You could win an XD Design window solar charger by answering just one simple question based on the latest issue of How It Works magazine!
The XD Design window solar charger will ensure that your smartphone is always powered up when you’re on the go. The compact device simply sticks to any window using a suction cup and boosts your battery through a USB cable, displaying a green light when it’s full. The slim, lightweight charger is perfect for using at home or on your travels.
The answer to our quiz can be found somewhere in issue 77, in which we reveal the new wonders of the world, take a look at the power of magnetism and find out how video games are made!