Get flash to fully experience Pearltrees
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+ 1 2, 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 designers everywhere . Interestingly, it also neatly matches the relationship between kilometers and miles.
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 .
One Bright Idea If you're going to do just one thing for the planet, make it the switch to compact fluorescent light bulbs (CFLs). Although they cost several times more upfront than regular <a href= http://www.livescience.com/environment/070315_efficient_bulbs.html target=new>incandescent light bulbs</a>, they also last about 10 times longer, which means that for every CFL you screw in, you'll be saving eight incandescent light bulbs from landfill purgatory. Plus, you'll save some serious cash in the long run. Because CFLs use 75 percent less energy, swapping one incandescent bulb for a CFL reduces carbon dioxide by 500 pounds a year; replacing 17 has the equivalent effect of taking one car off the road for a year.
Great Minds <p>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.</p> Albert Einstein
Doomsday fears <p> 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 <a href="http://www.livescience.com/7937-truth-2012-doomsday-hype.html">one supposedly impending apocalypse</a> or another in 2012, despite all the <a href="http://www.livescience.com/7926-10-failed-doomsday-predictions.html">failed doomsday predictions</a> over the years.</p><p> Here are 10 apocalyptic scenarios that have raised fears about the end of civilization, in alphabetical order.</p> Aliens
Countdown: 7 Medical Myths Even Doctors Believe | Untrue Medical Myths & Common Medical MisconceptionsCommon Medical Misconceptions <br> 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. <br><br> In 2007, a study published in the <em>British Medical Journal </em><em>looked </em>into several <a href="http://www.livescience.com/7107-urban-legends-start-persist.html">common misconceptions</a>, 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. <br><br> "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.
What Science Can't Explain Science is powerful, but it cannot explain everything.
Top 10 Mysteries of the Mind <p>Much of what we don't understand about being human is simply in our heads. The brain is a befuddling organ, as are the very questions of life and death, consciousness, sleep, and much more.
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.
TruthSerum Feb 25 2013 at 12:30 PM christina Jan 08 2013 at 9:54 PM Zlatoděj Josef Prof. Jan 08 2013 at 9:16 AM Voynich Manuscript Jan 01 2013 at 3:36 PM
Unknown Mar 14 2013 at 3:02 PM Bob from Sherwood Forest (Yes, that one) Jan 06 2013 at 3:32 PM wavering Jan 05 2013 at 6:35 AM Crystion Jan 02 2013 at 5:57 PM Confuseus Dec 06 2012 at 8:44 PM Enter your name Nov 29 2012 at 4:09 AM
<img src="http://timenewsfeed.files.wordpress.com/2012/05/michael-bloomberg.jpg?w=480&h=320&crop=1" alt="Michael Bloomberg" title="Michael Bloomberg"/> Goodbye, Big Gulps. Mayor Michael Bloomberg is calling for a ban on large-sized sugary beverages from most dining establishments.
Target: The Red Planet Reaching 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.<br><br> 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.
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.