Posts Tagged ‘Purdue University’
source: Argonne National Laboratory
Cartoonist Rube Goldberg sketched ironic paeans to parsimony– cartoons depicting the simplest of things being done in the most elaborate and complicated of ways. His whimsy inspired Purdue University to hold an annual Rube Goldberg Contest, in which teams of college students from around the country compete “to design a machine that uses the most complex process to complete a simple task – put a stamp on an envelope, screw in a light bulb, make a cup of coffee – in 20 or more steps.”
New Scientist reports on this year’s meet:
Who ever said a machine should be efficient? The device in this video was deliberately over-engineered to water a plant in 244 steps, while illustrating a brief history of life and the universe in the meantime. Created by students at Purdue University in West Lafayette, Indiana, it sets a new world record for the most complex Rube Goldberg machine – a contraption designed to complete a simple task through a series of chain reactions.
The machine was unveiled in March at the National Rube Goldberg Machine Championships held at Purdue University. The competition, first held in 1949, challenges competitors to accomplish a simple task in under 2 minutes, using at least 20 steps.
Although this machine used the greatest number of steps, it encountered some problems during the contest so was disqualified. But the team tried it again afterwards and it worked – too late to compete in the championships but still valid as a world record entry. They should find out this week if Guinness World Records accepts their record-breaking feat.
As we savor the sheer silliness of it all, we might recall that The American Academy of Arts and Sciences, which was founded during the Revolutionary War, was chartered on this date in 1780.
Established by by John Adams, James Bowdoin, John Hancock, and other leaders who contributed prominently to the establishment of the new nation, its government, and its Constitution, the Academy’s purpose was (in the words of the Charter) “to cultivate every art and science which may tend to advance the interest, honour, dignity, and happiness of a free, independent, and virtuous people.”
Over the years, just about everyone a reader may have encountered in a U.S. History text has been a member: The original incorporators were later joined by Benjamin Franklin, George Washington, Thomas Jefferson, Charles Bulfinch, Alexander Hamilton, John Quincy Adams, and others. During the 19th century, the elected membership included Daniel Webster, Henry Wadsworth Longfellow, John J. Audubon, Louis Agassiz, Asa Gray, Ralph Waldo Emerson, and Alexander Graham Bell. In the early decades of the twentieth century, membership in the Academy continued to grow as other noted scholars, scientists, and statesmen were elected– including A. A. Michelson, Percival Lowell, Alexander Agassiz and, later, Charles Steinmetz, Charles Evans Hughes, Samuel Eliot Morison, Albert Einstein, Henry Lee Higginson, Woodrow Wilson, William Howard Taft, and Henry Cabot Lodge. (Current members are listed here.)
Today the Academy is (in its self-explanation) “an international learned society with a dual function: to elect to membership men and women of exceptional achievement, drawn from science, scholarship, business, public affairs, and the arts, and to conduct a varied program of projects and studies responsive to the needs and problems of society.”
The Minerva Seal (source)
First, from New Scientist:
An electromagnetic “black hole” that sucks in surrounding light has been built for the first time. The device, which works at microwave frequencies, may soon be extended to trap visible light, leading to an entirely new way of harvesting solar energy to generate electricity.
A theoretical design for a table-top black hole to trap light was proposed in a paper published earlier this year by Evgenii Narimanov and Alexander Kildishev of Purdue University in West Lafayette, Indiana. Their idea was to mimic the properties of a cosmological black hole, whose intense gravity bends the surrounding space-time, causing any nearby matter or radiation to follow the warped space-time and spiral inwards.
Narimanov and Kildishev reasoned that it should be possible to build a device that makes light curve inwards towards its centre in a similar way… Now Tie Jun Cui and Qiang Cheng at the Southeast University in Nanjing, China, have turned Narimanov and Kildishev’s theory into practice, and built a “black hole” for microwave frequencies…
More (including a cool video) at New Scientist.
Then, from Network World:
A 12 million digit prime number, the largest such number ever discovered, has landed a voluntary math research group a $100,000 prize from the Electronic Frontier Foundation (EFF).
The number, known as a Mersenne prime, is the 45th known Mersenne prime, written shorthand as 2 to the power of 43,112,609, minus 1 . A Mersenne number is a positive integer that is one less than a power of two, the group stated.
The computing project called the Great Internet Mersenne Prime Search (GIMPS) made the discovery on a computer at the University of California, Los Angeles (UCLA) Mathematics Department. Computing manager Edson Smith installed and maintained the GIMPS software at UCLA, and thousands of other volunteers also participated in the computation…
More at Network World.
(Readers may recall that (R)D reported last March on GIMP and the effort to find the next Mersenne Prime– at which point the estimation was that it might stretch to a mere 10 million digits. Clearly, GIMP’s over-achievement affirms its worthiness of the EFF award.)
As we channel Mr. Wizard, we might run a celebratory riff for Charles Edward Anderson “Chuck” Berry, born on this date in 1926– Hail, Hail, Rock and Roll!