The liquid outer shell of the Sun rotates much faster at the equator than it does at the poles, a phenomenon known as differential rotation. It takes about 25 earth days at the equator and roughly 35 at the poles for the Sun to complete a 360 degree rotation. What you...
Last year, during the basecamp phase of ZetaTrek we tackled an unsolved problem - of whether the Fibonacci sequence contains an infinite number of primes. I wrote down a short summary of my experience in a newspaper column, before moving on to other ideas. A few months...
[This is a drawing of Jupiter by a 19th century artist-astronomer named Trouvelot - and you can find more works in this NYPL gallery.] The two black dots in the upper hemisphere make this look like a face, no doubt - but the string of beads that might pass off for...
...a proposed $300 million transatlantic cable is being built just to shave 0.006 seconds off transaction times between New York City and London..[Wired] The global stock exchange network today resembles a giant particle collider in the making, a planetary swarm of...
The monkey is reaching for the moon in the water Until death overtakes him he'll never give up.If he'd let go the branch and disappear in the deep pool,The whole world would shine with dazzling pureness. - Hakuin Ekaku (1685-1768, Japan)The zen poem above speaks of a...
In 1831, August Ferdinand Möbius devised a notorious function to classify all integers in three different boxes. This new visualization hopes to reveal some patterns in μ(n), called Möbius' Mu. A first observation about this graph: all perfect numbers that exist lie...
With this post I am mainly trying out a software toolchain between GAP/gnuplot/PARI-GP/GitHub and Posterous. However, the interesting plot above is explained below. In number theory, the sum of divisors has been studied since antiquity. Ancient Greeks defined a perfect...
What is this? An expedition to conquer the greatest unsolved problem in mathematics - the Riemann Hypothesis. By amateurs across the world. A new online workshop by Kali & the Kaleidoscope. Starts Began Oct. 19, 2011. Registration details are at the bottom. The First...
Summary: An expedition to conquer the greatest unsolved problem in mathematics - the Riemann Hypothesis. By amateurs across the world. A new online workshop by Kali & the Kaleidoscope. Starts Oct. 19, 2011. Detail: Those who have attended or know about my last two...
