Google has just published an ebook to help people get started with the web -
http://www.20thingsilearned.com/
Wednesday, 24 November 2010
Saturday, 27 February 2010
Bloom Box
One of the most heavily funded projects in the Silicon Valley inspite of the recession- the bloom box clean energy solution is now already installed in Google and e-bay campuses. It is the size of a cardboard box and supplies 1KW of SILENT power.
Comprising layers of ceramics and nanocomposites(magic sauce). Dr. Sridhar was a member of faculty here at University of Arizona, Tucson.
Wednesday, 18 November 2009
Lovely typos
Better cowhouse
The temperature of a cowhouse is unnecessarily high for the cows. One cow sweats approx. one bucket a day, so there is much energy going to waist.
--from a random find
Friday, 23 October 2009
The pen is mightier than the sword, but not the superhero
A true tale from Freakonomics: a rogue economist explores the hidden side of everything (Steven Levitt and Stephen Dubner)
Kennedy Stetson, son of the famous Stetson hat company founder, saw a gang of Ku Klux Klansmen tie the family's black maid Flo to a tree and gang rape her for talking back to a white trolley driver who had short-changed her.
Historian Wyn Craig Wade would later write, in his book about the KKK called The Fiery Cross, that Kennedy was "the single most important factor in preventing a post-war revival of the Ku Klux Klan in the north."
Kennedy's plan was simple: he would join the Klan and bring it down from the inside. Within just a few weeks of membership, Kennedy had compiled all the secret passwords, secret language (I'm looking for Mr. Ayak (translation: are you a klansmen?)), and had figured out its corporate structure with proof that the KKK was a slick profit-making, very political organization.
With information comes power, and Kennedy began wielding it. He passed Klan information to the Assistant Attorney General of Georgia, a known anti-clan buster. He presented to the Governor of Georgia the evidence on which the Klan's corporate charter--registering the KKK as a non-profit, non-political organization--was revokable.
The only thing was, it didn't work.
Like a creeping weed that infests the garden by an intricate root system from the bottom up, the KKK was deeply entrenched in the business, politics and law enforcement of the day. It seemed hopeless.
Until Superman literally came to the rescue. In an a-ha moment worthy of Malcolm Gladwell's Blink, Stetson Kennedy wrote to the producers of The Adventures of Superman, a radio show broadcast at dinnertime to millions across the nation. Turns out that the show's producers were looking for new villains, having exhausted Hitler, Mussolini, and the like. Kennedy gladly handed over all the secret information he had gathered and the producers wrote four week's worth of programming.
Almost instantly, Klan members started seeing their kids making a mockery of the KKK's most intimate rituals and code words. Towels and pillowcases tied around their heads, running around looking for Mr. Ayak and shouting chants...
In short, Klansmen were humiliated.
Membership applications plummeted and the Klan was never the same again.
It's a good thing that the KKK never had any kryptonite.
Kennedy Stetson, son of the famous Stetson hat company founder, saw a gang of Ku Klux Klansmen tie the family's black maid Flo to a tree and gang rape her for talking back to a white trolley driver who had short-changed her.
Historian Wyn Craig Wade would later write, in his book about the KKK called The Fiery Cross, that Kennedy was "the single most important factor in preventing a post-war revival of the Ku Klux Klan in the north."
Kennedy's plan was simple: he would join the Klan and bring it down from the inside. Within just a few weeks of membership, Kennedy had compiled all the secret passwords, secret language (I'm looking for Mr. Ayak (translation: are you a klansmen?)), and had figured out its corporate structure with proof that the KKK was a slick profit-making, very political organization.
With information comes power, and Kennedy began wielding it. He passed Klan information to the Assistant Attorney General of Georgia, a known anti-clan buster. He presented to the Governor of Georgia the evidence on which the Klan's corporate charter--registering the KKK as a non-profit, non-political organization--was revokable.
The only thing was, it didn't work.
Like a creeping weed that infests the garden by an intricate root system from the bottom up, the KKK was deeply entrenched in the business, politics and law enforcement of the day. It seemed hopeless.
Until Superman literally came to the rescue. In an a-ha moment worthy of Malcolm Gladwell's Blink, Stetson Kennedy wrote to the producers of The Adventures of Superman, a radio show broadcast at dinnertime to millions across the nation. Turns out that the show's producers were looking for new villains, having exhausted Hitler, Mussolini, and the like. Kennedy gladly handed over all the secret information he had gathered and the producers wrote four week's worth of programming.
Almost instantly, Klan members started seeing their kids making a mockery of the KKK's most intimate rituals and code words. Towels and pillowcases tied around their heads, running around looking for Mr. Ayak and shouting chants...
In short, Klansmen were humiliated.
Membership applications plummeted and the Klan was never the same again.
It's a good thing that the KKK never had any kryptonite.
Tuesday, 20 October 2009
Chemical fingers
Can machine learning be enhanced by tactile experience, as in human learning? Well, why not put these chemical fingers on your robot and give it a learning task!
New Sensor Feels Fine
By Adrian Cho
ScienceNOW Daily News
8 June 2006
Engineers can give robots eyes and ears by equipping them with video cameras and microphones. But enduing robots with a sense of touch is far more difficult. Simple sensors can tell a machine whether it is in contact with something, but detectors that also sense texture tend either to be too complicated and delicate for commercial use or lack the spatial resolution needed to detect details dozens of micrometers across. Now, chemical engineers Vivek Maheshwari and Ravi Saraf of the University of Nebraska, Lincoln, have developed a relatively simple and sturdy sensor that can sense texture about as well as a human fingertip can.
The device is a film roughly 100 nanometers thick. Within it lie alternating layers of nanoparticles of gold and cadmium sulfide separated by films of polymer. The electrically charged gold nanoparticles repel each other, and because they don't touch, no current can flow along the film. However, if a voltage is applied from one side of the film to the other, electrons can pass from one layer of gold to the next by burrowing through the cadmium sulfide nanoparticles in between. When this happens, the cadmium sulfide nanoparticles emit light. The amount of current flowing and light produced increases dramatically as the various layers are squeezed together. Thus, when something textured presses into it, the electrified film will shine brightest where the object's bumps and bulges push in the farthest, creating a pattern of light that can be imaged with a digital camera.
Maheshwari and Saraf used the film to feel a penny and were able to resolve the tiny lettering on the coin. The detector can measure features as small as 40 micrometers cross and 5 micrometers tall--about as well as the human fingertip.
"There's something novel, something really good about this," says Richard Crowder, an electrical engineer at the University of Southampton, United Kingdom. "You put a film on your robotic finger, and you've got your signal." The challenge, he adds, is incorporating a camera into the fingertip. But Saraf says it should be possible to detect the current flowing through the film directly, obviating the camera.
Friday, 16 October 2009
Page design to direct the reader's eye
Visualization is a common theme in Novelvig. Here is a short but clear guidline for page design by Christine Sevilla.
Effective page design maps a viewer's route through information. When designing information, your objective is to lead the viewer's eye directly to your message. Readers of English read from left to right and from the top of the page to the bottom. (The typical page-scanning pattern actually follows a Z). This habit of left-to-right eye movement dominates most design decisions in the West and is the basis for most conventional graphic design of print publications.
Minipreneurship
Worth thinking about!
http://www.allbusiness.com/marketing-advertising/internet-marketing/3871396-1.html
MINIPRENEURS': a vast army of consumers turning entrepreneurs; including small and micro businesses, freelancers, side-businesses, weekend entrepreneurs, web-driven entrepreneurs, part-timers, free agents, cottage businesses, seniorpreneurs, co-creators, mompreneurs, pro-ams, solopreneurs, eBay traders, advertising-sponsored bloggers and so on.
http://www.allbusiness.com/marketing-advertising/internet-marketing/3871396-1.html
MINIPRENEURS': a vast army of consumers turning entrepreneurs; including small and micro businesses, freelancers, side-businesses, weekend entrepreneurs, web-driven entrepreneurs, part-timers, free agents, cottage businesses, seniorpreneurs, co-creators, mompreneurs, pro-ams, solopreneurs, eBay traders, advertising-sponsored bloggers and so on.
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