Caster Semenya

Mokgadi Caster Semenya Bronze OIB (born 7 January 1991) is a South African middle-distance runner and world champion. Semenya won gold in the women's 800 metres at the 2009 World Championships with a time of 1:55.45 in the final. Semenya also won silver medals at the 2011 World Championships and the 2012 Summer Olympics, both in the 800 metres.

Following her victory at the 2009 World Championships, it was announced that she had been subjected to gender testing. She was withdrawn from international competition until 6 July 2010 when the IAAF cleared her to return to competition. In 2010, the British magazine New Statesman included Semenya in a list of "50 People That Matter 2010".

Early life and education

Semenya was born in Ga-Masehlong, a village in South Africa near Polokwane (back then called Pietersburg), and grew up in the village of Fairlie, "deep in South Africa's northern Limpopo province." She has three sisters and a brother, and is said to have been a tomboy as a child.

CBC Sports

CBC Sports is the division of the Canadian Broadcasting Corporation responsible for English-language sports broadcasting. The CBC's sports programming primarily airs on CBC Television, with some additional broadcasts on CBC.ca, and occasionally CBC Radio One. (The CBC's French-language Radio-Canada network also produces some sports programming)

Once the country's dominant sports broadcaster, in recent years it has lost many of its past signature properties – such as the Canadian Football League, Toronto Blue Jays baseball, Canadian Curling Association championships, the Olympic Games for a period, the FIFA World Cup, and the National Hockey League – to the specialty channels TSN and Sportsnet. As of 2015, CBC's sports coverage is now largely restricted to Olympic sports and the Olympics proper, other amateur events, as well as the Calgary Stampede and show jumping from Spruce Meadows. CBC has maintained partial rights to the NHL as part of a sub-licensing agreement with current rightsholder Rogers Communications, although this coverage is produced by Sportsnet. The majority of CBC's sports coverage is broadcast by CBC Television on weekends under the blanket title Road to the Olympic Games (formerly CBC Sports Weekend).

IAAF Diamond League

The IAAF Diamond League is an annual series of track and field meetings held from 2010 onwards, beginning with the 2010 IAAF Diamond League. It was designed to replace the IAAF Golden League, which was held annually since 1998.

While the Golden League was formed to increase the profile of the leading European athletics competitions, the Diamond League's aim is to "enhance the worldwide appeal of athletics by going outside Europe for the first time." In addition to the original Golden League members (except Berlin) and other traditional European meetings, the series includes events in China, Qatar, and the United States.

Editions

Scoring system

Each one of the thirty-two disciplines (sixteen for male athletes, sixteen for females) is staged a total of seven times during the season. The top three athletes at each meeting are awarded points, and in the case of the Final meeting of the discipline the points are doubled.

1st place: 4 points; (Final: 8 points)
2nd place: 2 points; (Final: 4 points)
3rd place: 1 point; (Final: 2 points)

Caster

A caster (or castor) is an undriven, single, double, or compound wheel that is designed to be mounted to the bottom of a larger object (the "vehicle") so as to enable that object to be easily moved. They are available in various sizes, and are commonly made of rubber, plastic, nylon, aluminum, or stainless steel.

Casters are found in numerous applications, including shopping carts, office chairs, and material handling equipment. High capacity, heavy duty casters are used in many industrial applications, such as platform trucks, carts, assemblies, and tow lines in plants. Generally, casters operate well on smooth and flat surfaces.

Types

Casters may be fixed to roll along a straight line path, or mounted on a pivot or pintle such that the wheel will automatically align itself to the direction of travel.

Rigid casters

A basic, rigid caster consists of a wheel mounted to a stationary fork. The orientation of the fork, which is fixed relative to the vehicle, is determined when the caster is mounted to the vehicle. An example of this is the wheels found at the rear of a shopping cart in North America. Rigid casters tend to restrict vehicle motion so that the vehicle travels along a straight line.