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Mulalo Doyoyo
Mulalo Doyoyo (born 13 August 1970) is a South African engineer, inventor, and professor. Doyoyo is a researcher in applied mechanics, ultralight materials, green building, renewable energy, and other fields of engineering. He has lectured in different engineering disciplines including ocean engineering, civil and environmental engineering, and mechanical engineering. Doyoyo invented a cementless concrete, Cenocell, and Amoriguard coatings. Early life and education Mulalo Doyoyo was born at William Edie Hospital in Tshidimbini Venda to Khorommbi Doyoyo and Mudzuli (née Dzaga) of Vondwe village. Venda was a bantustan in northern South Africa during apartheid and is now part of the Limpopo Province. He started his bantu education schooling at Vondwe Lower Primary School in 1977 and then moved on to Tshidimbini Higher Primary School in 1981. He joined Tshidimbini Secondary School in 1984 where he studied until 1985. In 1986, he registered at Mbilwi Secondary School. He w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Master Degree
A master's degree (from Latin ) is an academic degree awarded by universities or colleges upon completion of a course of study demonstrating mastery or a high-order overview of a specific field of study or area of professional practice. A master's degree normally requires previous study at the bachelor's degree, bachelor's level, either as a separate degree or as part of an integrated course. Within the area studied, master's graduates are expected to possess advanced knowledge of a specialized body of and applied topics; high order skills in |
News24 (website)
News24 is an English-language South African news website created in October 1998 by the multinational media company, Naspers. Its team of approximately 100 journalists, led by editor-in-chief Adriaan Basson, are based in Cape Town, Johannesburg, Pretoria, Durban and Gqeberha. Its brands include Fin24, Sport24, Channel24, Health24, Arts24, Parent24, Wheels24, W24, Ride24 and Business Insider SA. News24 is owned by Media24, a South African media company, with interests in digital media and services, newspapers, magazines, e-commerce, book publishing, print and distribution. In August 2021, News24 launched a digital subscription service that offers premium investigative journalism, opinion, analysis and more to paying subscribers at R75 per month. It currently has more than 40 000 subscribers. History News24 was launched in October 1998 as part of Naspers’ new internet strategy under the company's new managing director at the time, Koos Bekker. According to the APP Annie's bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limpopo Province
Limpopo is the northernmost Provinces of South Africa, province of South Africa. It is named after the Limpopo River, which forms the province's western and northern borders. The capital and largest city in the province is Polokwane, while the provincial legislature is situated in Lebowakgomo. The province is made up of 3 former homelands of Lebowa, Gazankulu and Venda and the former parts of the Transvaal province. The Limpopo province was established as one of the new nine provinces after South Africa's first democratic election on the 27th of April 1994. The province's name was first "Northern Transvaal", later changed to "Northern Province" on the 28th of June 1995, together with two other provinces. The name was later changed again in 2002 to the Limpopo province. Limpopo is made up of 3 main ethnic groups namely; Pedi people, Tsonga people, Tsonga and Venda people. Traditional leaders and chiefs still form a strong backbone of the province's political landscape. Establ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apartheid
Apartheid (, especially South African English: , ; , "aparthood") was a system of institutionalised racial segregation that existed in South Africa and South West Africa (now Namibia) from 1948 to the early 1990s. Apartheid was characterised by an authoritarian political culture based on ''baasskap'' (boss-hood or boss-ship), which ensured that South Africa was dominated politically, socially, and economically by the nation's minority white population. According to this system of social stratification, white citizens had the highest status, followed by Indians and Coloureds, then black Africans. The economic legacy and social effects of apartheid continue to the present day. Broadly speaking, apartheid was delineated into ''petty apartheid'', which entailed the segregation of public facilities and social events, and ''grand apartheid'', which dictated housing and employment opportunities by race. The first apartheid law was the Prohibition of Mixed Marriages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bantustan
A Bantustan (also known as Bantu homeland, black homeland, black state or simply homeland; ) was a territory that the National Party administration of South Africa set aside for black inhabitants of South Africa and South West Africa (now Namibia), as part of its policy of apartheid. By extension, outside South Africa the term refers to regions that lack any real legitimacy, consisting often of several unconnected enclaves, or which have emerged from national or international gerrymandering.Macmillan DictionaryBantustan, "1. one of the areas in South Africa where black people lived during the apartheid system; 2. SHOWING DISAPPROVAL any area where people are forced to live without full civil and political rights." The term, first used in the late 1940s, was coined from Bantu' (meaning "people" in some of the Bantu languages) and '' -stan'' (a suffix meaning "land" in the Persian language and some Persian-influenced languages of western, central, and southern Asia). It subs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amoriguard
Amoriguard is a water-based paint with fillers based on recycled industrial waste. The colour has an effective 70% mass of solids, which occupy a volume of at least 55% excluding water. It was invented in South Africa by Mulalo Doyoyo and co-developed by Ryan Purchase. Substances in the paint such as volatile organic compounds, ammonia, formaldehyde, lead, alkyl phenol ethoxylate and glycol are low in quantity or absent. It is manufactured below critical pigment volume concentration (CPVC) which means that most voids between pigment particles in the dried film are filled with solid particles as opposed to air. The paint is hydrophobic and chemical A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., wi ...-resistant. References Paints South African inventions {{tech-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenocell
Cenocell is a patented concrete-like structural material that is manufactured without the addition of Portland cement. It was invented by Mulalo Doyoyo at the Georgia Institute of Technology. Cenocell is produced from a chemical reaction involving fly ash or bottom ash and various organic chemicals In chemistry, organic compounds are generally any chemical compounds that contain carbon-hydrogen or carbon-carbon bonds. Due to carbon's ability to catenate (form chains with other carbon atoms), millions of organic compounds are known. The s .... The chemical reaction produces foaming, and results in grey slurry that resembles bread dough. The mixture is then cured in ovens at temperatures near 100°C. The result is a homogenous mixture with a high strength and low weight. See also * Sulfur concrete References {{reflist Concrete Building materials Composite materials Sustainable building Heterogeneous chemical mixtures South African inventions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mechanical Engineering
Mechanical engineering is the study of physical machines that may involve force and movement. It is an engineering branch that combines engineering physics and mathematics principles with materials science, to design, analyze, manufacture, and maintain mechanical systems. It is one of the oldest and broadest of the engineering branches. Mechanical engineering requires an understanding of core areas including mechanics, dynamics, thermodynamics, materials science, structural analysis, and electricity. In addition to these core principles, mechanical engineers use tools such as computer-aided design (CAD), computer-aided manufacturing (CAM), and product lifecycle management to design and analyze manufacturing plants, industrial equipment and machinery, heating and cooling systems, transport systems, aircraft, watercraft, robotics, medical devices, weapons, and others. Mechanical engineering emerged as a field during the Industrial Revolution in Europe in the 18th century; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Engineering
Environmental engineering is a professional engineering discipline that encompasses broad scientific topics like chemistry, biology, ecology, geology, hydraulics, hydrology, microbiology, and mathematics to create solutions that will protect and also improve the health of living organisms and improve the quality of the environment. Environmental engineering is a sub-discipline of civil engineering and chemical engineering. While on the part of civil engineering, the Environmental Engineering is focused mainly on Sanitary Engineering. Environmental engineering is the application of scientific and engineering principles to improve and maintain the environment to: * protect human health, *protect nature's beneficial ecosystems, *and improve environmental-related enhancement of the quality of human life. Environmental engineers devise solutions for wastewater management, water and air pollution control, recycling, waste disposal, and public health. They design municipal water supply ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Civil Engineering
Civil engineering is a professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment, including public works such as roads, bridges, canals, dams, airports, sewage systems, pipelines, structural components of buildings, and railways. Civil engineering is traditionally broken into a number of sub-disciplines. It is considered the second-oldest engineering discipline after military engineering, and it is defined to distinguish non-military engineering from military engineering. Civil engineering can take place in the public sector from municipal public works departments through to federal government agencies, and in the private sector from locally based firms to global Fortune 500 companies. History Civil engineering as a discipline Civil engineering is the application of physical and scientific principles for solving the problems of society, and its history is intricately linked to advances in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Engineering
Marine engineering is the engineering of boats, ships, submarines, and any other marine vessel. Here it is also taken to include the engineering of other ocean systems and structures – referred to in certain academic and professional circles as “ocean engineering.” Marine engineering applies a number of engineering sciences, including mechanical engineering, electrical engineering, electronic engineering, and computer science, to the development, design, operation and maintenance of watercraft propulsion and ocean systems. It includes but is not limited to power and propulsion plants, machinery, piping, automation and control systems for marine vehicles of any kind, as well as coastal and offshore structures. History Archimedes is traditionally regarded as the first marine engineer, having developed a number of marine engineering systems in antiquity. Modern marine engineering dates back to the beginning of the Industrial Revolution (early 1700s). In 1712, Thomas New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renewable Energy
Renewable energy is energy that is collected from renewable resources that are naturally replenished on a human timescale. It includes sources such as sunlight, wind, the movement of water, and geothermal heat. Although most renewable energy sources are sustainable, some are not. For example, some biomass sources are considered unsustainable at current rates of exploitation. Renewable energy often provides energy for electricity generation to a grid, air and water heating/cooling, and stand-alone power systems. Renewable energy technology projects are typically large-scale, but they are also suited to rural and remote areas and developing countries, where energy is often crucial in human development. Renewable energy is often deployed together with further electrification, which has several benefits: electricity can move heat or objects efficiently, and is clean at the point of consumption. In addition, electrification with renewable energy is more efficient and therefore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
