South African inventions

The vuvuzela ( ) is a horn with an inexpensive injection-moulded plastic shell about long, which produces a loud monotone note typically around B♭ 3 (the first B♭ below middle C). Some models are made in two parts to facilitate storage, and this design also allows pitch variation. Many types of vuvuzela, made by several manufacturers, may produce various intensity and frequency outputs. The intensity of these outputs depends on the blowing technique and pressure exerted. The indoor noise level caused the U.S. NCAA to permanently ban them after the 7 February 1987 Division I Men's Ice Hockey ga

chemical compound

type of gas detector used in gas chromatography

A Hertzoggie , also known in Afrikaans as a Hertzogkoekie or in English as a Hertzog cookie, is a jam-filled tartlet or cookie with a coconut topping commonly served on a cup-like pastry base.

Thawte Consulting (pronounced "thought") is a certificate authority (CA) for X.509 certificates. Thawte was founded in 1995 by Mark Shuttleworth in South Africa. As of December 30, 2016, its then-parent company, Symantec Group, was collectively the third largest public CA on the Internet with 17.2% market share.

thumb|Tellurometer model M/RA-1 thumb|Tellurometer model MRB2

thumb|250px|Dolosse forming a protective structure against a shoreline in [[Cape Town, South Africa.]]

device used to carry clean water more easily and efficiently than traditional methods, particularly in the developing world and rural areas

circuit for shortwave receivers to improve reception