• 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 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 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) - 11:38, 3 June 2025
  • Thumbnail for Crookhaven Heads Light
    from the former Cape St George Lighthouse which was replaced by Point Perpendicular Light in 1899. The name of the station was then changed to Crookhaven...
    7 KB (815 words) - 05:08, 23 May 2025
  • 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 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 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) - 19:44, 31 May 2025
  • 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 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 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 (3,158 words) - 23:22, 6 June 2025
  • 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
  • Thumbnail for Wollongong Head Lighthouse
    Head Lighthouse, also known as Flagstaff Hill Lighthouse or Flagstaff Point Light, is an active lighthouse located adjacent to the heritage-listed Wollongong...
    5 KB (482 words) - 13:54, 10 March 2023
  • 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
  • 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) - 06:52, 1 June 2025
  • Thumbnail for Kiama Light
    Kiama Light, also known as Kiama Harbour Light, is an active lighthouse in Kiama, New South Wales, Australia. The lighthouse is located close to the Kiama...
    5 KB (596 words) - 09:40, 13 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) - 14:22, 2 June 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 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) - 23:43, 26 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
  • Thumbnail for Equinox
    Equinox (redirect from Vernal point)
    disk. This is also the moment when Earth's rotation axis is directly perpendicular to the Sun-Earth line, tilting neither toward nor away from the Sun...
    32 KB (3,860 words) - 02:25, 7 June 2025
  • 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) - 11:23, 24 May 2025
  • Thumbnail for Alhazen's problem
    which the segment from one given point to the reflection point is perpendicular to the segment between the other given point and the circle center, the Huygens...
    33 KB (3,661 words) - 20:18, 10 June 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....
    12 KB (1,625 words) - 13:45, 6 June 2025
  • Thumbnail for Aurora
    Aurora (redirect from Auroral light)
    directions perpendicular to the local magnetic field. Pulsations were discovered to originate at or close to the equatorial crossing point of auroral...
    116 KB (12,896 words) - 19:52, 9 June 2025
  • Thumbnail for Huygens principle of double refraction
    vector occurs in all possible planes perpendicular to the direction of the light beam. Unpolarized light is a type of light wave where the electric field vector...
    17 KB (2,031 words) - 16:53, 23 May 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) - 11:08, 24 May 2025
  • Thumbnail for Mirror image
    object that appears almost identical, but is reversed in the direction perpendicular to the mirror surface. As an optical effect, it results from specular...
    11 KB (1,516 words) - 17:31, 31 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