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Power to the people - The Denver Postwww.denverpost.com › › power-to-the-people
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13-Sep · Developed in South Africa in by Pettie Petzer and Johan Jonker, the roller is a surprisingly simple yet ingenious alternative.
South African ingenuity at work | News24
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SA has always been a nation of inventors, with its contributions honoured on international innovation platforms. The country has given the world some useful...
That giant sphere in Comcast’s new tower? Watch a futuristic...
www.inquirer.com
May 20, · The film, which revolves around the theme of ideas that shape the world, talks about projects that helped poor or sick people improve their lives. One short segment is on the Hippo Roller, developed in the early 1990s by South Africans Johan Jonker and Pettie Petzer, to transport water from wells without spills in Africa.
Revolutionary barrels improve the lives of villagers worldwide ...www.inspiraction.news › › revolutionary-b...
www.inspiraction.news
The inventors of this concept are two South Africans, Pettie Petzer and Johan Jonker. The Q Drum has also been created in South Africa.
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