For decades, America's detectives have made breakthroughs in crime using gun traces. A homicide investigator typically uses ballistics and serial numbers of weapons checked via a vast network of gun ...

[Pete] had a friend who would powder coat metal parts for him, but when he needed 16 metal parts coated, he decided he needed to develop a way to do it himself. Some research turned up the fluid bed ...

THIS ARTICLE IS republished from The Conversation under a Creative Commons license. Every year, on Easter Sunday, Irish republicans commemorate their martyrs, remembering lives lost during the 1916 ...