BT is preparing to fight Ofcom over pension costs. Photograph: Andrew Milligan/PA BT is refusing to accept defeat in its battle to pass on part of the cost of its pension deficit to other telecoms firms which use its UK network to offer services. Chief executive Ian Livingston said BT will... 

Ann-Marie Pendrill, University of Gothenburg Swedish mathematicians have published new designs for what can eaily be the smoothest roller coaster ride. WASHINGTON (ISNS) — At the age of 74, retired roller coaster designer Werner Stengel still spends his days riding the latest loop-de-loops. “Trying... 

British Gas has warned of rising energy prices. Photograph: Voisin/Phanie/Rex Features Utility bills could be on the way up, British Gas warned today despite almost doubling profits in the first half of the year. Nick Luff, the finance director of parent company Centrica, said that energy... 

BSkyB’s Jeremy Darroch admitted there would be a ‘pause for breath’ after massive HD growth. Photograph: Eamonn McCabe for the Guardian The World Cup helped to attract more than 400,000 new subscribers to BSkyB’s HD service in the second quarter, as the company’s... 

General Sir ­Richard Dannatt said he only heard of the UK’s lead role in Helmand when Blair announced it at a 2004 summit. Photograph: Dylan Martinez/Reuters Tony Blair bounced military commanders into deploying large numbers of British troops to Afghanistan while they were facing a growing... 

Tony Hayward’s departure will be announced tomorrow Photograph: Reuters/Suzanne Plunkett Tony Hayward, chief executive of BP, is to leave the company, bowing to pressure over his handling of the Deepwater Horizon oil rig explosion, the aftermath of which has become America’s...