#TEDxDar Speaker Erasto B. Mpemba In 1963, Tanzanian Erasto B. Mpemba discovered a phenomenon that questions principles of established Newtonian physics – this phenomenon became (internationally) known as the “Mpemba effect.” The Mpemba effect is the observation that under certain circumstances, warm water freezes faster than cold water.  Mr. Mpemba made this discovery while in form 3 at Magamba Secondary School, and later collaborated with University of Dar es Salaam Professor Denis Osborne to publish the Mpemba effect in a 1969 paper “Cool?” Although earlier allusions of the Mpemba effect were made by the likes of Aristotle, Francis Bacon, and Descartes, Mpemba’s resolve to question conventional physics – with unadulterated curiosity – illuminated a phenomenon overlooked in popular physics.   After his groundbreaking work Mr.  Mpemba went on to get a diploma from the College of African Wildlife Management in Moshi, completing further study in Natural Resource Management at the Canberra College of Advanced Education (now University of Canberra) in Australia, and a masters degree from Alpine, Texas, USA. He went on to become the Principal Game Officer in the Ministry of Natural Resources and Tourism in the Wildlife Division. He is now retired. 
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#TEDxDar Speaker

Erasto B. Mpemba

In 1963, Tanzanian Erasto B. Mpemba discovered a phenomenon that questions principles of established Newtonian physics – this phenomenon became (internationally) known as the “Mpemba effect.” The Mpemba effect is the observation that under certain circumstances, warm water freezes faster than cold water.  Mr. Mpemba made this discovery while in form 3 at Magamba Secondary School, and later collaborated with University of Dar es Salaam Professor Denis Osborne to publish the Mpemba effect in a 1969 paper “Cool?” Although earlier allusions of the Mpemba effect were made by the likes of Aristotle, Francis Bacon, and Descartes, Mpemba’s resolve to question conventional physics – with unadulterated curiosity – illuminated a phenomenon overlooked in popular physics.  

After his groundbreaking work Mr.  Mpemba went on to get a diploma from the College of African Wildlife Management in Moshi, completing further study in Natural Resource Management at the Canberra College of Advanced Education (now University of Canberra) in Australia, and a masters degree from Alpine, Texas, USA. He went on to become the Principal Game Officer in the Ministry of Natural Resources and Tourism in the Wildlife Division. He is now retired.