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‘Blue for creativity, red for attention’

Wednesday, February 18, 2009

What colour most improves brain performance and receptivity to advertising, red or blue? This has been a subject of debate for long. Now, a new study says that both can — it depends on the nature of the message.

Researchers at the University of British Columbia have found while red is the most effective at enhancing a person’s attention to detail, blue is best at boosting their ability to think creatively.

‘Previous research linked blue and red to enhanced cognitive performance, but disagreed on which provides the greatest boost. It really depends on the nature of the task,’ lead researcher Juliet Zhu said.

For their study, the researchers tracked more than 600 participants’ performance on six cognitive tasks that required either detail-orientation or creativity. Most experiments were conducted on computers with a screen — red, blue or white.

Red boosted performance on detail-oriented tasks such as memory retrieval and proofreading by as much as 31 per cent compared to blue; conversely for creative task, brainstorming, blue environmental cues prompted participants to produce twice as many creative outputs as when under the red condition.

‘These variances are caused by different unconscious motivations that red and blue activate,’ said Zhu, also noting that colour influences cognition and behaviour through learned associations.

‘Thanks to stop signs, emergency vehicles and teachers’ red pens, we associate red with danger, mistakes and caution. The avoidance motivation, or heightened state, that red activates makes us vigilant and thus helps us perform tasks where careful attention is required to produce a right or wrong answer,’ Zhu said.

Conversely, blue encourages people to think outside the box and be creative, said Zhu. ‘Through associations with the sky, the ocean and water, most people associate blue with openness, peace and tranquility The benign cues make people feel safe about being creative and exploratory.’

PTI

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New York dog show

Long Coat Chihuahua, Joi, left, and Smooth Coat Chihuahua, Tarra, of New Braunfels, Tx., relax backstage after competing during the 133rd annual Westminster Kennel Club dog show Tuesday, Feb. 10, 2009 at Madison Square Garden in New York.




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Dark Side of the Sun

Well, no, there's no actual dark side of a luminous ball of burning gas, but there is an effective dark side, as in, the side of the sun we can't see at any given time.
Scientists aren't content to get just half of the picture, so they've launched the STEREO (Solar Terrestrial Relations Observatories) mission, a pair of NASA spacecraft that will orbit the sun simultaneously to provide a complete view of all sides of the star at once.


"Then there will be no place to hide and we can see the entire sun for the first time," STEREO project scientist Michael Kaiser of NASA's Goddard Space Flight Center.

The perfect spherical view will come on Feb. 6, 2011. Right now the satellites, which were launched in October 2006, are about 90 degrees apart, which allows a picture of about 270 degrees of the sun — the fullest view yet.

"The who goal of all of this is to try to get a better handle to try to predict solar storms, which cause cell phone disturbances, and disruptions to communications and power." Kaiser said. "We'd like to be able to predict these things as far in advance as possible to give us a longer warning time."

Solar storms are magnetic disruptions on the sun that release violent sprays of charged particles into space. These storms can produce magnificent displays of the Northern Lights. But some past storms have also cost airlines and satellite communications industries millions of dollars, and have led to large scale power blackouts (including one across the entire province of Quebec, Canada). Being able to reliably forecast these tempests in advance could make a huge difference in preventing disturbances on Earth.

Predicting solar weather is also important for the future of manned spaceflight. If astronauts are exposed to the intense radiation from solar storms while traveling beyond the protective magnetic field of the Earth, they could suffer serious harm. Even astronauts close to home who venture out for a spacewalk during a storm are put in danger.

"For future missions going to the moon and Mars, that's very important," Kaiser said. "Some of these solar storms can be very intense. If the astronauts were completely exposed to one of these storms the radiation could be high."

The STEREO mission also aims to improve our basic scientific understanding of the dynamics within the sun, which could shed light on the workings of stars in general.

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Blender 3D Design Online Course

This course updates and replaces Three-Dimensional Modeling, Animation and Rendering Using Blender 3D Software (2006), previously on Tufts OCW. In this course we will explore basic mesh modeling, applying textures and materials to 3-D objects, lighting, animation and rendering. This course should provide a good basis for further independent study in architectural, engineering, and theatrical modeling and game design. This course is self-paced, meaning that you can pick and choose the Learning Units, Video Tutorials or PDF tutorials as you see fit. The sequence of Learning Units are a suggested path of learning Blender but you are welcome to use this material in any way that suits your purposes.

link

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double headed Animal

Tuesday, February 17, 2009

double-headed red-eared slider turtle "Takara," named after a boy who found it at a park nearby and meaning "treasure" in Japanese, is shown in Moriyama, western Japan May 27, 2008. Researchers say it is very rare for such a turtle to be found alive and added that it is highly unlikely that the cause was due to pollution but rather a natural phenomenon

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My first post


My first post

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