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segunda-feira, 7 de outubro de 2013

James Flynn: Why our IQ levels are higher than our grandparents' | Video on TED.com





It’s called the “Flynn effect” — the fact that each generation scores higher on an IQ test than the generation before it. Are we actually getting smarter, or just thinking differently? In this fast-paced spin through the cognitive history of the 20th century, moral philosopher James Flynn suggests that changes in the way we think have had surprising (and not always positive) consequences.



via Pocket http://www.ted.com/talks/james_flynn_why_our_iq_levels_are_higher_than_our_grandparents.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+TEDTalks_video+%28TEDTalks+Main+%28SD%29+-+Site%29




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Why do the French tolerate such high taxes?





THE French are steeling themselves for yet more tax increases when the finance minister, Pierre Moscovici, unveils the 2014 budget on September 25th. The government is planning an extra €3 billion ($4 billion) of taxes next year, which will push up the overall tax take in the economy to 46.



via Pocket http://www.economist.com/blogs/economist-explains/2013/09/economist-explains-13




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How was the AIDS epidemic reversed?









via Pocket http://www.economist.com/blogs/economist-explains/2013/09/economist-explains-16#b10g03t20w13




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Stuart Firestein: The pursuit of ignorance | Video on TED.com





What does real scientific work look like? As neuroscientist Stuart Firestein jokes: It looks a lot less like the scientific method and a lot more like “farting around … in the dark.” In this witty talk, Firestein gets to the heart of science as it is really practiced and suggests that we should value what we don’t know — or “high-quality ignorance” — just as much as what we know.



via Pocket http://www.ted.com/talks/stuart_firestein_the_pursuit_of_ignorance.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+TEDTalks_video+%28TEDTalks+Main+%28SD%29+-+Site%29




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Malcolm Gladwell: The unheard story of David and Goliath | Video on TED.com





It’s a classic underdog tale: David, a young shepherd armed only with a sling, beats Goliath, the mighty warrior. The story has transcended its biblical origins to become a common shorthand for unlikely victory. But, asks Malcolm Gladwell, is that really what the David and Goliath story is about?



via Pocket http://www.ted.com/talks/malcolm_gladwell_the_unheard_story_of_david_and_goliath.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+TEDTalks_video+%28TEDTalks+Main+%28SD%29+-+Site%29




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Jason Pontin: Can technology solve our big problems? | Video on TED.com





In 1969, Buzz Aldrin’s historical step onto the moon leapt mankind into an era of technological possibility. The awesome power of technology was to be used to solve all of our big problems. Fast forward to present day, and what’s happened? Are mobile apps all we have to show for ourselves? Journalist Jason Pontin looks closely at the challenges we face to using technology effectively … for problems that really matter.



via Pocket http://www.ted.com/talks/jason_pontin_can_technology_solve_our_big_problems.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+TEDTalks_video+%28TEDTalks+Main+%28SD%29+-+Site%29




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