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Marie Ndieguene, a young civil engineer, is tackling post-harvest loss with a novel storage solution which allows crops to last longer and attract higher prices, and reduces waste
Engineering
Video caption: The storage solution is sustainably made, allows crops to last longer and reduces waste Railway Mania
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Video caption: Anthony Burton looks at the role of railway companies in the 19th Century. (1980) First transmitted in 1980, Anthony Burton discovers more about Britain's industrial past and the role of railway companies in the 19th Century.
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Video caption: How two engineers became the first to ever dive 11km to the bottom of the Mariana Trench. In 1960, Jacques Piccard and Lieutenant Don Walsh became the first humans ever to journey to the world's greatest depth, the bottom of the Mariana Trench in the Pacific Ocean.
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Video caption: East Coast Main Line: Concrete box pushed under railway in 'UK first' The box, heavier than the Eiffel Tower, was moved at 150cm per hour over nine days.
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Video caption: Branson's Virgin Orbit rocket in launch success Sir Richard Branson's rocket company Virgin Orbit puts its first satellites into space.
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Video caption: Concrete box used as Peterborough railway tunnel in 'UK first' The structure, heavier than the Eiffel Tower, is to be pushed underground to speed up journeys.
Kingfisher and bullet train
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Video caption: The story of the bird and the engineer. How the kingfisher inspired the design of a train The story of the bird and the engineer. How the kingfisher inspired the design of a train. #30Animals
By Jonathan Amos
BBC Science Correspondent
