Wednesday, March 30, 2011

Meal Snap Photographs Your Food and Automatically Estimates the Calories You Ate


Meal Snap is a neat app that photographs your food, uploads the picture, and then replies with a calorie count in just a few seconds. And it works surprisingly well.
This seems like the sort of thing that wouldn't actually work, but it's surprisingly impressive. I took pictures of some leftover steamed veggies in my fridge and it gave me a pretty accurate calorie count. While I can't be sure, I'd imagine these counts are looked up by actual people as you get a faster response if you name your food rather than simply photograph it. That said, I took a picture of some brownies I made last night and, although Meal Snap's horde of calorie counters thought it was chocolate cake, the calorie count was pretty much spot on. It even gave me a calorie count for a bag of dog bones. It's fast, it works, and is excellent if you're trying to count calories but hate the tedious task of looking up every food you ate after every meal.

Meal Snap is available on the iTunes App Store, right now, for $3.

Tuesday, March 29, 2011

Nanoparticle Rubber Stamps Could Help Heal Wounds

You know the UV-ink rubber stamps that night clubs like to stick on your skin? Well, a novel silver nanotech variant of the idea could actually help heal your skin wounds more quickly.

Silverware became popular centuries ago partly because it was a precious metal and thus a status symbol, but also because the health qualities of silver have been known since Roman times. Back then wealthy folks even gave their kids a silver spoon to suck on to ward-off the plague (hence the saying). Modern science understands how silver has anti-bacterial qualities, but the trick in delivering silver accurately into a wound nowadays is getting the dosage right since silver is toxic in high concentrations. That's what research at the University of Wisconsin-Madison is tackling, with a novel delivery approach for silver nanoparticles.

The research team has perfected a way of delivering silver nanoparticles onto skin in a layer just a few molecules thick—thereby forming an excellent barrier but not over-dosing the region and killing skin cells—by borrowing a technique that's long been used to apply ink in molecule-thick layers: Rubber stamping. The polyelectrolyte multilayer coating, mixed with micrometer-sized beads of silver nanoparticles (which the team found was the most efficient way to ensure delivery) was "assembled" on a rubber stamp and was then placed on wounds from cadaver skin to test its efficiency.

Small doses of bacteria (common skin bacteria staphylococcus epidermidis and pseudomonas aeruginosa—both of which can run rampant and cause infections) were applied to the area. After roughly 12 hours 99.999% of the bacteria were killed and the bacteria-defeating effect was still reliable up to around 48 hours.

To check that the treatment didn't actually interfere with normal wound-healing, the scientists tried it on diabetic mice and are currently investigating wound healing on mice and pigs (particularly interesting as pig skin is analogous to human skin in many ways).

So in the future, a trip to ER to stitch a wound could result in patients wearing a rubber stamp healing treatment, too.

Monday, March 28, 2011

How Does the Mona Lisa Look Without Mona Lisa?

Recognize this 77 x 54-centimeter oil on canvas painting? Believe it or not, it's perhaps the best-known Leonardo da Vinci painting this side of The Last Supper.

Yes, it's the Mona Lisa without Mona Lisa, as interpreted by Adobe Photoshop CS5.

Artist Mike Ruiz got a high resolution photograph of Leonardo's art, scanned it in Photoshop, selected the smily girl, and used content-aware fill in Photoshop CS5, a tool that borders in witchcraft—so much that it may make sandwiches for you (almost).
Adobe's tool interpreted the surroundings and generated the complete background in place of the mysterious woman, who apparently was Jesus or his daughter or his third cousin or whatever. One of those. After clicking the OK button, Ruiz sent the result to China, where artists used the image to actually create the oil painting in the same style as da Vinci himself.

Sunday, March 27, 2011

Finally, Bacon Cologne!

No longer do you have to dribble bacon down your chin to get a hint of pig on your throat—perfumers Fargginay have invented bacon cologne which has a mix of 11 essential oils in both the Gold (citrus) and Classic (spicy maple) variants, which cost $36 each.

I like Fargginay's little accent over the "o." Really classy.

Saturday, March 26, 2011

In Tunisia, act of one fruit vendor unleashes wave of revolution through Arab world








On the evening before Mohammed Bouazizi lit a fire that would burn across the Arab world, the young fruit vendor told his mother that the oranges, dates and apples he had to sell were the best he’d ever seen. “With this fruit,” he said, “I can buy some gifts for you. Tomorrow will be a good day.”

For years, Bouazizi had told his mother stories of corruption at the fruit market, where vendors gathered under a cluster of ficus trees on the main street of this scruffy town, not far from Tunisia’s Mediterranean beaches. Arrogant police officers treated the market as their personal picnic grounds, taking bagfuls of fruit without so much as a nod toward payment. The cops took visible pleasure in subjecting the vendors to one indignity after another — fining them, confiscating their scales, even ordering them to carry their stolen fruit to the cops’ cars.

Before dawn on Friday, Dec. 17, as Bouazizi pulled his cart along the narrow, rutted stone road toward the market, two police officers blocked his path and tried to take his fruit. Bouazizi’s uncle rushed to help his 26-year-old nephew, persuading the officers to let the rugged-looking young man complete his one-mile trek.

The uncle visited the chief of police and asked him for help. The chief called in a policewoman who had stopped Bouazizi, Fedya Hamdi, and told her to let the boy work.

Hamdi, outraged by the appeal to her boss, returned to the market. She took a basket of Bouazizi’s apples and put it in her car. Then she started loading a second basket. This time, according to Alladin Badri, who worked the next cart over, Bouazizi tried to block the officer.

“She pushed Mohammed and hit him with her baton,” Badri said.

Hamdi reached for Bouazizi’s scale, and again he tried to stop her.

Hamdi and two other officers pushed Bouazizi to the ground and grabbed the scale. Then she slapped Bouazizi in the face in front of about 50 witnesses.

Bouazizi wept with shame.

“Why are you doing this to me?” he cried, according to vendors and customers who were there. “I’m a simple person, and I just want to work.”

Revolutions are explosions of frustration and rage that build over time, sometimes over decades. Although their political roots are deep, it is often a single spark that ignites them — an assassination, perhaps, or one selfless act of defiance.

In Tunisia, an unusually cosmopolitan Arab country with a high rate of college attendance, residents watched for 23 years as Zine el-Abidine Ben Ali’s dictatorship became a grating daily insult. From Tunis — the whitewashed, low-rise capital with a tropical, colonial feel — to the endless stretches of olive and date trees in the sparsely populated countryside, the complaints were uniform: It had gotten so you couldn’t get a job without some connection to Ben Ali’s family or party. The secret police kept close tabs on ordinary Tunisians. And the uniformed police took to demanding graft with brazen abandon.

Still, the popular rebellion that started here and spread like a virus to Egypt, Libya and the Persian Gulf states, and now to Yemen and Syria, was anything but preordained. The contagion, carried by ordinary people rather than politicians or armies, hits each country in a different and uncontrollable way, but with common characteristics — Friday demonstrations, Facebook connections, and alliances across religious, class and tribal lines. This wave of change happened because aging dictators grew cocky and distant from the people they once courted, because the new social media that the secret police didn’t quite understand reached a critical mass of people, and because, in a rural town where respect is more valued than money, Mohammed Bouazizi was humiliated in front of his friends.

After the slap, Bouazizi went to city hall and demanded to see an official. No, a clerk replied. Go home. Forget about it.

Bouazizi returned to the market and told his fellow vendors he would let the world know how unfairly they were being treated, how corrupt the system was.

He would set himself ablaze.

“We thought he was just talking,” said Hassan Tili, another vendor.

A short while later, the vendors heard shouts from a couple of blocks away. Without another word to anyone, Bouazizi had positioned himself in front of the municipal building, poured paint thinner over his body and lit himself aflame.

The fire burned and burned. People ran inside and grabbed a fire extinguisher, but it was empty. They called for police, but no one came. Only an hour and a half after Bouazizi lit the match did an ambulance arrive.

Manoubya Bouazizi said her son’s decision “was spontaneous, from the humiliation.” Her clear blue eyes welled as her husband placed at her feet a small clay pot filled with a few white-hot pieces of charcoal, their only defense against a cold, raw, rain-swept day. The Bouazizi family has no money, no car, no electricity, but it was not poverty that made her son sacrifice himself, she said. It was his quest for dignity.

Ben Ali visited Mohammed Bouazizi in the hospital, along with a camera crew. The president made a show of handing Manoubya a check for 10,000 dinars (about $14,000). But the mother said Ben Ali’s staffers took the check back after the cameramen were escorted from the room. “I never got any of it,” she said.

Three weeks after he set himself on fire, Bouazizi died in the burn unit.

In early January, the policewoman was arrested, but it was too late. The story had spread, and three months later, a revolution that sprouted in a small village in Tunisia and flowered in Egypt has morphed into a contagion that threatens regimes in Bahrain and Yemen, has enveloped Libya in civil war, and is unsettling even the region’s more placid monarchies, such as Saudi Arabia and Jordan.

By Marc Fisher

Friday, March 25, 2011

Scientists Grow an Eye in a Petri Dish

A Japanese research team has successfully grown a "rudimentary" mouse eye in a petri dish using stem cells. This has many implications for future research and curing blindness. Below is a time-lapse photo


of the stem sells spontaneously organizing into an "optic cup"—the precursor to an eye. Now they need to grow a little pair of Ray Bans in a petri dish and we'll have the coolest mouse in the world.

Thursday, March 24, 2011

Ghostly Lightpainting Uses a Cross-Sectioned Video of an Executed Convict’s Body as Light Source


Lightpainting requires a certain sort of skill to get the sort of marvellous results we've seen previously, but Croix Gagnon and Frank Schott went the whole nine yards and played an animation of a cross-sectioned human body on a laptop, which they then whizzed through the air and took long-exposure photos of.

1,871 slices of a convicted murderer's body who was executed in 1993 and given to science were used to create the animation (which you can see below—and actually use yourself!), Gagnon and Schott employed someone to move it about while they shot photos of it. You can see one of the photos below actually shows the laptop with animation frozen on-screen.

Amazing work, I'm sure you'll agree. If you like the prints enough to spend $700 on one, you can buy them from 12:31, with the proceeds being donated to

.