Movies and stories from the early 20th century sometimes show an elegant lady or gentleman using a magnifying glass to read a letter. Generically, a magnifying glass makes very small things appear ...

Created more than 400 years ago, the telescope is a tool that has allowed both amateurs and scientists alike to explore the sky in much more detail than they ever could with their naked eyes. All ...

For many of us, our multitasking iPhones have replaced many other tools and gadgets, including our cameras, calculators, torches, notepads, GPS units, and even our compasses. There's one more item ...