Why programmers work at night

"I think it boils down to three things: the maker’s schedule, the sleepy brain and bright computer screens.

"Paul Graham wrote about the maker’s schedule (...) a schedule for those of us who produce stuff. Working on large abstract systems involves fitting the whole thing into your mind – somebody once likened this to constructing a house out of expensive crystal glassand as soon as someone distracts you, it all comes barreling down and shatters into a thousand pieces. (...) This is why programmers are so annoyed when you distract them.

The sleepy brain (...) Why then do we perform our most mentally complex work work when the brain wants to sleep and we do simpler tasks when our brain is at its sharpest and brightest?

Because being tired makes us better coders.

Similar to the ballmer peak, being tired can make us focus better simply because when your brain is tired it has to focus! There isn’t enough left-over brainpower to afford losing concentration.

Bright computer screens (...) This one is pretty simple. Keep staring at a bright source of light in the evening and your sleep cycle gets delayed. You forget to be tired until 3am. Then you wake up at 11am and when the evening rolls around you simply aren’t tired because hey, you’ve only been up since 11am! "


More @ Swizec.com

Senseg Brings Texture to Touch-Screens

From CNET TV



More @ http://senseg.com/

"Senseg turns touch screens into Feel Screens. With Senseg touch screens come alive with textures, contours and edges that users can feel. Using Senseg technology, makers of tablet computers, smart phones, and any touch interface device can deliver revolutionary user experiences with high fidelity tactile sensations."

LED Lights Make Augmented Vision a Reality | Elemental LEDucation

Okay, this is just freaky. We know LED lights are versatile enough to be used for practically anything, but LED contact lenses? Really?! Yes, as it turns out, really. University of Washington researchers have figured out how to implant semitransparent red and blue LED lights in contact lenses, for the purpose of receiving and displaying data in sharp visual images and video. This means wearers will literally be able to watch TV or view photos that are projected directly onto their eyeballs.

More @ Elemental LEDucation

Filling without drilling: Pain-free way of tackling dental decay reverses acid damage and re-builds teeth

Tooth decay begins when acid produced by bacteria in plaque dissolves the mineral in the teeth, causing microscopic holes or 'pores' to form. As the decay process progresses these micro-pores increase in size and number. Eventually the damaged tooth may have to be drilled and filled to prevent toothache, or even removed.

(...)

"This may sound too good to be true, but we are essentially helping acid-damaged teeth to regenerate themselves. It is a totally natural non-surgical repair process and is entirely pain-free too," said Professor Jennifer Kirkham, from the University of Leeds Dental Institute, who has led development of the new technique.

The 'magic' fluid was designed by researchers in the University of Leeds' School of Chemistry, led by Dr Amalia Aggeli. It contains a peptide known as P 11-4 that -- under certain conditions -- will assemble together into fibres. In practice, this means that when applied to the tooth, the fluid seeps into the micro-pores caused by acid attack and then spontaneously forms a gel. This gel then provides a 'scaffold' or framework that attracts calcium and regenerates the tooth's mineral from within, providing a natural and pain-free repair.

The technique was recently taken out of the laboratory and tested on a small group of adults whose dentist had spotted the initial signs of tooth decay. The results from this small trial have shown that P 11-4 can indeed reverse the damage and regenerate the tooth tissue.

(...)

More @ Science Daily

People are biased against creative ideas, studies find

"How is it that people say they want creativity but in reality often reject it?" said Jack Goncalo, ILR School assistant professor of organizational behavior and co-author of research to be published in an upcoming issue of the journal Psychological Science. The paper reports on two 2010 experiments at the University of Pennsylvania involving more than 200 people.

The studies' findings include:
- Creative ideas are by definition novel, and novelty can trigger feelings of uncertainty that make most people uncomfortable.

- People dismiss creative ideas in favor of ideas that are purely practical -- tried and true.

- Objective evidence shoring up the validity of a creative proposal does not motivate people to accept it.

Anti-creativity bias is so subtle that people are unaware of it, which can interfere with their ability to recognize a creative idea.

(...)

To uncover bias against creativity, the researchers used a subtle technique to measure unconscious bias -- the kind to which people may not want to admit, such as racism. Results revealed that while people explicitly claimed to desire creative ideas, they actually associated creative ideas with negative words such as "vomit," "poison" and "agony."

More @ PhysOrg

People are biased against creative ideas, studies find

"How is it that people say they want creativity but in reality often reject it?" said Jack Goncalo, ILR School assistant professor of organizational behavior and co-author of research to be published in an upcoming issue of the journal Psychological Science. The paper reports on two 2010 experiments at the University of Pennsylvania involving more than 200 people.

The studies' findings include:
- Creative ideas are by definition novel, and novelty can trigger feelings of uncertainty that make most people uncomfortable.

- People dismiss creative ideas in favor of ideas that are purely practical -- tried and true.

- Objective evidence shoring up the validity of a creative proposal does not motivate people to accept it.

Anti-creativity bias is so subtle that people are unaware of it, which can interfere with their ability to recognize a creative idea.

(...)

To uncover bias against creativity, the researchers used a subtle technique to measure unconscious bias -- the kind to which people may not want to admit, such as racism. Results revealed that while people explicitly claimed to desire creative ideas, they actually associated creative ideas with negative words such as "vomit," "poison" and "agony."

More @ PhysOrg

Gallery: The Bionic Human Circa 2011

DARPA's robotic arm is legendary. It's the result of years of work and a whopping $100 million, but it just might be worth it: This arm mimics the natural motion of the arm, elbow, wrist, and hand with 27 different movements (including rotation, bending, and extension) that's at the top of the field. But what's really notable about this particular arm is how it's controlled: DARPA wants to implant a small chip in the brain that would sense and measure the firing of neurons, then convey those commands to the arm, all near-instantaneously.

Many More @ Popular Science

Better than Superman? X-Ray Microscope Enables Nanovision | X-ray Diffraction Microscope

Forget X-ray glasses. A new X-ray microscope can see details a small as a billionth of a meter — without even using a lens.

Instead, the new microscope uses a powerful computer program to convert patterns from X-rays bouncing off materials into images of objects as small as a one nanometer across, on the scale of a few atoms.

Unlike Superman's X-ray vision, which allows him to look through walls to see the bad guys beyond, the new technology could be used to look at different elements inside a material, or to image viruses, cells and tissue in great detail, said study researcher Oleg Shpyrko, a physicist at the University of California, San Diego. But one of the most important applications is in nano-sized engineering, Shpyrko said.

More @ LiveScience

World’s first ‘printed’ aircraft, which could revolutionise the economics of aircraft design

"Engineers at the University of Southampton have designed and flown the world’s first ‘printed’ aircraft, which could revolutionise the economics of aircraft design.

The electric-powered aircraft, with a 2-metres wingspan, has a top speed of nearly 100 miles per hour, but when in cruise mode is almost silent. The aircraft is also equipped with a miniature autopilot developed by Dr Matt Bennett, one of the members of the team.

No fasteners were used and all equipment was attached using ‘snap fit’ techniques so that the entire aircraft can be put together without tools in minutes."

More @ Science Debate

Stem cells grow fully functional new teeth

Oral photographs (upper) and micro-CT (lower) images showing occlusion of natural (left) and bioengineered teeth (right). Image credit: PLoS ONE 6(7): e21531. doi:10.13


Researchers from Japan recently published a paper in PLoS One describing their successful growth and transplantation of new teeth created from the stem cells of mice.

In order to create these teeth, Takashi Tsuji from Tokyo University of Science and his team removed two different stem cells from the molar teeth of mice. They took these stem cells to grow in the laboratory. In order to control how the teeth grew, as far as shape and length, the stem cells were placed in a mold to grow.

Once the cells grew into full tooth units, the researchers then transplanted them into the jaws of one-month-old mice. These transplanted teeth fused with the jaw bones and tissues on an average of about 40 days. The researchers were also able to detect nerve fibers growing in the new teeth.

The mice that received the transplanted teeth were able to eat and chew normally without any complications.

More @ MedicalXpress.com

Biomarker for autism discovered

Biomarker for autism discovered

"Siblings of people with autism show a similar pattern of brain activity to that seen in people with autism when looking at emotional facial expressions. Researchers at the University of Cambridge identified the reduced activity in a part of the brain associated with empathy and argue it may be a 'biomarker' for a familial risk of autism."

More @ ScienceDaily

The Man Who Was Cured of HIV and What It Means for a Cure for AIDS

The Man Who Was Cured of HIV and What It Means for a Cure for AIDS

"After chemo, the leukemia came back. Brown’s last chance was a stem-cell transplant from a bone-marrow donor. Hutter had an idea. He knew little about HIV, but he remembered that people with a certain natural genetic mutation are very resistant to the virus. The mutation, called delta 32, disables CCR5, a receptor on the surface of immune-system cells that, in the vast majority of cases, is HIV’s path inside. People with copies from both parents are almost completely protected from getting HIV, and they are relatively common in northern Europe—among Germans, the rate is about one in a hundred. Hutter resolved to see if he could use a stem-cell donor with the delta-32 mutation to cure not just Brown’s leukemia but also his HIV."

More @ New York Magazine

RC car runs on soda can rings

RC car runs on soda can rings

dAlH2Orean H2 R/C Car powered by Aluminium from Aleix Llovet on Vimeo.

A pair of Spanish engineers have recently unveiled the dAlH2Orean (see what they did there?), a R/C car that runs on aluminum. Dropping a few soda can tabs into a tank of sodium hydroxide produces enough hydrogen to power the little speedster for 40 minutes – at almost 20mph.

More @ Engadget

Solar power goes viral: Modified virus improves solar-cell efficiency by one-third

Solar power goes viral: Modified virus improves solar-cell efficiency by one-third

In a solar cell, sunlight hits a light-harvesting material, causing it to release electrons that can be harnessed to produce an electric current. The new MIT research, published online this week in the journal Nature Nanotechnology, is based on findings that carbon nanotubes — microscopic, hollow cylinders of pure carbon — can enhance the efficiency of electron collection from a solar cell's surface.

Previous attempts to use the nanotubes, however, had been thwarted by two problems. First, the making of carbon nanotubes generally produces a mix of two types, some of which act as semiconductors (sometimes allowing an electric current to flow, sometimes not) or metals (which act like wires, allowing current to flow easily). The new research, for the first time, showed that the effects of these two types tend to be different, because the semiconducting nanotubes can enhance the performance of solar cells, but the metallic ones have the opposite effect. Second, nanotubes tend to clump together, which reduces their effectiveness.

And that’s where viruses come to the rescue. Graduate students Xiangnan Dang and Hyunjung Yi — working with Angela Belcher, the W. M. Keck Professor of Energy, and several other researchers — found that a genetically engineered version of a virus called M13, which normally infects bacteria, can be used to control the arrangement of the nanotubes on a surface, keeping the tubes separate so they can’t short out the circuits, and keeping the tubes apart so they don’t clump.

(...) In their tests, adding the virus-built structures enhanced the power conversion efficiency to 10.6 percent from 8 percent — almost a one-third improvement.

More @ PhysOrg.com

Weird Al - Lady Gaga Won't Allow his new Parody

THE GAGA SAGA @ AL'S BLOG

UPDATE: Turns out this was not Lady Gaga's decision. Her manager was speaking "for her", out of order. She has since sent her approval in to Al.



"was really hoping that this blog entry would be all about me announcing the release date of my new album.

Sadly, it’s not.

In a metaphorical nutshell, here’s what happened.

I wrote and recorded what I thought was going to be the first single off of my new album: a parody of “Born This Way” by Lady Gaga called “Perform This Way.” But after hearing it, Lady Gaga decided not to give me permission to release the song, so… it won’t be coming out commercially anytime in the near future. Sorry."

More @ AL'S BLOG:

Magnetic Effect of Light May Lead to Better Solar Power

Magnetic Effect of Light May Lead to Better Solar Power

A dramatic and surprising magnetic effect of light discovered by University of Michigan researchers could lead to solar power without traditional semiconductor-based solar cells.

The researchers found a way to make an "optical battery," said Stephen Rand, a professor in the departments of Electrical Engineering and Computer Science, Physics and Applied Physics.

In the process, they overturned a century-old tenet of physics (...)

Light has electric and magnetic components. Until now, scientists thought the effects of the magnetic field were so weak that they could be ignored. Rand and his colleagues found that at the right intensity, when light is traveling through a material that does not conduct electricity, the light field can generate magnetic effects that are 100 million times stronger than previously expected. Under these circumstances, the magnetic effects develop strength equivalent to a strong electric effect.

More @ Michigan Today

Cave in moon:Base station for astronauts?

Cave in moon:Base station for astronauts?

"New Delhi: Scientists at the Indian Space Research Organization have discovered a giant underground chamber on the moon, which they feel could be used as a base by astronauts on future manned missions to moon.

An analysis by an instrument on Chandrayaan-1 revealed a 1.7-km long and 120-metre wide cave near the moon's equator that is in the Oceanus Procellarum area of the moon that could be a suitable 'base station' for future human missions."

More @ Silicon India

Immaterials: Light painting WiFi

Immaterials: Light painting WiFi

The city is filled with an invisible landscape of networks that is becoming an interwoven part of daily life. WiFi networks and increasingly sophisticated mobile phones are starting to influence how urban environments are experienced and understood. We want to explore and reveal what the immaterial terrain of WiFi looks like and how it relates to the city.


Immaterials: Light painting WiFi from Timo on Vimeo.


More @ YOUrban

New transistors: An alternative to silicon and better than graphene

New transistors: An alternative to silicon and better than graphene

Smaller and more energy-efficient electronic chips could be made using molybdenite, a material developed in Switzerland

		IMAGE: This is a digital model showing how molybdenite can be integrated into a transistor.

Smaller and more energy-efficient electronic chips could be made using molybdenite. In an article appearing online January 30 in the journal Nature Nanotechnology, EPFL's Laboratory of Nanoscale Electronics and Structures (LANES) publishes a study showing that this material has distinct advantages over traditional silicon or graphene for use in electronics applications.

A discovery made at EPFL could play an important role in electronics, allowing us to make transistors that are smaller and more energy efficient. Research carried out in the Laboratory of Nanoscale Electronics and Structures (LANES) has revealed that molybdenite, or MoS2, is a very effective semiconductor. This mineral, which is abundant in nature, is often used as an element in steel alloys or as an additive in lubricants. But it had not yet been extensively studied for use in electronics

More @ New transistors: An alternative to silicon and better than graphene

Gorilla Glass has a new competitor called Dragontrail

As smartphones move to ever larger displays they become an important part of the strength component of the overall handset. At the same time users don’t want them to scratch easily or crack if dropped. The best solution at the moment seems to be Gorilla Glass which is used by a range of manufacturers, and has recently even been scaled up to work with tablets and LCD TVs.

But Gorilla Glass isn’t going to be the only option for much longer. Japanses company Asahi has unveiled its own super-strong glass solution called Dragontrail. Although there have been no direct comparisons between the two strong glass products, you can tell from the tests in the video that Dragontrail has some serious strength on offer."

More @ Geek.com:

Drunk scientists pour wine on superconductors and make an incredible discovery

Drunk scientists pour wine on superconductors and make an incredible discovery

Superconductors behave like most metals; they conduct electricity. They do so, however, with a twist. All metal has some resistance to the flow of electricity. But when the temperature drops, superconductors get less and less resistant (and therefore more conductive). When they reach very low temperatures, their resistance drops to zero.

Yoshihiko Takano and other researchers at the National Institute for Materials Science in Japan were in the process of creating a certain kind of superconductor by putting a compound in hot water and soaking it for hours. They also soaked the compound in a mixture of water and ethanol. It appears the process was going well, because the scientists decided to have a little party. The party included sake, whisky, various wines, shochu, and beer. At a certain point, the researchers decided to try soaking the compound in the many, many liquors they had on hand and seeing how they compared to the more conventional soaking liquids.

When they tested the resulting materials for superconductivity, they found that the ones soaked in commercial booze came out ahead. About 15 percent of the material became a superconductor for the water mixed with ethanol, and less for the pure water. By comparison, Shochu jacked up conductivity by 23 percent and red wine managed to supercharge over 62 percent of the material. The scientists were pleased, if bemused with their results.

(...)

More @ io9

Horizon MiniPak personal fuel cell charger hits shelves for $100

Horizon MiniPak personal fuel cell charger hits shelves for $100

Designed for charging portable electronics on the go, the MiniPak has two refillable cartridges, each with the juice equivalent of around 1,000 AA batteries. The MiniPak -- which uses Hydrogen to produce electricity -- isn't the first portable fuel cell, but it's certainly the cheapest.

More @ Engadget [Video]