How It Works: Can A Cow Jump? & Other Crazy Questions
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How much does the sky weigh? How do fish sleep? Why do boomerangs come back? These are just a few of the questions asked and answered in Can a Cow Jump? In this bookazine we’ll investigate some of the craziest questions around, diving into the science behind each and providing you with enough fascinating trivia and knowledge to last a lifetime. So, can a cow jump? Find out here!
but firmly to force the water through the ground beans. Bored of waiting for his drip coffee maker to deliver the goods, inventor Alan Adler developed the plunging method and fine paper filter to produce a high quality taste. Inventor Alan Adler’s AeroPress device can deliver high-quality coffee in less than a minute ©Thinkstock ; Illustration by Adrian Mann N HOW QUICKLY CA YOU MAKE A COFFEE? 55 How do noise-cancelling headphones work? NCELLING ACTIVE NOISE-CA hear, analyse system How does
A thick undertread means the core of the tyre can be retreaded multiple times. OPEN TREAD The deep open tread design makes the airless tyre easy to clean, and also provides superb traction. GREAT COMPATIBILITY Each tyre is ited with eight-hole steel hub bolts, allowing them to it all standard skidsteer machines. ZERO-DEGREE BELTS STRONG SPOKES The tyre’s polyresin spokes help make the ride more comfortable by reducing the amount of bounce when driving. Can a tyre run without air?
before GPS? It was extremely difficult. The street lighting of towns and major roads would have provided some clues but during World War II, with blackouts over Europe, night bombers flew with a navigator who used the airspeed and compass bearing to plot a course on a map. Over water, some planes were fitted with a calibrated periscope sight that allowed them to measure their motion relative to wave crests and so compensate for a crosswind. Later ‘LORAN’ and ‘Decca’ radio stations were set up
ThinkStock Dark chocolate is better for you than milk chocolate, as it generally contains more of the good stuff and less of the bad stuff. In other words, it has healthy monounsaturated fatty acids, less sugar, more fibre and therefore fewer carbohydrates. It also has much more iron and magnesium, more phosphorus and potassium, less sodium and less 23 Why can’t we cure the common cold? The common cold is caused by a number of viruses, making it hard to tackle the infection with a vaccination
forcing the plant to bend towards the light as a result. Sunflowers take their quest for sunlight to the extreme. They follow the sun throughout the day, physically rotating their leaves and flowers to make the most of the available light. At night they then unwind, returning to their starting position ready for sunrise. No one knows why the flowers follow the Sun as well as the leaves, but it’s thought the extra heat may help to grow more seeds. Gorillas and chimpanzees do not have the right