...
    38 KB (4,879 words) - 21:20, 23 March 2025
  • Thumbnail for Tangential and normal components
    vector, and another one perpendicular to the curve, called the normal component of the vector. Similarly, a vector at a point on a surface can be broken...
    5 KB (709 words) - 00:30, 8 June 2024
  • Thumbnail for Cape St George Lighthouse
    the vicinity of Jervis Bay. The light was eventually replaced in 1899 by Point Perpendicular Light in Point Perpendicular, a much more suitable location...
    10 KB (1,107 words) - 20:32, 21 June 2024
  • Thumbnail for Malus–Dupin theorem
    Hamiltonian optics method. Consider a pencil of light rays in a homogenous medium that is perpendicular to some surface. Pass the pencil of rays through...
    5 KB (657 words) - 13:20, 12 April 2025
  • between a ray incident on a surface and the line perpendicular (at 90 degree angle) to the surface at the point of incidence, called the normal. The ray can...
    4 KB (402 words) - 17:50, 21 March 2025
  • Thumbnail for Collimated beam
    optical cavity between two parallel mirrors which constrain the light to a path perpendicular to the surfaces of the mirrors. In practice, gas lasers can...
    9 KB (1,022 words) - 16:02, 13 November 2024
  • Thumbnail for Isophote
    surface at point P and ⁠ v → {\displaystyle {\vec {v}}} ⁠ the unit vector of the light's direction. If b(P) = 0, i.e. the light is perpendicular to the surface...
    5 KB (719 words) - 10:22, 18 November 2023
  • Thumbnail for Synchrotron light source
    fields perpendicular to the beam that are needed to stimulate the high energy electrons to emit photons. The major applications of synchrotron light are...
    27 KB (3,146 words) - 21:32, 20 May 2025
  • lens can increase light output by distributing light perpendicular to the chip surface and far to the sides of the photon emission point. The ideal shape...
    32 KB (3,275 words) - 16:46, 16 March 2025
  • gives the (signed) displacement of the point x → {\displaystyle {\vec {x}}} from the plane that is perpendicular to n ^ {\displaystyle {\hat {n}}} and...
    17 KB (2,866 words) - 19:49, 24 September 2023
  • ratio is the intensity ratio between the perpendicular component and the parallel component of Raman scattered light. Early work in this field was carried...
    5 KB (652 words) - 01:57, 12 September 2023
  • Thumbnail for Brewster's angle
    propagating light is always perpendicular to the direction in which the light is travelling. The dipoles that produce the transmitted (refracted) light oscillate...
    15 KB (2,082 words) - 05:07, 22 March 2025
  • Thumbnail for Circular polarization
    at each point, the electromagnetic field of the wave has a constant magnitude and is rotating at a constant rate in a plane perpendicular to the direction...
    39 KB (5,008 words) - 00:00, 25 January 2025
  • Thumbnail for Perspective (graphical)
    e., the observer is on a normal, or perpendicular line to the plane). Then draw straight lines from every point in the object to the observer. The area...
    35 KB (3,572 words) - 03:49, 16 May 2025
  • Thumbnail for Thomson scattering
    the incoming and outgoing wave can be divided up into perpendicular components. Those perpendicular to the plane are "tangential" and are not affected....
    11 KB (1,537 words) - 06:33, 11 March 2025
  • inertial frame of reference;: 65  once velocities approach the speed of light, special relativity profoundly affects mechanics based on forces. In action...
    32 KB (4,084 words) - 01:58, 24 April 2025
  • Thumbnail for Norah Head Light
    successor Charles Assinder Harding, who also designed Cape Byron Light and Point Perpendicular Light. It is the last to be designed in this style. Construction...
    16 KB (1,939 words) - 06:34, 25 October 2024
  • Thumbnail for Vergence (optics)
    diverging. These imaginary rays are always perpendicular to the wavefront of the light, thus the vergence of the light is directly related to the radii of curvature...
    8 KB (1,174 words) - 06:50, 28 March 2022
  • Thumbnail for Birefringence
    terms of polarization, understanding light as a wave with field components in transverse polarization (perpendicular to the direction of the wave vector)...
    60 KB (6,595 words) - 10:58, 20 April 2025
  • Thumbnail for Velocity-addition formula
    the time slicing, the same factor multiplies the perpendicular component, but for the perpendicular component there is no length contraction, so the time...
    61 KB (11,196 words) - 04:51, 17 March 2025
  • Thumbnail for Moment of inertia
    extensive (additive) property: for a point mass the moment of inertia is simply the mass times the square of the perpendicular distance to the axis of rotation...
    91 KB (17,179 words) - 15:28, 14 May 2025