• Thumbnail for Ole Rømer
    Ole Christensen Rømer (Danish: [ˈoːlə ˈʁœˀmɐ]; 25 September 1644 – 19 September 1710) was a Danish astronomer who, in 1676, first demonstrated that light...
    46 KB (4,723 words) - 20:51, 5 March 2025
  • Thumbnail for Rømer's determination of the speed of light
    Danish astronomer Ole Rømer, who was working at the Royal Observatory in Paris at the time. By timing the eclipses of Jupiter's moon Io, Rømer estimated that...
    40 KB (5,317 words) - 09:42, 22 February 2025
  • Romer v. Evans, a United States Supreme Court case dealing with civil rights and state laws Rømer scale, a disused temperature scale named after Ole Rømer...
    893 bytes (160 words) - 07:54, 30 December 2024
  • Thumbnail for Ole Rømer Observatory
    Ole Rømer Observatory (Danish: Ole Rømer Observatoriet) is an astronomical observatory and museum, built in 1911 and located in Aarhus, Denmark. It is...
    11 KB (1,120 words) - 14:20, 22 October 2024
  • Thumbnail for Speed of light
    measurements to measure large distances to extremely high precision. Ole Rømer first demonstrated in 1676 that light does not travel instantaneously...
    145 KB (15,452 words) - 22:59, 8 March 2025
  • officer and politician Ole Rømer Aagaard Sandberg (1865–1925) and Hanna Krag (1870–1963). He was a paternal grandson of Ole Rømer Sandberg and maternal...
    6 KB (586 words) - 14:51, 3 December 2024
  • evidence as to why Rømer assigned the value of 7.5 degrees to water's freezing point. One proposed explanation: 367  is that Rømer initially intended...
    5 KB (591 words) - 14:12, 22 October 2024
  • led by the royal mathematician Ole Rømer, who established a national system of weights and measures on May 1, 1683. Rømer's system, which he updated in 1698...
    6 KB (691 words) - 08:52, 5 September 2023
  • rider Ole Birk Olesen (born 1972), Danish politician Ole Qvist, Danish goalkeeper Ole Ritter, Danish racing cyclist Ole Rømer, Danish astronomer Ole O. Sageng...
    2 KB (248 words) - 03:46, 11 January 2024
  • Greenhouses. Built in 1911, the Ole Rømer Observatory (56°07′40″N 10°11′36″E / 56.1277°N 10.1933°E / 56.1277; 10.1933 (Ole Rømer Observatory)) is an astronomical...
    7 KB (761 words) - 13:31, 26 February 2025
  • paternal grandson of Ole Rømer Sandberg, and thus a great-grandson of priest Christian Juell Sandberg, great-grandnephew of Ole Rømer Aagaard Sandberg (1811–1883)...
    3 KB (288 words) - 03:42, 18 July 2024
  • Thumbnail for University of Copenhagen
    and poet Nicholas Steno (1638–1696), a pioneer in anatomy and geology Ole Rømer (1644–1710), Danish astronomer. He made the first quantitative measurements...
    52 KB (4,865 words) - 08:51, 7 March 2025
  • Thumbnail for Fahrenheit
    Herman Boerhaave, his scale was built on the work of Ole Rømer, whom he had met earlier. In Rømer scale, brine freezes at zero, water freezes and melts...
    29 KB (3,002 words) - 10:41, 8 March 2025
  • computed as equivalent to about 7,421.5 metres (24,349 ft) by the astronomer Ole Rømer.) The geographical mile is closely related to the nautical mile, which...
    8 KB (943 words) - 04:20, 31 March 2024
  • Thumbnail for Solar eclipses on Jupiter
    shadow of Jupiter has been observed since the time of Giovanni Cassini and Ole Rømer in the mid Seventeenth Century. It was soon noticed that predicted times...
    6 KB (741 words) - 07:36, 16 August 2024
  • Thumbnail for Light
    measure the speed of light was conducted by Ole Rømer, a Danish physicist, in 1676. Using a telescope, Rømer observed the motions of Jupiter and one of...
    52 KB (6,466 words) - 23:40, 2 March 2025
  • Thumbnail for Daniel Gabriel Fahrenheit
    Copenhagen and astronomer, Ole Rømer, and was introduced to Rømer's temperature scale and his methods for making thermometers. Rømer told Fahrenheit that demand...
    19 KB (2,063 words) - 14:06, 10 March 2025
  • was employed as an assistant with the Ole Rømer Observatory in Aarhus, later as head of section. The Ole Rømer Observatory had been established in 1911;...
    4 KB (476 words) - 10:12, 19 September 2023
  • Huygens (1629–1695) Robert Hooke (1635–1703) Isaac Newton (1643–1727) Ole Rømer (1644–1710) Stephen Gray (1666–1736) Daniel Bernoulli (1700-1782) Benjamin...
    15 KB (1,761 words) - 18:23, 19 November 2024
  • Thumbnail for Mile
    used in northern Germany was 7.5325 km. Following its standardisation by Ole Rømer in the late 17th century, the Danish mile (mil) was precisely equal to...
    81 KB (7,164 words) - 10:53, 19 February 2025
  • Thumbnail for Frederick IV of Denmark
    most of the medieval capital. The King had been persuaded by astronomer Ole Rømer (1644–1710) to introduce the Gregorian calendar in Denmark-Norway in 1700...
    22 KB (2,207 words) - 07:17, 28 January 2025
  • state mile) Denmark, Hamburg, Prussia primarily for Denmark defined by Ole Rømer 07,585.9 Postmeile (post mile) Austria-Hungary Austrian units of measurement...
    20 KB (1,399 words) - 00:43, 16 November 2024
  • Thumbnail for Römer (crater)
    the northeast section of the Moon. It was named after Danish astronomer Ole Rømer. It lies in the southwestern part of the mountainous region named the...
    8 KB (487 words) - 10:31, 20 August 2024
  • Thumbnail for Copenhagen Fire of 1728
    on top of Rundetårn, instruments and records made by Tycho Brahe and Ole Rømer were destroyed. The exact time that the fire started is unknown. Various...
    24 KB (3,084 words) - 17:04, 28 January 2025
  • Thumbnail for Højbjerg
    also located in Højbjerg. The racecourse of Jydsk Væddeløbsbane. The Ole Rømer Observatory. Hørhaven, a parklike area in the Marselisborg Forests. View...
    3 KB (184 words) - 04:49, 5 October 2024
  • Thumbnail for Kroppedal
    centred on noted astronomer and engineer Ole Rømer (1644–1710). Kroppedal is located near the site of Ole Rømer's Tusculanum Observatory. Its collections include...
    2 KB (144 words) - 07:23, 26 December 2023
  • Thumbnail for Joachim Rønneberg
    training. On the maternal side he was a nephew of Ole Rømer Aagaard Sandberg, and thus a grandnephew of Ole Rømer Aagaard Sandberg, Sr. On the paternal side...
    23 KB (2,018 words) - 16:41, 18 January 2025
  • Thumbnail for Meridian circle
    sextant being preferred. These methods were very inconvenient, and in 1690, Ole Rømer invented the transit instrument. The transit instrument consists of a...
    31 KB (4,104 words) - 14:54, 20 August 2024
  • farmer, officer and politician Ole Rømer Aagaard Sandberg (1865–1925). As such he was a brother-in-law of Ole Rømer Aagaard Sandberg, farmer and MP from...
    4 KB (279 words) - 18:35, 9 February 2025
  • × 71 mm Gold 1954 31 May 2025 31 May 2026 50 kroner 153 × 78 mm Blue Ole Rømer Rundetaarn Stenvad long barrow 1957 21 May 1957 100 kroner 155 × 78 mm...
    34 KB (2,630 words) - 20:48, 5 February 2025