It's what you've all been waiting for: the sneaky preview of issue 3 on sale 31 December The jet engine explained Discover how oilrigs extract oil from the seabed Sharks – all you'll ever need to know about these underwater killers We take an in-depth look at the classic Spitfire fighter plane And ...

If you want to see what's inside the launch issue of How It Works then take a look at these sample spreads. Click to enlarge. Inside a medieval castle The Eurofighter Typhoon How vision and sight works Beneath the surface of the sun iPhone 3Gs ...