Luis von Ahn, co-founder and CEO of language-learning app Duolingo, shares his business advice.

Elodie Bateson, 11, from Limavady who is blind has become an expert at making short animated movies.

LJ Rich looks at the best of the week's technology news stories.

A lack of recycling facilities in Africa has spurred one Dutch company to import broken phones.

South Africa's main electricity company Eskom plans to switch from using coal to renewable energy.

How a former World War Two pilot came second in a cycling competition for older people.