Hundreds of people have demonstrated in Belgrade against plans to transfer the ashes of electricity pioneer Nikola Tesla to a Serbian Orthodox Cathedral. <br /><br />“Tesla brought the light, don’t leave him in the dark,” said a banner held by one protester. <br /><br />An urn containing the physicist and inventor’s ashes has been on display for decades at his museum in the city.<br /><br />Tesla, a Serb born in Croatia, was a pioneer in electricity, wireless communication and radio.<br /><br />Church and nationalist authorities want Tesla’s ashes moved to the cathedral and interred, not kept on display. <br /><br />The protesters, among them scientists, want his ashes to stay in the museum that honours his life’s work.