Wednesday, 17 February 2010
Saturday, 30 January 2010
Sunday, 4 October 2009
Tuesday, 29 September 2009
Powerful Ideas: Spray-On Solar Cells

So far, they have developed solar-cell prototypes that can convert 1 percent of the sunlight that hits the cell into electricity.
"If we get to 10 percent, then there's real potential for commercialization," said Korgel, who co-founded the Calif.-based company Innovalight, which is currently producing silicon-based inks. "If it works, I think you could see it being used in three to five years."
link
www.livescience.com
Labels: science
Saturday, 8 August 2009
Ten Mysteries of You
1.Blushing
Even Darwin struggled to explain why we would evolve a response that lets others know that we have cheated or lied
2.Laughter
The discovery that laughter is more often produced at banal comments than jokes prompts the question, why did it evolve?
3.Pubic hair
Scent radiator, warmth provider, or chafe protection? The answer to why humans have clumps of hair in private places is still open for debate
4.Teenagers
Even our closest relatives, the great apes, move smoothly from their juvenile to adult life phases – so why do humans spend an agonising decade skulking around in hoodies?
5.Dreams
Today, most researchers reject Freud's belief that dreams are expressions of our unconscious desires – but if that's the case, what are they for?
6.Altruism
People still debate whether humans are genuinely altruistic by nature, but if we are, most agree it doesn't make evolutionary sense
7.Art
Sexual display, learning tool or form of social glue? Art still refuses to be pinned down
8.Superstition
Many of us have superstitions – odd, reassuring habits that make no rational sense – but there may be an underlying reason for such behaviour
9.Kissing
The urge to kiss is not brought about by genes, so why do we find it so pleasurable to share saliva?
10.Nose-picking
Many of us do it, but eating bogeys offers little nutritional reward – could there be a health reason for the unappealing habit?
link
www.newscientist.com
Even Darwin struggled to explain why we would evolve a response that lets others know that we have cheated or lied
2.Laughter
The discovery that laughter is more often produced at banal comments than jokes prompts the question, why did it evolve?
3.Pubic hair
Scent radiator, warmth provider, or chafe protection? The answer to why humans have clumps of hair in private places is still open for debate
4.Teenagers
Even our closest relatives, the great apes, move smoothly from their juvenile to adult life phases – so why do humans spend an agonising decade skulking around in hoodies?
5.Dreams
Today, most researchers reject Freud's belief that dreams are expressions of our unconscious desires – but if that's the case, what are they for?
6.Altruism
People still debate whether humans are genuinely altruistic by nature, but if we are, most agree it doesn't make evolutionary sense
7.Art
Sexual display, learning tool or form of social glue? Art still refuses to be pinned down
8.Superstition
Many of us have superstitions – odd, reassuring habits that make no rational sense – but there may be an underlying reason for such behaviour
9.Kissing
The urge to kiss is not brought about by genes, so why do we find it so pleasurable to share saliva?
10.Nose-picking
Many of us do it, but eating bogeys offers little nutritional reward – could there be a health reason for the unappealing habit?
link
www.newscientist.com
Labels: interesting, science
Friday, 5 June 2009
Monday, 25 May 2009
Monday, 27 April 2009
Friday, 5 December 2008
Your Memory Is Bigger and Better Than Scientists Expected
Results showed that the volunteers were right almost 90-percent of the time.
“Pay attention to the visual details. Pay attention where you put your keys, where you park your car,” advises Oliva.
link
www.sciencentral.com


