mathematics
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enAirSign Takes to the Sky to Celebrate Pi Day
http://www.maximumpc.com/airsign_takes_sky_celebrate_pi_day_2014
<!--paging_filter--><h3><img src="/files/u69/pi_sky.jpg" alt="Pi in the Sky" title="Pi in the Sky" width="228" height="171" style="float: right;" />Happy Pi Day, math fanatics!</h3>
<p>For many employed Joes and Janes, Friday signals the end of the work week and is reason enough to celebrate. However, if you're looking for an additional reason to get your groove on heading into the weekend, go out and <strong>celebrate Pi Day, otherwise known as March 14th, or 3.14</strong> (get it?). Some even began celebrating yesterday, such as AirSign, an aerial advertising company, which was forced by Mother Nature to get things going early.</p>
<p>AirSign partnered with artist ISHKY to write Pi in the sky, but they didn't stop at 3.14. They continued writing out hundreds of numbers of the mathematical constant using five aircraft. <a href="http://news.cnet.com/8301-10797_3-57620339-235/pi-day-celebrations-kick-off-with-a-pi-in-the-sky/" target="_blank">According to <em>CNET</em></a>, it was part of a public art project.</p>
<p>"We partnered with artist ISHKY, who specializes in grand-scale projects. ISHKY’s 'Pi In The Sky' explores the boundaries of scale, public space, permanence, and the relationship between Earth and the physical universe," AirSign stated in a <a href="http://www.airsign.com/blog/tonight-skywriting-piinthesky-sxsw/" target="_blank">blog post</a>. "Our team of five synchronized aircraft equipped with dot-matrix skywriting technology follows a flight pattern that forms the first few hundred characters of pi’s infinite sequence at SXSW. Each number will measure more than a quarter-mile in height."</p>
<p>Pi is the ratio of a circle's circumference to its diameter that's often abbreviated to 3.14, though its decimal representation goes on forever. Lest you feel silly for filling up with suds in recognition of Pi Day, it's actually a real thing -- the House of Representatives passed a bill in 2009 officially recognizing March 14 as National Pi Day.</p>
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http://www.maximumpc.com/airsign_takes_sky_celebrate_pi_day_2014#commentsairsignmathmathematicspi dayNewsFri, 14 Mar 2014 15:50:14 +0000Paul Lilly27443 at http://www.maximumpc.comLargest Prime Number Discovered is 17.4 Million Digits Long
http://www.maximumpc.com/article/news/largest_prime_number_discovered_174_million_digits_long
<!--paging_filter--><h3><img src="/files/u69/math.jpg" alt="Math Equation" title="Math" width="228" height="171" style="float: right;" />It took five years to discover a prime number larger than the last record holder.</h3>
<p>Mathematically speaking, there is an infinite allotment of prime numbers, it's just that finding new ones requires some heavy duty number crunching. Curtis Cooper, a mathematician at the University of Central Missouri, has found three of them through the <a href="http://www.maximumpc.com/tags/gimps"><strong>Great Internet Mersenne Prime Search</strong></a> (GIMPS), a distributed computing project like <a href="http://www.maximumpc.com/forums/viewforum.php?f=32&sid=e751952f6dacda44953818a8af536e6d">Folding@Home</a> and SETI, but with the sole goal of discovering Mersenne prime numbers. Cooper's latest find is 17,425,170 digits long.</p>
<p>That demolishes the previous one discovered in 2008, which was 'only' 12,978,189 digits long. Cooper's figure is 2 raised to the 57,885,161 power minus 1, an extraordinarily long figure that's only divisible by 1 and itself.</p>
<p>"It's analogous to climbing Mt. Everest," George Woltman, the computer scientist who created GIMPS, <a href="http://www.scientificamerican.com/article.cfm?id=largest-prime-number-disc" target="_blank">told <em>Scientific American</em></a>. "People enjoy it for the challenge of the discovery of finding something that's never been known before."</p>
<p>What's special about Cooper's newest find is that it's a Mersenne prime number, which takes the form of 2 raised to the power of a prime number minus 1. Including this one, only 48 examples have been discovered in the past 350 years.</p>
<p>Cooper's find doesn't really do anything to advance mathematics in any meaningful way, but it does give him some serious bragging rights among fellow researchers, along with a $3,000 prize from GIMPS.</p>
<p>Image Credit: <a href="http://www.freepik.com/index.php?goto=41&idd=22771&url=aHR0cDovL3d3dy5zeGMuaHUvcGhvdG8vNjE0Njgy" target="_blank">Freepik.com</a></p>
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http://www.maximumpc.com/article/news/largest_prime_number_discovered_174_million_digits_long#commentscurtis coopergimpsgreat internet mersenne prime searchmathematicsprime numberNewsWed, 06 Feb 2013 16:55:31 +0000Paul Lilly24974 at http://www.maximumpc.com