Pantographs were once used as simple mechanical devices for a range of tasks, including duplicating simple line drawings. [Tim] decided to make a modern electronic version that spits out G-Code ...

While each server and personal computer on the Internet has a unique address, locating an offending website is not as simple as -- for example -- tracing a telephone call. One of the main ...

So why hasn’t every country done that? Well, it’s not as simple as it appears. The efficiency of contact tracing in any epidemic depends on the characteristics of the infection and the speed ...