The Fibonacci sequence is made up of numbers that are the sum of the previous two numbers in the sequence, starting with 0 and 1. It's 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144… 1 is 0+1, 2 is 1+1, 3 is 1+12, 5 is 2+3, and 8 is 3+5. The number after 144 is 233, or 89+144. The Fibonacci number describes the golden spiral, an ideal form much beloved by designerseverywhere. Interestingly, it also neatly matches the relationship between kilometers and miles. Cool math trick: Converting between miles and kilometers
Why do humans still have body hair? Human body hair might seem to be useless on today's modern man, but it could help us detect parasites, researchers suggest, adding there's a chance our female ancestors preferred a bug-free mate, and so opted for hairier guys. Humans appear relatively hairless compared with our ape relatives, but the density of hair follicles on our skin is actually the same as would be expected of an ape our size. The fine hairs that cover our bodies, which have replaced the thicker ones seen on our close relatives, are thought to be an evolutionary leftover from our hairy ancestors.
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LiveScience Staff | October 06, 2011 01:12pm ET Credit: Apple News of the death of Apple founder Steve Jobs on Oct. 5, 2011, has been received with sadness, admiration and gratefulness for a man considered a "creative genius" who "changed the world" in many ways. In addition to Jobs, plenty of great minds have challenged paradigms, opened windows into worlds we didn't even know existed, and produced innovations that have persisted through time. Here's a look at the world's titanic thinkers, from Charles Darwin and Albert Einstein to Stephen Hawking. Creative Genius: The World's Greatest Minds | Steve Jobs, Stephen Hawking & Albert Einstein | Geniuses
End of the World? Top Doomsday Fears | May 21 Doomsday, 2012 Doomsday | Apocalypse Scenarios Credit: © Dgrilla | Dreamstime.com With more and more technologies able to wreak mass destruction, a greater knowledge of what cosmic threats our planet faces, and more forms of media capable of trumpeting Armageddon, it seems as if there is more hype than ever about one supposedly impending apocalypse or another in 2012, despite all the failed doomsday predictions over the years. Here are 10 apocalyptic scenarios that have raised fears about the end of civilization, in alphabetical order.
Countdown: 7 Medical Myths Even Doctors Believe | Untrue Medical Myths & Common Medical Misconceptions Robert Roy Britt | January 24, 2012 10:00am ET Credit: sukiyaki | shutterstock Popular culture is loaded with myths and half-truths. Most are harmless. But when doctors start believing medical myths, perhaps it's time to worry. In 2007, a study published in the British Medical Journal looked into several common misconceptions, from the belief that a person should drink eight glasses of water per day to the notion that reading in low light ruins your eyesight. "We got fired up about this because we knew that physicians accepted these beliefs and were passing this information along to their patients," said Aaron Carroll, assistant professor of pediatrics at the Indiana University School of Medicine.
When your head hits the pillow, for many it's lights out for the conscious part of you. But the cells firing in your brain are very much awake, sparking enough energy to produce the sometimes vivid and sometimes downright haunted dreams that take place during the rapid-eye-movement stage of your sleep. Why do some people have nightmares while others really spend their nights in bliss? Like sleep, dreams are mysterious phenomena.
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New York Mayor Calls for Restrictions on Sugary Soft Drinks Goodbye, Big Gulps. Mayor Michael Bloomberg is calling for a ban on large-sized sugary beverages from most dining establishments. The new measure would prohibit New York City delis, movie theaters, sidewalk food carts, stadiums and restaurants from selling cups or bottles containing more than 16 fluid ounces of sweetened drinks, the New York Times reports. The ban does not include diet sodas, fruit juices, alcohol, or dairy-based drinks like milkshakes, but applies to energy drinks and pre-sweetened iced tea.
by Tariq Malik, SPACE.com Managing Editor | March 23, 2011 06:05pm ET Credit: The Viking Project/NASAReaching Mars is a hard and unforgiving endeavor, with little room for error. More than two-thirds of the 40-odd missions launched toward Mars have been lost due to failed components, rocket glitches or grievous errors that sent probes crashing into the martian surface or missing the planet altogether. With NASA getting set to land its next Mars rover Curiosity on Aug. 5, here’s a look at the best – and worst – Mars landings of all time. Best (And Worst) Mars Landings Ever | Red Planet & Mars Exploration | Mars Missions, Mars Probes
NASA flooded with 400 ideas to explore Mars - Technology & science - Space - Space.com Scientists have responded in a big way to NASA's call to help reformulate its Mars robotic exploration strategy, submitting about 400 ideas and Red Planet mission concepts to the space agency. NASA's Mars program suffered deep cuts in President Barack Obama's proposed 2013 budget, which was released in February. In response, NASA pulled out of the European-led ExoMars mission, which aims to launch an orbiter and a rover to the Red Planet in 2016 and 2018, respectively. The agency also undertook a broad rethink of its Mars strategy, to figure out how best to explore the Red Planet with reduced funding. NASA asked the scientific community for ideas and was expecting to get about 200 proposals at its recent Concepts and Approaches for Mars Exploration Workshop in Houston, officials said.
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