• Still Life with Spherical Mirror is a lithography print by the Dutch artist M. C. Escher first printed in November 1934. It depicts a setting with rounded...
    1 KB (150 words) - 16:54, 11 February 2024
  • Indonesian shadow puppet.[citation needed] Alhazen's problem Still Life with Spherical Mirror Three Spheres II Lithography 1935 in art Locher, J.L. (2000)...
    2 KB (157 words) - 01:25, 6 June 2025
  • Another World (M. C. Escher) (category Articles with short description)
    This sculpture first appears in Escher's 1934 lithograph Still Life with Spherical Mirror. The picture is featured in the cover of the 1965 edition of...
    4 KB (589 words) - 10:21, 21 March 2024
  • 2030 in public domain (category Articles with short description)
    painting The Little Girl in Blue, and M. C. Escher's lithograph Still Life with Spherical Mirror. Popular songs entering the public domain in 2030 include "June...
    55 KB (985 words) - 19:00, 28 June 2025
  • Relativity (M. C. Escher) (category Articles with short description)
    architectural structure seems to be the centre of an idyllic community, with most of its inhabitants casually going about their ordinary business, such...
    3 KB (366 words) - 09:47, 2 February 2025
  • Three Spheres II (category Mirrors in art)
    transparent. The painting is in the Escher Museum in The Hague. Still Life with Spherical Mirror Hand with Reflecting Sphere Printmaking Locher, J. L. (2000). The...
    2 KB (194 words) - 05:23, 12 November 2024
  • 1934 in art (category Articles with short description)
    Epstein – Portrait bust of George Bernard Shaw M. C. Escher – Still Life with Spherical Mirror (lithograph) Leo Friedlander – marble reliefs outside Oregon...
    7 KB (702 words) - 08:59, 28 April 2025
  • Convex and Concave (category Articles with short description)
    first printed in March 1955. It depicts an ornate architectural structure with many stairs, pillars and other shapes. The relative aspects of the objects...
    2 KB (181 words) - 01:07, 17 May 2024
  • Thumbnail for Catadioptric system
    aberration of the spherical mirror. Light passes through the glass twice, making the overall system act like a triplet lens. Mangin mirrors were used in searchlights...
    16 KB (1,851 words) - 17:11, 4 February 2025
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    Vera C. Rubin Observatory (category Articles with short description)
    primary mirror parabolic removes spherical aberration on-axis, but the field of view is then limited by off-axis coma. Such a parabolic primary, with either...
    111 KB (10,849 words) - 21:23, 1 July 2025
  • Thumbnail for Reflecting telescope
    Reflecting telescope (category Articles with short description)
    both a spherical mirror and a lens (called a corrector plate) as primary optical elements, mainly used for wide-field imaging without spherical aberration...
    33 KB (3,948 words) - 15:45, 28 April 2025
  • Thumbnail for Newtonian telescope
    Newtonian telescope (category Articles with short description)
    ratio with a proportionally small diagonal mirror mounted on the corrector. A Jones–Bird Newtonian (sometimes called a Bird–Jones) uses a spherical primary...
    17 KB (1,943 words) - 23:03, 7 June 2025
  • Thumbnail for Extremely Large Telescope
    Extremely Large Telescope (category Articles with short description)
    will use a novel design with a total of five mirrors. The first three mirrors are curved (non-spherical) and form a three-mirror anastigmat design for excellent...
    50 KB (5,386 words) - 07:10, 11 June 2025
  • Thumbnail for Mirrors in Mesoamerican culture
    beyond, with a polished gold Mixtec mirror back taking the form of a spider. The modern Huichol still associate mirrors with spider webs. Mirrors have been...
    61 KB (8,062 words) - 01:39, 20 February 2025
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    On Burning Mirrors. Ptolemy conducted a number of experiments with curved polished iron mirrors,: p.64  and discussed plane, convex spherical, and concave...
    119 KB (13,263 words) - 14:43, 31 May 2025
  • Thumbnail for Flat Earth
    Flat Earth (category Articles with short description)
    conspiracy theory in the 21st century. The idea of a spherical Earth appeared in ancient Greek philosophy with Pythagoras (6th century BC). However, the early...
    79 KB (9,109 words) - 19:52, 27 June 2025
  • Thumbnail for Fusion power
    Fusion power (category Articles with short description)
    or operating (50) worldwide. Spherical tokamak: also known as spherical torus. A variation on the tokamak with a spherical shape. Stellarator: Twisted...
    219 KB (22,686 words) - 00:25, 1 July 2025
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    Solar cooker (category Articles with short description)
    practical applications (like in car-headlights), concave mirrors are of parabolic shape. Spherical reflectors operate much like paraboloidal reflectors,...
    30 KB (4,037 words) - 09:52, 27 May 2025
  • Thumbnail for Retroreflector
    Retroreflector (category Articles with short description)
    sphere and (optionally) a spherical mirror. In the paraxial approximation, this effect can be achieved with lowest divergence with a single transparent sphere...
    40 KB (4,519 words) - 17:46, 28 June 2025
  • Thumbnail for Symmetry in biology
    Symmetry in biology (category Articles with short description)
    Although these viruses are often referred to as 'spherical', they do not show true mathematical spherical symmetry. In the early 20th century, Ernst Haeckel...
    35 KB (4,100 words) - 22:22, 30 December 2024
  • Thumbnail for Rear-projection television
    Rear-projection television (category Articles with short description)
    The Schmidt was still required to correct the image for spherical aberration from the mirror. The use of an additional plane mirror allowed the deflection...
    31 KB (4,207 words) - 02:42, 13 May 2025
  • Panoramic photography (category Articles with short description)
    two main types: the cylindrical panorama used primarily in stills photography and the spherical panorama used for virtual-reality images. Segmented panoramas...
    32 KB (3,718 words) - 02:42, 19 October 2024
  • Thumbnail for Lens
    Lens (redirect from Spherical lens)
    paired up with curved mirrors to make a catadioptric system where the lens's spherical aberration corrects the opposite aberration in the mirror (such as...
    70 KB (8,337 words) - 03:38, 25 June 2025
  • Thumbnail for John Napier
    John Napier (category Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference)
    by applying the rules for the right spherical triangle of the previous section to the polar triangle A'B'C' with sides a',b',c' such that A' = π − a, ...
    34 KB (4,206 words) - 21:28, 18 May 2025
  • Timeline of telescope technology (category Pages with broken anchors)
    aspherizing spherical mirrors to make very accurate parabolic mirrors and produces a much improved Gregorian telescope 1721 — John Hadley experiments with the...
    16 KB (1,605 words) - 01:40, 3 January 2025
  • most of his time in a territory called Dream Land. He has a pink, spherical, body with small stubby arms and large red feet. His body composition has not...
    65 KB (6,460 words) - 11:29, 30 June 2025
  • Cosmology of Tolkien's legendarium (category Articles with short description)
    theology and metaphysics with pre-modern cosmological concepts in the flat Earth paradigm, along with the modern spherical Earth view of the Solar System...
    39 KB (4,786 words) - 00:41, 14 May 2025
  • Thumbnail for Combine (Half-Life)
    themselves into the air and detonate when an enemy is detected nearby, while spherical rollermines roll towards vehicles or enemies, attach themselves and deliver...
    40 KB (4,646 words) - 13:47, 21 May 2025
  • Thumbnail for Thirty Meter Telescope
    Thirty Meter Telescope (category Articles with short description)
    telescope with a light-gathering mirror larger than 20 meters (66 ft) in diameter, using either small segments that create one large mirror, or a grouping...
    78 KB (7,656 words) - 09:26, 25 June 2025
  • Thumbnail for History of the telescope
    History of the telescope (category All articles with dead external links)
    out that a reflecting telescope with a mirror that was shaped like the part of a conic section, would correct spherical aberration as well as the chromatic...
    75 KB (9,307 words) - 04:49, 24 April 2025