A British adventurer has flown over the countryside north of Johannesburg by sitting in a chair attached to 100 helium balloons. Tom Morgan, part of a group called The Adventurists, said: 'It was a fairly indescribable feeling, wafting across Africa on a cheap camping chair dangling from a load of balloons'. He flew 15 miles (24km) in two hours, reaching an altitude of 8,300 feet (2,530 metres)