South African inventions

first_imgMediaClubSouthAfrica.com reporter The dolos, a South African invention in which interlocking blocks of concrete are used to protect seawalls and preserve beaches from erosion, at the Coega deep-water port.(Image copyright Coega)Where would you expect to find the inventor of the CAT scan, the makers of the “speed gun” used in cricket ovals the world over, or the world’s first oil-from-coal refinery?There’s a wide range of innovative and entrepreneurial activity in South Africa, backed up by a number of organisations that provide support for budding inventors and innovators.Q20CAT scanOil from coalHeart transplantSpeed gunKreepy KraulyAPS therapyPratley PuttyDolosseQ20, a multi-purpose lubricant The product was developed back in 1950 in Pinetown, KwaZulu-Natal, by a Mr Robertson, who reportedly had come up with an effective water repellent that kept rust at bay, eased squeaky door hinges, and made it easy to release rusted or seized nuts and bolts.Apparently Robertson did not know what to call it but he told his neighbour that it certainly had 20 answers to 20 questions, and the name Q20 stuck.Today the product, and others in the range, is used widely in South African offices, workshops and homes, and has set the standard for all subsequent similar products from around the world. It is also sold in the US and UK/Europe.According to Q20 manufacturing company Triton-Leo, the secret to the wonder substance’s efficiency is that unlike oil, it is heavier than water. Once Q20 is sprayed on water, it sinks to the bottom, where it acts as a water displacer and lubricant on the problem area.Triton-LeoCAT scanThe computed axial tomography scan, or CAT scan, was developed at Tufts University in the UK by South African physicist Allan Cormack and Godfrey Hounsfield of EMI Laboratories. Their achievement secured them the 1979 Nobel Prize in Physiology or Medicine.Cormack’s interest in the problem of X-ray imaging of soft tissues or layers of tissue of differing densities was first aroused when he took up the part-time position of physicist for a hospital radiology department.The two-dimensional representations of conventional X-ray plates were often unable to distinguish between such tissues. More information could be gained if X-rays of the body were taken from several different directions, but conventional X-ray techniques made this procedure problematic.In the early 1960s Cormack showed how details of a flat section of soft tissues could be calculated from measurements of the attenuation of X-rays passing through it from many different angles.He thus provided the mathematical technique for the CAT scan, in which an X-ray source and electronic detectors are rotated about the body and the resulting data is analysed by a computer to produce a sharp map of the tissues within a cross-section of the body.Nobel e-Museum: Allan CormackOil from coalSasol is the world’s first – and largest – oil-from-coal refinery. It is situated in Sasolburg in South Africa and provides 40% of the country’s fuel.The history of Sasol began in 1927 when a White Paper was tabled in Parliament to investigate the establishment of a South African oil-from-coal industry.It was realised then that, because South Africa did not have crude oil reserves, the country’s balance of payments had to be protected against increasing crude oil imports. After many years of research and international negotiations, the South African Coal Oil and Gas Corporation was formed in 1950.Major milestones include the first automotive fuel (1955), the construction of the National Petroleum Refiners of South Africa (1967), the establishment in 1990 of its first international marketing company, Sasol Chemicals Europe, and a joint venture agreement signed with Uzbekneftegaz in 2009 to establish a gas-to-liquids venture in Uzbekistan.Sasol has developed world-leading technology for the conversion of low-grade coal into value-added synfuels and chemicals.SasolHeart transplantThe world’s first heart transplant was performed by Dr Christiaan Barnard in Cape Town on 3 December 1967.Barnard was born in the town of Beaufort West in 1922. The seeds of his future career were sown when one of his patients delivered a baby boy with a heart defect which could not be remedied. The baby died, causing him to think deeply about the need for remedial surgery and the replacement of heart valves.A turning point came when Barnard was offered a chance to work in Minneapolis in the US under Professor Wagensteen, a great teacher of experimental surgery. The heart-lung machine was perfected, and this turned out to be the gateway to cardiac surgery.The idea of transplanting occurred to Barnard. If it was possible with kidneys, why not the heart? After more years of study in the US, he returned to South Africa with a parting gift from Prof Wagensteen – a heart-lung machine.Groote Schuur hospital was waiting his return in 1958 to start the first heart unit to perform a cardiac bypass operation.After performing the first successful kidney transplant on Edith Black, in October 1967 Barnard informed Professor Val Schrire, who had built up the cardiac clinic: “Everything is ready for a heart transplant. We have the team and we know how to do it.”In November 1967, Schrire called Barnard and told him that there was a suitable patient for a heart transplant. Louis Washkansky was suffering from heart failure and was prepared to take the chance. The rest is history.Barnard passed away in Cyprus, Greece on 2 September 2001 from an acute asthma attack.Speed gunThe South African-made speed gun, developed by Somerset West inventor Henri Johnson, was formally launched at The Oval in England during the 1999 Cricket World Cup.In 1992 Johnson, an engineer witha background in sonar and radar, invented the Speedball which was manufactured by South African firm Electronic Development House. The device accurately measures the speed and angles of speeding objects such as cricket and tennis balls.Generally referred to as a “speed gun”, Johnson’s gizmo is sold in cricketing countries and in the US and Europe. It has also been adapted for other ball sports such as tennis and golf. Johnson has since moved his company to Orlando, Florida, to better keep up with world trends.Kreepy KraulyThe swimming pool vacuum cleaner was invented by Ferdinand Chauvier, a hydraulics engineer who came to South Africa from the Belgian Congo in 1951.Chauvier quickly realised that there was a huge market for taking the hassle out of cleaning swimming pools, and went about inventing a machine that would do the job automatically, efficiently powered by the ordinary operation of the pool’s filter.But it wasn’t until 1974 that the first Kreepy Krauly was born in Chauvier’s Springs home.He died in 1985, but Kreepy Kraulys continue to keep thousands of pools clean in South Africa and the world over.APS therapyGervan Lubbe was flicking through an American medical journal one day when he stumbled across an article about pain relief. After reading all he could on the topic, he wondered whether it would be possible to electronically stimulate the body’s natural nerve impulses to relieve pain.Lubbe, had always had a keen interest in medicine, but never thought he was clever enough to be a doctor. So in his spare time he studied human anatomy and physiology until he thought he knew enough about the causes of arthritic pain. Then he set out inventing a device that would alleviate the problem.After building the first prototypes and obtaining approval from the health department and the Food and Drug Administration in the United States, Lubbe formed the company Tech Pulse in 1993 to produce, market and distribute the Action Potential Stimulation device.Today, Lubbe’s devices are sold in 41 countries, including the US, Europe and the Middle East. In South Africa alone, over 40 000 people use the little machines to relieve pain.APS TherapyPratley PuttyPratley’s famous glue is the only South African invention that has been to the moon. In 1969 the putty was used to hold bits of the Apollo XI mission’s Eagle landing craft together.Krugersdorp engineer George Montague Pratley invented his famous sticky stuff in the 1960s while looking for a glue that would hold components in an electrical box.Pratley died in 1983 and today the company is run by his son, Kim. Hundreds of tons of Pratley putty have been exported all over the world, and the company has diversified into other products.PratleyDolosseDolosse are large, unusually shaped concrete blocks weighing up to 20 tons. The structures are designed to break up wave action and protect harbour walls and coastal installations.Designed by Eric Merrifield and first installed in East London harbour, they are now used all over the world.The Coega Project, comprising an industrial development complex and deepwater port 20 kilometres east of the city of Port Elizabeth, recently made history with the casting of the biggest dolosse on the African continent.A layer of 25 000 30-ton dolosse has been laid on the two breakwaters for the deep-water harbour of Ngqura.According to Deon Retief, the partner responsible for the Nqura breakwater design at Prestedge Retief Dresner Wijnberg, the dolosse comprise the top layer of the main breakwater which, at 2.5 kilometres long, is the “largest by far” in Africa.Q20 extract by Emily van Rijswijck. Other information taken from Great South African Inventions by Mike Bruton, published by Cambridge University Press in their Indigenous Knowledge Library series. ISBN 978 0 521 74663 2.Useful linksAcademy of Science of South AfricaCouncil for GeoscienceCouncil for Scientific and Industrial ResearchDepartment of Science and TechnologyInnovation FundInnovation HubNational Advisory Council on InnovationNational Research FoundationNational Science and Technology Forum AwardsNational Science and Technology ForumPublic Understanding of BiotechnologySABS Designs InstituteSouth African Aids Vaccine InitiativeSouth African Biodiversity Information FacilitySouth African Bureau of StandardsSouthern African Large TelescopeSquare Kilometre Array South AfricaTechnology Top 100last_img read more

Militant attacks continue in Valley amid shutdown

first_imgJammu cops to donate a day’s salary to martyrs’ kin Tension prevailed in Kashmir Valley for the second consecutive day on Sunday as restrictions continued in parts of Srinagar.Meanwhile, militants opened fire at security forces in three places. In Bijbehara, militants fired at army’s road opening party. “Militants fled immediately after opening a few shots,” said a police spokesman. Militants also opened fire on the Army and CRPF camps in Bijbehara and Budgam on Saturday night.Meanwhile in south Kashmir, where two civilians and three militants died in Friday’s gunfight, a spontaneous shutdown impacted life. There were also sporadic incidents of stone-pelting.Locals alleged security forces barged into their residences following an incident of stone pelting in Astan Pora in Anantnag and “thrashed inmates”.Meanwhile, train services resumed services after halting it for two days. The service on Budgam-Srinagar-Anantnag- Qazigund- Banihal track has been resumed, said an official. Most separatist leaders were also placed under house arrest.A 26-year-old youth, who was injured after unknown gunmen opened fire at him at Pingleena area of Pulwama in south Kashmir on Saturday evening, succumbed to injuries in Srinagar hospital on Saturday night.The victim has been identified as Aijaz Ahmad Malik. He had received two bullets in the abdomen.Also Read  ‘No threat to pilgrims’Hurriyat chairman Syed Ali Geelani said on Sunday that there was no terror threat to the Amarnath Yatra pilgrims.“The people of Kashmir have always been friendly and generous to visitors, especially the Amarnath pilgrims. They have treated the Amarnath pilgrims with unique hospitality,” he said.“An adverse propaganda is being launched by the media suggesting that the pilgrims are facing a threat from the people of the State. Terror threat to the Amarnath Yatra is a brazen lie, aimed at maligning the people’s movement,” he said. He said the people of Kashmir “are not against any religion.” “Fanatical forces in India are desperate to give a bad name to the freedom movement and are relying on negative propaganda…”last_img read more

Guests check in at swanky Games Village

first_imgThe Games Village, the heart of the upcoming Commonwealth Games in the Capital, had its soft launch on Thursday with organisers claiming that the facilities and ambience at the venue make it one of the best of its kind in the world.A bird’s eye view of the Commonwealth Games Village in New Delhi on Thursday.The Village will be home to more than 7,200 athletes and delegates for the duration of the Games. Some of the participating countries have already started sending their delegates, while the athletes will start arriving from September 23.The Village, situated on the banks of the Yamuna adjacent to the Akshardham temple, has 14 blocks, 34 towers and 1,168 fully-furnished air-conditioned flats, out of which 1,100 will be used to accommodate athletes and delegates.The flats have between two and five bedrooms, with two occupants per room.The Village also has facilities such as a shopping centre, saloon, a bank and two swimming pools too.”One of the pools will be used for leisure and the other, of standard international dimensions, will be for training purposes,” Organising Committee’s additional director general Ashok Kapur said.”The Village also has VIP lounges, a post office, plaza, bar and an informal dining area,” he said.In a first, competitors in four disciplines will be able to train at the Village itself without having to go to the competition venues.”Apart from the swimmers, weightlifters, wrestlers and athletes will be able to train at the Village itself,” Dalbir Singh, mayor of the Games Village, said.advertisement”This facility had not been provided at any previous Commonwealth Games,” Singh said, adding that the paralympic competitors in powerlifting can also train there.The training area for athletes includes an eight-lane track as well as a separate throwing area.There is also seating arrangement for 1,086 people.”In this way, the athletes will save valuable time that they would otherwise have spent travelling to and from the competition venues,” Singh said.In addition, there is a state-of-the-art gymnasium for the residents.”There are machines for weight training, cardio-workouts as well as stretching,” Cyrus Appoo, gymnasium supervisor, said.Some delegates have already started assembling in the Capital with representatives from England, Wales, Scotland, Australia and New Zealand already working on registration formalities.”There are certain basic facilities we provide to all residents. If they want something extra, we will provide them a ‘rate card’ which has pre-determined charges for various facilities,” Kapur said.The soft launch started with an inter-faith prayer where leaders from various religions wished the Games success.”The soft launch is designed to give us a feel about what is required by the time all the athletes arrive. Whatever is missing can be arranged in the next few days as only nuts and bolts need to be looked into,” Kapur said.Organising Committtee chairman Suresh Kalmadi said that there will be daily entertainment programmes in the evenings.last_img read more