Some states resuming capital punishment after 'the year of the botched execution'

Canadian biophysicist James Till, who changed the future of medicine by proving the existence of stem cells with cell biologist Ernest McCulloch, was, by all accounts, a man of rare scientific rigour. If there’s any doubt, consider his pioneering research at the curling rink.Dr. Till loved curling, or, as he liked to call it, “chess on ice.”