How It Works

How It Works No. 137

Welcome to How It Works, the magazine that explains everything you never knew you wanted to know about the world we live in. Loaded with fully illustrated guides and expert knowledge, and with sections dedicated to science, technology, transportation, space, history and the environment, no subject is too big or small for How It Works to explain.

United Kingdom
Future Publishing Ltd
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USD 36.99
13 Números

en este número

1 min.

“The heart has to pump between three and four times more blood during a race” Long-distance running is hard… we can all agree on that. Just watch a marathon and you’ll see people straining and sweating their way through. You might be surprised at the toll it takes on the human body though – and the benefits, despite the short-term damage that’s done to the heart and lungs. In this issue’s special feature, we explore what the benefits of training for a marathon are, the impact that race day has on your body at every mile, what muscles are employed with each stride and why certain running recovery techniques are so effective. It’s a fascinating read whether you’re a keen runner or just interested in human biology. Ben Editor For exclusive HIW news…

1 min.
meet the team…

Nikole Production Editor The European Space Agency’s Solar Orbiter is on its way to study our Sun and its poles. Learn more about its mission on page 64. Scott Staff Writer What’s inside the unopened tomb of the First Emperor of China and why hasn’t anyone looked inside? Find out on page 28. Baljeet Research Editor How does our brain feel love, and what changes in our body are caused by this powerful emotion? Explore the science of love on page 36. Duncan Senior Art Editor Turn to page 56 to see how advanced self-managing robots are helping humans in different ways and making our lives better. Ailsa Staff Writer The Himalayas are home to the world’s tallest mountains and lots of rare animals. Discover how this land came to be on page 44.…

1 min.
meet this issue’s experts…

Jo Elphick Jo is an academic lawyer and lecturer specialising in criminal law and forensics. She is also the author of a number of true crime books. Mark Smith A technology and multimedia specialist, Mark has written tech articles for leading online and print publications for many years. Andy Extance Andy is a freelance science writer based in Exeter, UK. He previously worked in early stage drug discovery research, followed by a brief stint in silicone adhesive and rubber manufacturing. Dr Andrew May Andrew has a PhD in astrophysics and 30 years in public and private industry. He enjoys space writing and is the author of several books. Amy Grisdale Volunteer animal worker Amy has an enormous breadth of experience on animal conservation projects. She specialises in writing about environmental topics. Steve Wright Steve has worked as an editor on various…

1 min.
mighty mandibles

Scurrying beneath the undergrowth, these beasty beetles can grow up to around eight centimetres long. Male stag beetles (Lucanus cervus) are most recognisable by their impressively oversized mandibles, reminiscent of a male deer (stag), hence the name. However, the female members of the species, like the one pictured here, are much smaller: around three to four centimetres long. This stag beetle was captured using light microscopy by Viktor Sykora for The Royal Photographic Society’s 2019 science photography competition. You can find out more about this year’s entries at rps.org/spoty.…

1 min.
stormy jupiter

Jupiter is well known as one of the Solar System’s most volatile planets. As a gas giant, Jupiter is mostly made up of hydrogen and helium, which surrounds a dense rock and ice core. Filling its gaseous atmosphere are bountiful amounts of hydrogen, helium, ammonia and methane, swept into massive storms by the planet’s aggressive winds that reach up to 539 kilometres per hour. This stormy scene of Jupiter’s northern hemisphere was captured by NASA’s Juno on its 20th pass of the planet. Orbiting between 8,600 and 18,600 kilometres above the giant storms, Juno snapped the swirling, high-altitude, bright-white clouds, commonly referred to as ‘pop-up’ clouds.…

2 min.
ancient shell reveals shorter days for dinosaurs

When dinosaurs still left fresh footprints on the mud, our planet twirled around faster than it does today. Chronicled in the rings of an ancient timekeeper is a story of days half an hour shorter and years a week longer than they are today. That ancient timekeeper is an extinct rudist clam, one of a group of molluscs that once dominated the role that corals fill today in building reefs. The clam belonged to the species Torreites sanchezi and lived 70 million years ago in a shallow tropical seabed which is now dry land in the mountains of Oman in the Middle East. This ancient clam grew extremely fast from its home in a dense reef, creating a growth ring on its shell for every day of the nine years that…