How It Works Feed your mind with fascinating facts about the world around you

How do double glazing and triple glazing compare?

Find out how glass insulation keeps homes warm throughout winter Modern double-glazed windows consist of two layers of glass bonded together in one frame, allowing for better insulation and fewer drafts, meaning cheaper heating...

The Human Body: What is a mouth ulcer?

Image credit: Scientific Animations How these common but painful sores form and develop They’re the mouth irritations that can make eating a meal unbearable, but the cause of mouth ulcers or canker sores is...

The anatomy of a dolphin

Popular in human culture due to their intelligence and playfulness, dolphin species can be found all over the world, ranging in shape, size and character dramatically There are many species of dolphin ranging from...

Top secret spy tech

Explore an incredible world of all-seeing spy drones, biohacked insects, tracking cannons, and more There are only three words that come to mind when you think of spy gadgets: ‘Bond, James Bond’. For almost...

Why do our ears pop?

How do changes in pressure make our hearing go funny and our heads feel full? The middle ear separates the outer ear from the inner ear. It contains the three ear bones, which send...

How can we eat certain meats raw?

Question from Eduardo Raffaele Like us, animals carry microbes, most of which live on the skin or in the digestive system. Whole cuts of beef tend to be safe to eat rare because their...

Issue 131 preview: Top Secret Spy Tech

Enter a forbidden world of classified hardware and super-sneaky gadgets Also inside: Life-seeking Mars rover, the world’s most spectacular rocks, VR surgery and so much more! NEW AR ZONE! Bring the magazine to life...

The Human Body: What makes hair curl?

The secret to tousled tresses lies under the skin in the shape of the hair follicles Hairs might look similar from the outside, but put them under the microscope and you’ll notice tiny differences...

FREE ebook: How It Works issue 001

Travel back 10 years to the first ever issue of How It Works with this free ebook Enter here For more science and technology articles, pick up the latest copy of How It Works from...