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
First transmitted in 1980, Anthony Burton discovers more about Britain's industrial past and the role of railway companies in the 19th Century.
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.
The box, heavier than the Eiffel Tower, was moved at 150cm per hour over nine days.
Sir Richard Branson's rocket company Virgin Orbit puts its first satellites into space.
The structure, heavier than the Eiffel Tower, is to be pushed underground to speed up journeys.
The story of the bird and the engineer. How the kingfisher inspired the design of a train. #30Animals
By Jonathan Amos
BBC Science Correspondent