It can be used as a source of the reactive nitride ion.
Uthman ibn Affan
Uthman ibn Affan () was the third ruler of the Muslim Empire and one of the four righteous caliphs of Sunni Islam. Uthman belonged to a noble family of Ummayyah, branch of the Quraish in Makkah. Uthman was one of the very few who was literate. When he became older, he started a business in cloth, which made him very rich.
He was born in about the year 583 and was ruler for 12 years. During his time as ruler he conquered Khurasan and the regions of the west of the Arabian Peninsula. He also united the Muslim upon one uniform version of the Quran. He was well known for marrying two of Muhammad's daughters, Ruqayyah and Umm Kulthum, both at different times. For this, he became known as "Dhu al-Nurayn", the "Possessor of Two Lights". He participated in both immigrations, first to Ethiopia and then to Medina.
He was attacked while in his house, although he did not defend himself out of fear of further trouble. He was killed while reading the Qur'an by Sudaan ibn Hamran on Friday, June 17, 656. He died aged 72-73 years.
Calcium permanganate
Calcium permanganate is a chemical compound. Its chemical formula is Ca(MnO). It contains calcium and permanganate ions.
Calcium permanganate is a dark purple solid. It is a powerful oxidizing agent. It is similar to potassium permanganate. It can catch some organic chemicals like alcohol on fire. It can cause an explosion when mixed with sulfuric acid. This is because manganese(VII) oxide.
It can be made by calcium oxide with manganese(IV) oxide and calcium nitrate.
It might whiten teeth. It can be used as an oxidizing agent, although potassium permanganate is more common.
Calcium nitrate
Calcium nitrate, also known as Norwegian saltpeter, is a chemical compound. Its chemical formula is Ca(NO). It contains calcium and nitrate ions.
Calcium nitrate is a colorless solid. It is an oxidizing agent. It absorbs water from the air. It decomposes to make nitrogen dioxide and calcium oxide when heated.
Calcium nitrate is made by reacting calcium hydroxide or calcium carbonate with nitric acid. It is made when nitric acid reacts with calcium phosphate. It can be made by reacting ammonium nitrate and calcium hydroxide.
Calcium nitrate is used in fertilizers to add nitrogen to the soil. It can be complexed with urea to make a different nitrogen fertilizer.
Bray Wyatt
Windham Rotunda (born May 23, 1987) is an American professional wrestler. He is currently wrestling in WWE under the ring name Bray Wyatt. He was known as the leader of a stable with Luke Harper and Erick Rowan known as The Wyatt Family. Daniel Bryan was also a member for a short time before turning against the stable.
He first wrestled in WWE from 2009 to 2011 where he competed under the name Husky Harris and was a part of the stable, The Nexus. He competed on the 2nd season of WWE NXT but was eliminated 5th. Rotunda stayed in WWE's developmental territory, Florida Championship Wrestling (FCW), and made his debut as Bray Wyatt in FCW in April 2012. He stayed in FCW through its name change to NXT Wrestling (now WWE NXT), and returned to the main WWE roster in July 2013. The Wyatt Family quickly became some of the company's biggest heels ("bad guys").
WWE Smackdown Live! Tag Team Champion
WWE Champion
Terrestrial locomotion
Terrestrial locomotion has evolved as animals adapted from aquatic to terrestrial places. Movement on land makes different problems than that on water, with less friction instead being the effects of gravity.
There are three basic forms of movement found among land animals:
Movement on legs is the most common form of land movement. It is the simple form of movement of two big groups with many members, the vertebrates and the arthropods.
There are a number of land and amphibious limbless vertebrates and invertebrates. These animals, due to lack of legs, use their bodies to move. These movements are sometimes called to as "slithering" or "crawling".
Although animals have never have wheels for locomotion, some animals can move by rolling their whole body.
The fastest terrestrial animal is the cheetah, which can get speeds of about 104 km/h (64 mph).
Strong acid
In chemistry, a strong acid is an acid which ionizes (splits) completely in a solution of water. It always loses a proton (A H) when put in water. A weak acid does not always lose a proton, though; It can lose its proton, but not all the time. They also have a very low pH, usually between 1 and 3. Many strong acids have a negative pKa value, which means they are very strong.
The six common strong acids are: (Acronym:CBSPIN)
Almost strong acids include:
Hamilton, New Zealand
Hamilton is New Zealand's fourth largest city. It has a population of 140,700 people. It is the largest inland city in New Zealand. It has an area of . The mayor is Andrew King.
Incubator (disambiguation)
Incubator may refer to:
Liu Xiaobo
Liu Xiaobo (28 December 1955 – 13 July 2017) was a Chinese intellectual, writer, human rights activist and a political prisoner in China.
He has been President of the Independent Chinese PEN Center since 2003. On 8 December 2008, police stopped Liu and held him because of his work with Charter 08. He was not actually arrested until 23 June 2009. The government accused him of encouraging people to turn against the state. He had a trial on 23 December 2009. On 25 December 2009, the court decided he must go to prison for eleven years. The court also took away his political rights for two years.
He won the Nobel Peace Prize on 8 October 2010, for "his long and non-violent struggle for fundamental human rights in China." This was during the fourth time Liu was in prison.
He is the first Chinese person to win a Nobel Prize while living in China. He is also the third person to win the Nobel Peace Prize while in prison or detention. The others were Germany's Carl von Ossietzky in 1935 and Myanmar's Aung San Suu Kyi in 1991.
On 26 June 2017, he was granted medical parole after being diagnosed with terminal liver cancer. He died a few weeks later on 13 July 2017.
Liu was born in 1955 in Changchun, Jilin to an intellectual family. His father took him to the Inner Mongolia from 1969 to 1973 during the Down to the Countryside Movement. He worked in a village in Jilin province when he was 19 years old. He worked at a construction company after that.
In 1976, he studied at Jilin University and got a B.A. degree in literature in 1982. He earned an M.A. degree in 1984 from Beijing Normal University. Liu joined the faculty at Beijing Normal University after he graduated. He also received a Ph.D. degree there in 1988.
In the 1980s, his most important essays, "Critique on Choices - Dialogue with Le Zehou" and "Aesthetics and Human Freedom"' earned him fame in the academic field. The essay criticised a prominent Chinese thinker Li Zehou's philosophy.
Between 1988 and 1989, he was a visiting scholar at several universities outside of China, including Columbia University, the University of Oslo and the University of Hawaii.
During the 1989 Tiananmen Square protests he was in the United States but decided to go back to China to join the movement. He was later named as one of the "Four Junzis of Tiananman Square" by many Hong Kong- and Taiwan-based Chinese media.
Liu Xiaobo works to increase human rights. He has asked the Chinese government to be more open and honest about its actions. The Chinese government has brought him to police stations, arrested him, and sent him to prison many times for his peaceful political activities. The first time was for his actions in the Tiananmen Square protests of 1989. Organizations outside China have noticed Liu's human rights work and given him awards. In 2004, Reporters Without Borders honored Liu's human rights work, awarding him the Fondation de France Prize as a defender of press freedom.