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52-hertz Whale
The 52-hertz whale, colloquially referred to as 52 Blue, is an individual whale of unidentified species that calls at the unusual frequency of 52 hertz. This pitch is at a higher frequency than that of the other whale species with migration patterns most closely resembling the 52-hertz whale'sthe blue whale (10 to 39 Hz) and the fin whale (20 Hz). Its call has been detected regularly in many locations since the late 1980s, and appears to be the only individual emitting a whale call at this frequency. However, the whale itself has never been sighted; it has only been heard via hydrophones. It has been described as the "world's loneliest whale", though potential recordings of a second 52-hertz whale, heard elsewhere at the same time, have been sporadically found since 2010. Characteristics The sonic signature is that of a whale, albeit at a unique frequency. At 52 hertz, it is a little higher than the lowest note on a double bass. The call patterns resemble neith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1952
Events January–February * January 26 – Black Saturday in Egypt: Rioters burn Cairo's central business district, targeting British and upper-class Egyptian businesses. * February 6 ** Princess Elizabeth, Duchess of Edinburgh, becomes monarch of the United Kingdom of Great Britain and Northern Ireland and the British Dominions: Canada, Australia, New Zealand, South Africa, Pakistan and Ceylon. The princess, who is on a visit to Kenya when she hears of the death of her father, King George VI, aged 56, takes the regnal name Elizabeth II. ** In the United States, a mechanical heart is used for the first time in a human patient. * February 14 – February 25 – The Winter Olympics are held in Oslo, Norway. * February 15 – The State Funeral of King George VI of the United Kingdom of Great Britain and Northern Ireland and the British Dominions and the last Emperor of India, takes place. George VI's coffin is brought in procession through London to Paddington Station wher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
52 (number)
52 (fifty-two) is the natural number following 51 and preceding 53. In mathematics Fifty-two is * the 5th Bell number, the number of ways to partition a set of 5 objects. * a decagonal number. * an untouchable number, since it is never the sum of proper divisors of any number, and it is a noncototient since it is not equal to ''x'' − φ(''x'') for any ''x''. * a vertically symmetrical number. In science *The atomic number of tellurium Astronomy *Messier object M52, a magnitude 8.0 open cluster in the constellation Cassiopeia, also known as NGC 7654. *The New General Cataloguebr>objectNGC 52, a spiral galaxy in the constellation Pegasus. In other fields Fifty-two is: *The approximate number of weeks in a year. 52 weeks is 364 days, while the tropical year is 365.24 days long. According to ISO 8601, most years have 52 weeks while some have 53. *A significant number in the Maya calendar *On the modern piano, the number of white keys (notes in the C major scale) *The numb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
52 BC
__NOTOC__ Year 52 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Pompeius and Scipio (or, less frequently, year 702 ''Ab urbe condita''). The denomination 52 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Republic * Consuls: Quintus Caecilius Metellus Pius Scipio Nasica and Gnaeus Pompeius Magnus. * Gnaeus Pompeius marries Cornelia Metella. * Milo is tried for the murder of Clodius. Despite Cicero's legal defence ('' Pro Milone'') he is found guilty and exiled in Massilia (modern Marseille). * Last year of Julius Caesar's Gallic Wars: ** March – Siege and capture of Avaricum (Bourges). ** April–May – Siege and repulse from Gergovia. ** July – Battle of the Vingeanne: Julius Caesar rebuffs, with his German auxiliaries, a Gallic cavalry attack of Vercingeto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2052
In contemporary history, the third millennium of the anno Domini or Common Era in the Gregorian calendar is the current millennium spanning the years 2001 to 3000 (21st to 30th centuries). Ongoing futures studies seek to understand what is likely to continue and what could plausibly change in the course of this period and beyond. Predictions and forecasts not included on this timeline * List of future astronomical events ** List of lunar eclipses in the 21st century ** List of solar eclipses in the 21st century * Projections of population growth * Climate change ** Representative Concentration Pathway ** Shared Socioeconomic Pathways * Extinction * List of dates predicted for apocalyptic events * Predictions and claims for the Second Coming * Near future in fiction * Works falling into the public domain in the United States 21st century 2000s * See: 2001 * 2002 * 2003 * 2004 * 2005 * 2006 * 2007 * 2008 * 2009 2010s * See: 2010 * 2011 * 2012 * 2013 * 2014 * 2015 * 201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AD 52
AD 52 ( LII) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Sulla and Otho (or, less frequently, year 805 ''Ab urbe condita''). The denomination AD 52 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Claudius attempts to control the Fucine Lake by digging a 5.6 km tunnel through ''Monte Salviano'', requiring 30,000 workers and eleven years. * In Rome a law prohibits the execution of old and crippled slaves. * Ananias, a high priest in Jerusalem, is sent to Rome after being accused of violence. * Barea Soranus is ''consul suffectus'' in Rome. * Pliny the Elder writes his account of the German wars. * Tiridates I, brother of Vologases I, comes to power in Armenia as an adversary of the Romans. * In Britain, governor Publi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
