Can overhead electrical cables interfere with radio signals? Are diesel and petrol made differently? What is a vasectomy? Can phantom limb pain be treated? Are memories passed on through your genes? How much water does it take to boil an egg? Can surgery fix collapsed vertebrae? Is a woman genetically related to her child who was concieved with a donor egg? Plus, scientists help people potentially paralysed with spinal chord injury to walk again. Like this podcast? Please help us by supporting the Naked Scientists