To control students, 117 US colleges and universities are given ex-military equipment, including MK-16s, armoured trucks and grenade launchers.
A giant lump of fat as long as three football pitches and weighing as much as 10 double-decker buses has been found blocking a sewer in East London.
Canadian engineers have created software that can tell when you’re driving and texting at the same time.
A Coca-Cola bottling plant in Mexico uses over a million litres of water a day.
The average Mexican household buys 1,500 litres of bottled water a year.
In the Netherlands, one machine operator can milk 150 cows an hour.