The Busy Beaver Challenge, a notoriously difficult question in theoretical computer science, is now producing answers so ...

Prime numbers are tricky things. We learn in school that they’re numbers with no factors other than 1 and themselves, and that mathematicians have known for thousands of years that an infinite number ...

The title is one of the essential documents linking a motor vehicle to its owner. Each state’s Department of Motor Vehicles (DMV) or equivalent agency issues titles for vehicles intended for use on ...