And second, researchers in the field disliked the idea of lobbing tennis shoes and old tyres into their pristine reactors.

ECONOMIST: Nuclear waste

The only non-Ethiopian bits of her shoes are the glue and the rubber soles cut from old lorry tyres.

ECONOMIST: Footwear may be Ethiopia��s commercial future

Like the modified old car, it has been designed to conform to new rules requiring reduced downforce, tyres which last an entire race and engines which last for two races.

BBC: SPORT | Motorsport | Formula One | Ferrari take wraps off 2005 car