David Harker's challenge to David Turnbull, his colleague at the General Electric Research Laboratory, was clear: “If you can undercool molten copper by more than a few degrees, I'll eat my hat!” ...

David Turnbull, 28, pleaded guilty at Bendigo Magistrates’ Court on Wednesday to intentionally causing serious injury. The court heard Turnbull, then 26, the victim and several others were ...