The Kirkwood gap and other connections among orbits are caused by orbital resonance.
Satin bowerbird
The satin bowerbird ("Ptilonorhynchus violaceus") is a small Australian bird known for its ability to build a special area for attracting females. This bower is filled with blue objects to help attract a female. There are six bird species in the bowerbird genus, of which five build a some kind of courting area. The golden bowerbird sits on a bridge he has made between sticks decorated like maypoles.
The satin bowerbird lives in rainforests and on the edge of drier forests along the east coast of Australia. They can be found from Cooktown in the north to Melbourne in the south.
They are a small bird, about long and weighing about . The young males and females look the same, with grey to green, brown and dark brown feathers. The belly is coloured a pale brown to cream color, with dark olive to grey crescent shapes. When the male becomes sexually mature at about seven years old he grows black feathers, with a shiny blue-purple shine. The male also has bright blue eyes, and a blue beak which is yellow on the end.
The satin bowerbird builds a special area, called a bower, to attract a female. They return to the same area every year, where they clear a space about in diameter and then build the bower. In the centre is two lines of thin sticks or grass, carefully lined up to north and south. He can paint the walls with a mixture of his saliva and crushed berries which he brushes on with a stick. He then places a collection of coloured objects in the entrance to the bower. These are usually blue or yellow, and can include feathers, and even plastic or glass. The male stands outside the bower and sings and may pick up the objects to show them to the female. If she is pleased with the performance and the bower, she will enter the bower, followed by the male and they mate quickly. She will then fly off to begin building a nest. The male has nothing more to do with her.
Kokborok language
Kok-borok (also spelled "Kok Borok") is the native language of the Borok people in the disputed territory of the Tripura Division and its neighboring areas of Bangladesh and the Republic of India. The word Kok-borok is a compound of the words "kok", which means "language", and "borok", which literally means "nation", but is used to denote the Borok people. Thus Kok-borok means "the language of Borok" or "the language of the Borok people".
There are more than 950.000 people speaking Kokborok. Kokporok is an official language in India, in the Tripura division.
Koch language
The Koch languages are a small family of Sino-tibetan languages. There are spoken in Bangladesh, India, Myanmar and Tibet. About 35.000 people speak Koch, about 30.000 speak Rabha.
Pope Gregory XIII
Pope Gregory XIII (; 7 January 1502 – 10 April 1585), born Ugo Boncompagni, was the head of the Catholic Church from 13 May 1572 to his death in 1585. He is best known for commissioning and being the namesake for the Gregorian calendar, which remains the internationally accepted civil calendar to this date.
Ugo Boncompagni was born in 1502, in Bologna.
Pope Paul IV appointed him Bishop of Viesti in 1558.
In 1564, he was made a cardinal by Pope Pius IV.
Cardinal Boncompagni was elected Pope at age 70; and he chose to be called Gregory XIII.
Pope Gregory was involved in Italian and European political disputes.
He founded the Gregorian University in Rome.
In the last year of his life, Gregory received an embassy from Japan.
Pope Gregory is famous for his correction of mistakes in the Julian calendar. To accomplish the necessary changes, the Gregorian calendar skipped ten days between 4 October 1582 and 15 October 1582.
George Augustine Taylor
George Augustine Taylor (August 1, 1872 – January 20, 1928) was an Australian artist, journalist, and inventor. He was the first person in Australia to fly a heavier-than-air craft.
Taylor was born at Sydney in 1872. He first became known as an artist, and was a member of the Sydney Bohemian set in the 1890s. He wrote about this part of his life in his book, "Those Were the Days", published in 1918. He drew for "The Bulletin", "Worker", "Sunday Times", "Referee", and "London Punch". Later he became interested in aviation and radio.Taylor was a member of the Dawn and Dusk Club, an group of bohemians and intellectuals that included the writer Henry Lawson. Taylor married his wife, Florence Mary Parsons in 1907.
On December 5, 1909, Taylor flew a glider for along Narrabeen beach. This was Australia's first manned flight. He had made the glider himself based on drawings by Lawrence Hargreave. The wooden framed glider had two wings, covered in calico, and a box kite tail. After his first flight, his wife Florence, flew the glider, and became the first Australian woman to fly an aircraft. During the day he became more confident and flew out over the sea, where the glider finally crashed.
Carmichael number
In number theory a Carmichael number is a composite positive integer formula_1, which satisfies the congruence formula_2 for all integers formula_3 which are relatively prime to formula_1. Being relatively prime means that they do not have common divisors, other than 1. Such numbers are named after Robert Carmichael.
All prime numbers formula_5 satisfy formula_6 for all integers formula_3 which are relatively prime to formula_5. This has been proven by the famous mathematician Pierre de Fermat. In most cases if a number formula_1 is composite, it does not satisfy this congruence equation. So, there exist not so many Carmichael numbers. We can say that Carmichael numbers are composite numbers that behave a little bit like they would be a prime number.
Richard Burton
Richard Walter Burton (10 November 1925 – 5 August 1984) was a Welsh stage and cinema actor.
He appeared in more than 40 movies and received 7 Academy Award nominations. He was a recipient of BAFTA, Golden Globe and Tony Awards for Best Actor. In the mid-1960s, Burton went up into the ranks of the top box office stars and by the late 1960s, was the highest-paid actor in the world. Burton received fees of $1 million or more plus a share of the gross receipts.
Burton remains closely associated in the public consciousness with his second wife, actress Elizabeth Taylor. The couple's relationship was rarely out of the news.
Burton was born Richard Walter Jenkins in the village of Pontrhydyfen, Neath Port Talbot, Wales. He grew up in a working class and Welsh-speaking household. He was the twelfth of thirteen children of a Welsh coal miner. His mother died before he was two years old. He was raised by his much older sister and her husband. He took his surname from his guardian Philip Burton, a teacher who coached him until he won a scholarship to Oxford University at the age of eighteen.
Burton was a youngster when he made his London acting debut in the play "The Druid's Rest". After leaving military service in the air force in 1947, he established himself as a stage actor. He appeared with John Gielgud in "The Lady's Not for Burning". His movie career began in 1949 with "The Last Days of Dolwyn".
In 1962, he replaced Stephen Boyd as Mark Anthony in the movie "Cleopatra" opposite Elizabeth Taylor. Their off-screen romance made tabloid headlines around the world. After divorcing their respective spouses, they married in 1964. They then appeared in 11 movies together. The two divorced in 1974. They then reconciled and remarried in 1975. They divorced again the following year.
Burton also appeared on Broadway in the musical "Camelot" and the play "Hamlet" directed by John Gielgud. He appeared on television in 1960 as Caliban in the Hallmark Hall of Fame production of "The Tempest" with Claire Bloom and Maurice Evans. He also appeared on "The Ed Sullivan Show" with Julie Andrews to sing "What Do the Simple Folk Do?" from "Camelot". This appearance boosted ticket sales for the stalled musical.