The BBC's Aaron Heslehurst explains how the light bulb became a million dollar idea.
Strawberry producers say they can't find enough humans to pick their fruit, so are robots the answer?
Sales of homes for more than £1m have hit a new high. See how many were sold near you in the last decade.
A senior EU official describes the UK's negotiating position as a "fantasy", after talks in Brussels.
Britain may be denied full access to the EU's Galileo satellite navigation system on security grounds after Brexit.
The average UK household income, after taxes and benefits are accounted for, is £19,432 per person.
An investor claims the world's largest luggage maker is using questionable accounting practices.
The fast food giant faces shareholder pressure to show "leadership in the elimination of plastic straws".
Consumers resumed spending last month after unseasonably cold weather kept shoppers at home in March.
The move comes as Germany's biggest lender attempts to return to profitability.