It has not been studied a lot despite being one of the biggest asteroids. It is a normal C-type asteroid with a primitive surface. Its orbit, however, is quite unusual. It's orbit is similar to that of 2 Pallas in its high inclination and eccentricity. Whereas Pallas and Eris - the only bigger bodies with comparably tilted orbits - have nodes near perihelion and aphelion, Euphrosyne's perihelion lies at the northernmost point of its orbit. During a rare perihelic opposition Euphrosyne is very high in the sky from northern latitudes, but invisible from such countries as New Zealand and Chile.
Its apparently low density suggests that, unlike 10 Hygiea, 704 Interamnia and 52 Europa, Euphrosyne is a loosely-packed rubble pile (an asteroid that has been broken apart by a collision with all the pieces pulled together by gravity). Its rotation period is very common for big asteroids, but nothing is known of its axial tilt.
Chemistry (band)
Chemistry is a Japanese band. This group is made up of two members: Douchin and Kawabata.They were the winners of the Asayan audition (similar to the American Idol series) in 2000 organized by Sony Music Entertainment Japan. It was formed in 2001. The first single is "PIECES OF A DREAM".
Misia (Japanese singer)
MISIA (born July 7, 1978 in Fukuoka, Fukuoka Kyūshū, Japan) is a Japanese singer who is most popular in Japan. One of her most famous songs is called "Everything".She served as an honorary ambassador on the 10th Conference of the Parties to the Convention on Biological Diversity (COP10) and the TICAD V (5th Conference on African Development) .
Pikaia
Pikaia gracilens is regarded as the earliest known primitive chordate from the Middle Cambrian fossil found near Mount Pika in the Burgess Shale of British Columbia. It was discovered by Charles Walcott in 1911. Walcott classified it as a Polychaete worm.
It was about 40 mm in length and swam above the sea-floor. Pikaia may have filtered particles from the water as it swam along. Only 60 specimens have been found to date.
Opabinia
Opabinia is a fossil animal found in Cambrian fossil deposits. Its sole species, Opabinia regalis, is known from the Middle Cambrian Burgess Shale of British Columbia. The discoverer of "Opabinia", Charles Doolittle Walcott, named it after a local mountain, Opabin Peak in the Canadian Rockies.
Thirty specimens of Opabinia are known and each ranges in size from 40 to 70 mm. The most intriguing feature of Opabinia are its five eyes found on the dorsal surface of the head. These eyes were used to search for food. Because of its flexible body it is not known whether Opabinia was pelagic or benthic.
Wiwaxia
Wiwaxia corrugata is an extinct species of animal known only from fossils found in Canada's Burgess Shale deposits.
Wiwaxia somewhat resembles a very small porcupine (about 30 mm in diameter) with its quills pulled out. The body is covered by both spines and scales. The spines are believed to have been used for defence purposes. Wiwaxia probably grazed or scavenged by walking or crawling along the sediment. One hundred and forty specimens are known from the Burgess Shale. Similar scales and spines have turned up in similarly aged sediments from elsewhere around the world suggesting that Wiwaxia was widespread during the Cambrian.
Cambrian
The Cambrian is the first geological period of the Palaeozoic era and the Phanerozoic eon. It lasted from 541 million years ago to 485.4 million years ago. Before it came the Ediacaran, and after it the Ordovician.
Biologists have learnt quite a lot about the soft parts of Cambrian animals. This is because places have been found where soft parts of organisms are preserved as well as their more resistant shells. This means our understanding of the Cambrian biota is better than that of some later periods.
Life on Earth changed greatly during the Cambrian period. Before the Cambrian, life was mostly small and simple. Complex organisms (metazoa) evolved during the Proterozoic era. But during the Cambrian period, some organisms used carbonate minerals for shells, so they had hard parts which could become fossils. There were many different kinds of life during the Cambrian period. This increase in the diversity of lifeforms was relatively rapid, and is called the Cambrian explosion. This adaptive radiation produced the first members of the main groups of animals, called phyla.
Almost all of this new life was in the oceans. There was little life on land except a layer of microbes. There were shallow seas near several continents, because a supercontinent called Pannotia had broken into smaller pieces. The seas were warm, and there was no ice at the North and South Pole. Many animals with hard shells appeared for the first time during the beginning of the Cambrian.
At the start of the Cambrian, the earlier animals (the Ediacaran biota) may have become extinct. It seems these older life forms were affected by new types which burrowed into the sea floor. This changed the conditions of life for the older types. The burrowing must have disturbed the mat of bacteria and algae which covered the sea-floor. About this time we find the first examples of many phyla. There are also some fossil traces on what was land at the time, so perhaps a few Cambrian organisms did leave the water.
Fossils from the Cambrian period sometimes show what the soft parts were like, unlike most fossils where the soft parts disappear. Fossils from the Burgess Shale in Ontario, Canada are examples of fossils with soft parts. Here are some life forms that first appeared in the Cambrian period, with the oldest ones first:
It is not always clear which phylum a fossil should be put into. So there are some fossils which are still being discussed, years after they were discovered.
Conjecture
A conjecture is an idea in mathematics that appears "likely" to be true but that has not been "proven" to be true.
After a conjecture is proven to be true, it becomes a theorem.
Until recently, one of the most famous conjectures was Fermat's Last Theorem. The name was incorrect, because although Fermat said he had a proof for it, none could be found in his notes. In 1992, British mathematician Andrew Wiles found a proof for it, making it a theorem and not a conjecture.
Other famous conjectures include:
Not every conjecture can be proven true or false. The continuum hypothesis, which describes the size of certain infinite sets, is an example. It was shown to be independent of the generally accepted axioms of set theory, which means that it cannot be proven true or false using those axioms. It is therefore possible to take this statement, or its negation, as a new axiom in a consistent manner (much as we can take Euclid's parallel postulate as either true or false).
In this case, if a proof uses this statement, researchers will often look for a new proof that "does not" require the hypothesis The one major exception to this in practice is the axiom of choice -- unless studying this axiom in particular, the majority of researchers do not usually worry whether a result requires the axiom of choice.
Boeing 787 Dreamliner
The Boeing 787 Dreamliner is a passenger aircraft made by Boeing. Its first flight took place on 15 December 2009. It was planned to be released earlier, but the first passenger flight of the airplane was in October 2011. Because of this some airlines will get their aircraft nearly 30 months late.
The aircraft has had some problems. It is being reviewed by the FAA and the Japanese aviation agency. On January 16, 2013, the FAA said that no 787s were allowed to fly in the U.S. The EASA, Japanese Transport Ministry, India's Directorate General of Civil Aviation (DGCA), and Chile's Dirección General de Aeronautica Civil (DGAC) also said that the 787 was not allowed to fly in their country.