Charles Dillon Perrine
Charles Dillon Perrine (July 28, 1867 – June 21, 1951) was an American astronomer living in Argentina. He won the Lalande Prize in 1897.
Monte Mario Observatory
The Monte Mario Observatory (Sede di Monte Mario, literally "Monte Mario Site") is an astronomical observatory and is part of the Rome Observatory (Osservatorio Astronomico di Roma). It is located atop of Monte Mario in Rome, Italy.
How to Drown Dr. Mracek, the Lawyer
How to Drown Dr. Mracek, the Lawyer () is a Czech comedy film directed by Václav Vorlíček. It was released in 1974.
History of timekeeping devices
Although the Greeks and Romans did much to advance water clock technology, they still continued to use shadow clocks. The mathematician and astronomer Theodosius of Bithynia, for example, is said to have invented a universal sundial that was accurate anywhere on Earth, though little is known about it. Others wrote of the sundial in the mathematics and literature of the period. Marcus Vitruvius Pollio, the Roman author of De Architectura, wrote on the mathematics of gnomons, or sundial blades. During the reign of Emperor Augustus, the Romans constructed the largest sundial ever built, the Solarium Augusti. Its gnomon was an obelisk from Heliopolis. Similarly, the obelisk from Campus Martius was used as the gnomon for Augustus's zodiacal sundial. Pliny the Elder records that the first sundial in Rome arrived in 264 BC, looted from Catania, Sicily; according to him, it gave the incorrect time until the markings and angle appropriate for Rome's latitude were used—a century later.
Johannes Stöffler
Johannes Stöffler was born on 10 December 1452, in Justingen near Blaubeuren on the Swabian Alb. Having received his basic education at the Blaubeuren monastery school, he registered at the newly founded University of Ingolstadt on 21 April 1472, where he was consequently promoted Baccalaureus in September 1473 and Magister in January 1476. After finishing his studies he obtained the parish of Justingen where he, besides his clerical obligations, concerned himself with astronomy, astrology and the making of astronomical instruments, clocks and celestial globes. He conducted a lively correspondence with leading humanists - for example, Johannes Reuchlin, for whom he made an Equatorium and wrote horoscopes.
Clock Tower, Brighton
The Clock Tower (sometimes called the Jubilee Clock Tower) is a free-standing clock tower in the centre of Brighton, part of the English city of Brighton and Hove. Built in 1888 in commemoration of Queen Victoria's Golden Jubilee, the distinctive structure included innovative structural features and became a landmark in the popular and fashionable seaside resort. The city's residents "retain a nostalgic affection" for it, even though opinion is sharply divided as to the tower's architectural merit. English Heritage has listed the clock tower at Grade II for its architectural and historical importance.
Prague astronomical clock
The oldest part of the Orloj, the mechanical clock and astronomical dial, dates back to 1410 when it was made by clockmaker Mikuláš of Kadaň and Jan Šindel, then later a professor of mathematics and astronomy at Charles University. The first recorded mention of the clock was on 9 October 1410. Later, presumably around 1490, the calendar dial was added and the clock facade was decorated with gothic sculptures.
William Brydone Jack Observatory
The William Brydone Jack Observatory is a small astronomical observatory on the campus of the University of New Brunswick in Fredericton, New Brunswick. Constructed in 1851, it was the first astronomical observatory built in British North America. The observatory was designated a National Historic Site of Canada in 1954.
Robert Linderholm
Robert Linderholm (October 19, 1933 – July 6, 2013) was an American amateur astronomer who discovered several asteroids. He lived in Cambridge, Nebraska.
Václav Brožík
Václav Brožík ( ; 6 March 1851, Třemošná - 15 April 1901 Paris) was a Czech painter who worked in the academic style.
Mihran Azaryan
Mihran Azaryan (Born Izmit, Ottoman Empire 1876 – died Istanbul, Turkey 1952) was an Ottoman Armenian and Turkish architect who is best known for having designed and constructed the Büyükada Pier and possibly the Izmit Clock Tower.
John Knibb
John Knibb (1650–1722) was an English clockmaker born in Claydon, Oxfordshire. He produced various clocks and watches including bracket clocks, lantern clocks, longcase clocks, and some wall-clocks, as well as building and maintaining several turret clocks. Even though his main market was catering to customers of modest means, he also dominated the higher-quality sector. Only six of Knibb's watches are known to survive.
Astronomical clock
The first clock was built between 1352 and 1354 and stopped working sometime at the beginning of the 16th century. A second clock was then built by Herlin, Conrad Dasypodius, the Habrecht brothers, and others, between 1547 and 1574. This clock stopped working in 1788 or 1789 (as it apparently stopped working gradually, each component being disconnected
May Events
May Events () is a Czech comedy film directed by Václav Berdych and Martin Frič. It was released in 1951.
Peter Andreas Hansen
Peter Andreas Hansen (born December 8, 1795, Tønder, Schleswig, Denmark – died March 28, 1874, Gotha, Thuringia, Germany) was a Danish German astronomer.
Václav Smetáček
Václav Smetáček (30 September 1906 in Brno – 18 February 1986 in Prague) was a Czech conductor, composer, and oboist.
Pierre de Rivaz
Pierre de Rivaz (17111772) was a French clockmaker of the 18th century, from Saint-Gingolph. He built a clock in 1740 that was powered by variations in air temperature and pressure, a type of Atmos clock.
Václav Šmídl
Václav Šmídl (born 18 March 1940) is a Czech former volleyball player who competed for Czechoslovakia in the 1964 Summer Olympics.
History of science
The astronomer Aristarchus of Samos was the first known person to propose a heliocentric model of the solar system, while the geographer Eratosthenes accurately calculated the circumference of the Earth. Hipparchus (c. 190 – c. 120 BC) produced the first systematic star catalog. The level of achievement in Hellenistic astronomy and engineering is impressively shown by the Antikythera mechanism (150-100 BC), an analog computer for calculating the position of planets. Technological artifacts of similar complexity did not reappear until the 14th century, when mechanical astronomical clocks appeared in Europe.
Time
The most precise timekeeping device of the ancient world was the water clock, or clepsydra, one of which was found in the tomb of Egyptian pharaoh Amenhotep I (1525–1504 BC). They could be used to measure the hours even at night, but required manual upkeep to replenish the flow of water. The Ancient Greeks and the people from Chaldea (southeastern Mesopotamia) regularly maintained timekeeping records as an essential part of their astronomical observations. Arab inventors and engineers in particular made improvements on the use of water clocks up to the Middle Ages. In the 11th century, Chinese inventors and engineers invented the first mechanical clocks driven by an escapement mechanism.
When was the astronomical clock built in the city where Václav Smetáček lived when he died?
Where did Václav Smetáček live when he died?
Prague
when was the astronomical clock in #1 built
1410