When was the astronomical clock built in the place where Osvald Polivka died?
1410
Title: Brain
Passage: A key component of the arousal system is the suprachiasmatic nucleus (SCN), a tiny part of the hypothalamus located directly above the point at which the optic nerves from the two eyes cross. The SCN contains the body's central biological clock. Neurons there show activity levels that rise and fall with a period of about 24 hours, circadian rhythms: these activity fluctuations are driven by rhythmic changes in expression of a set of "clock genes". The SCN continues to keep time even if it is excised from the brain and placed in a dish of warm nutrient solution, but it ordinarily receives input from the optic nerves, through the retinohypothalamic tract (RHT), that allows daily light-dark cycles to calibrate the clock.
Title: Computer
Passage: At the University of Manchester, a team under the leadership of Tom Kilburn designed and built a machine using the newly developed transistors instead of valves. Their first transistorised computer and the first in the world, was operational by 1953, and a second version was completed there in April 1955. However, the machine did make use of valves to generate its 125 kHz clock waveforms and in the circuitry to read and write on its magnetic drum memory, so it was not the first completely transistorized computer. That distinction goes to the Harwell CADET of 1955, built by the electronics division of the Atomic Energy Research Establishment at Harwell.
Title: Daylight saving time in the United States
Passage: In the U.S., daylight saving time starts on the second Sunday in March and ends on the first Sunday in November, with the time changes taking place at 2: 00 a.m. local time. With a mnemonic word play referring to seasons, clocks ``spring forward, fall back ''-- that is, in springtime the clocks are moved forward from 2: 00 a.m. to 3: 00 a.m. and in fall they are moved back from 2: 00 a.m. to 1: 00 a.m. Daylight saving time lasts for a total of 34 weeks (238 days) every year, about 65% of the entire year.
Title: Clock Tower, Brighton
Passage: 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.
Title: Evening
Passage: Evening is the period of time at the end of the day, usually from about 6pm to bedtime. It is a daily astronomic event of variable time period between daytime and night, and the period in which the daylight is decreasing, after the afternoon and before night. There is no exact time for when evening begins and ends (equally true with night). Though the term is subjective, evening is typically understood to begin shortly before sunset and during twilight (sunset and twilight vary throughout the year), lasting until night -- typically astronomical sunset. There can be no precise definition in terms of clock time, but it is socially considered to start around 6 pm. and to last until nighttime or bedtime.
Title: Fredrik Church
Passage: The Fredrik Church was built in the baroque style after a design by Nicodemus Tessin the Younger. Its towers are a notable feature. The carillon is housed in the south tower, and there are 35 bells, which were installed in 1967 by the Bergenholtz bell foundry in Sigtuna. The clock chimes three times a day.
Title: Osvald Polívka
Passage: Osvald Polívka (24 May 1859 in Enns – 30 April 1931 in Prague) was an Austrian-born Czech architect associated with the Secession / Art Nouveau period in Prague. Polívka designed many of Prague's significant landmarks of the era, plus other work in Brno and elsewhere.
Title: Prague astronomical clock
Passage: 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.
Title: Astronomical clock
Passage: 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
Prague astronomical clock Osvald Polívka