K'o
K’o is one of several Mayan ceremonial center sites around and associated with the Classic Mayan city of Holmul located in modern-day Guatemala. Currently, the site boasts what may be the royal tomb of the earliest known Mayan ruler.
Geography
The site is located 15 kilometers west of the Belize border and 80 kilometers south of the Mexican border. It is one of several sites within a 6 km radius of Holmul and is southeast of Holmul across the Holmul River. The entire Holmul complex is located within Northeastern Guatemala in the central lowland Peten region. The area receives an average of 80 in. (2000 mm) of rainfall annually and temperatures generally range from 70-95 F (25-35 C) similar to the neighboring southern lowlands. The site of K’o sits at about 200–250 meters above sea level on the edge of the highland plateau. This placement allows the site easy access to wetlands and water sources. In fact, K’o elevation places it above several aguadas (water sources for various sites in the area) that branch from the Holmul River.
Käo
Käo may refer to several places in Estonia:
Kõo
Kõo is a village in Viljandi County, Estonia. It is the administrative centre of Kõo Parish. Kõo has a population of 326 (as of 2000).
References
External links
Knockout
A knockout (KO or K.O.) is a fight-ending, winning criterion in several full-contact combat sports, such as boxing, kickboxing, muay thai, mixed martial arts, karate, some forms of taekwondo and other sports involving striking. A full knockout is considered any legal strike or combination thereof that renders an opponent unable to continue fighting.
The term is often associated with a sudden traumatic loss of consciousness caused by a physical blow. Single powerful blows to the head (particularly the jawline and temple) can produce a cerebral concussion or a carotid sinus reflex with syncope and cause a sudden, dramatic KO. Body blows, particularly the liver punch, can cause progressive, debilitating pain that can also result in a KO.
In boxing, kickboxing, etc. a knockout is usually awarded when one participant falls to the canvas and is unable to rise to their feet within a specified period of time, typically because of exhaustion, pain, disorientation, or unconsciousness. For example, if a boxer is knocked down and is unable to continue the fight within a ten-second count, they are counted as having been knocked out and their opponent is awarded the KO victory.
Kevin Olusola
Kevin "K.O." Olusola (born October 5, 1988) is an American cellist, beatboxer, saxophonist, pianist, songwriter, producer, and singer. Olusola is best known as the beatboxer of the widely acclaimed vocal band Pentatonix. After the group won NBC's The Sing-Off in 2011, they released 5 albums which all charted in the top 5 of the Billboard 200 charts, have sold over 2 million records, and have amassed more than one billion views on their YouTube channel. Olusola has also been identified as developing the art of "celloboxing" (playing cello and beatboxing simultaneously). His celloboxing version of Mark Summer's "Julie-O" went viral in April 2011, which led him to become involved with Pentatonix. Olusola has performed at prestigious classical musical festivals such as the Amsterdam Cello Biennale and the Kronberg Academy Festival, opened the TED Conference in Vancouver, and was chosen by Quincy Jones to represent him in concert at the 2012 Montreux Jazz Festival on the same program as Bobby McFerrin and Chick Corea. Olusola is fluent in Mandarin.
K.O (rapper)
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Ntokozo Mdluli, popularly known by his stage name, K.O, is a South African rapper who rose to prominence with the group Teargas after releasing their critically acclaimed debut album K'shubile K'bovu in 2006, under Electromode Music.
Teargas, which then had three members, K.O, Ntukza and Ma-E, later released three other albums titled, Wafa Wafa (2008), Dark or Blue (2009) and Number Number (2012) (stylized as Num8er Num8er) which were all commercially successful. K.O, co-runs a music and entertainment company called "Cashtime Life".
K.O released the singles "Mission Statement","Son of a Gun", "Caracara" and Skhanda Love preceding the release of his solo debut studio album, Skhanda Republic which was released on November 7, 2014.
Personal life
In May 2014, K.O lost a significant amount of weight. This sent social media into a frenzy with rumours that K.O was HIV positive. However, his manager Thabiso Khati denied those rumours stating that K.O had undergone a strict diet plan and was exercising regularly. K.O later released a statement regarding his health and posted a picture of his blood test results on his Twitter and Instagram page, showing he was HIV negative.
Potassium oxide
Potassium oxide (K2O) is an ionic compound of potassium and oxygen. This pale yellow solid, the simplest oxide of potassium, is a rarely encountered, highly reactive compound. Some materials of commerce, such as fertilizers and cements, are assayed assuming the percent composition that would be equivalent to K2O.
Production
Potassium oxide is produced from the reaction of oxygen and potassium; this reaction affords potassium oxide, K2O. Treatment of the peroxide with potassium produces the oxide:
Alternatively and more conveniently, K2O is synthesized by heating potassium nitrate with metallic potassium:
Potassium hydroxide cannot be further dehydrated to the oxide but it can react with molten potassium to produce it, releasing hydrogen as a byproduct.
Properties and reactions
K2O crystallises in the antifluorite structure. In this motif the positions of the anions and cations are reversed relative to their positions in CaF2, with potassium ions coordinated to 4 oxide ions and oxide ions coordinated to 8 potassium. K2O is a basic oxide and reacts with water violently to produce the caustic potassium hydroxide. It is deliquescent and will absorb water from the atmosphere, initiating this vigorous reaction.
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