Ppampicture/Getty Images There's nothing quite like starting your day with a warm cup of coffee, particularly when it's an espresso. Its aroma, flavor, and pick-me-up are hard to beat. The first espresso machines were created…

Andrew Harker/Shutterstock Attack helicopters have become a staple of modern warfare and are emblazoned on the public consciousness through appearances in many Hollywood blockbusters, military documentaries, and newsreels. They have played an essential role in…