Arun kumar

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Psychology of smiling: can you tell a fake smile from a genuine one?

Psychologist Richard Wiseman has devised a photographic test to check people’s empathy. Do you pass the test?<p>A smile is the universal welcome, the writer Max Eastman once remarked. But how sure can we be that a person’s smile is genuine? The answer is the empathy test, created by psychologist …


Can our DNA turn us into criminals?

New research has found a genetic link between sex offenders in the same family – but the findings are much more complicated than that, says Neil Levy<p>Do we inherit a criminal tendency? Are some of the most reviled offences not the fault of their perpetrators, but the unlucky fruit of their genes? If …

No one is clamoring for a wearable that you can put on your face

This may be the year of the smartwatch after all.<p>A new chart from Statista suggests that wrist wearables such as fitness trackers and smartwatches will largely drive the growing wearable market. Of the 45.7 million wearables expected to ship this year, a recent report from IDC shows that 90 percent …

Wearable Tech

New Study Finds No Link Between Gaming And Sexist Attitudes

A few days ago a German longitudinal study was published that explored the connection between gaming and sexist attitudes. The results broadly show that playing videogames doesn’t make people sexist.<p>The study was based around cultivation theory, which posits that long-term exposure to media content …


Scientists issue call for urgent controls on e-cigarette sales to children

Survey shows one in five teenagers in north-west England have bought or tried e-cigarettes and found a strong link to to binge drinking<p>Scientists have called for urgent controls on the promotion and sale of e-cigarettes to children after finding high rates of usage among secondary school pupils in …

Public Health

Mad Cow Research Hints At Ways To Halt Alzheimer's, Parkinson's

Alzheimer's, Parkinson's and amyotrophic lateral sclerosis ravage the brain in very different ways. But they have at least one thing in common, says Corinne Lasmezas, a neuroscientist and professor at Scripps Research Institute, in Jupiter, Fla. Each spreads from brain cell to brain cell like an …


Why Do We Solve For 'X'?

<i>Part 2 of the</i> TED Radio Hour <i>episode</i> Solve for X<p><b>About Terry Moore's TED Talk</b><p>Polymath Terry Moore wondered why "X" is the universal unknown in algebra. He dove into the history of numbers to come up with an unexpected answer.<p><b>About Terry Moore</b><p>Terry Moore directs the Radius Foundation in New York, …

TED Talks

How our brains create 'mental time travel' - Futurity

Neuroscientists call high fidelity memories "mental time travel." Experiments reveal new information about the brain during these moments.

Time Travel

This Tiny Sculpture Is Perched Atop A Human Hair

Fine art at the microscale<p>The world’s smallest human figure, by artist Jonty Hurwitz, is only as tall as a sheet of paper is thick--just 100 microns. To "sculpt" it, he had nanoscientist Stefan Hengsbach direct long-wavelength light through a microscope onto a photosensitive polymer. This produced …


Sexing up the human pheromone story: How a corporation started a scientific myth

Popular belief has it that human ‘sex pheromones’ exist and are well-established by the scientific community. But all is not as it seems, as Tristram Wyatt explains<p>This Valentine’s Day, like every year, there was a rash of stories in the news about sexy smells and pheromones. You could be forgiven …


Half of human Aids came from gorillas

Scientists identified pre-cursor of HIV virus in gorillas in Cameroon<p>Two of four strains of the virus that can cause AIDS come from gorillas in southwestern Cameroon, an international team of scientists reported in studies published Monday in the United States.<p>The new information means that …