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The history of the barometer (and how it works) - Asaf Bar-Yosef

The history of the barometer (and how it works) - Asaf Bar-Yosef | TEDtalks | Scoop.it
A barometer is an instrument that measures air pressure, allowing weather forecasters and scientists to better predict extreme weather events. Despite its incredible usefulness, inventing the barometer was no walk in the park. Asaf Bar-Yosef describes the series of scientists and events that contributed to the birth of the barometer -- and explains how it actually works.
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Κρυμμένα θαύματα του φυσικού κόσμου

Κρυμμένα θαύματα του φυσικού κόσμου | TEDtalks | Scoop.it
Visit the post for more.
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What makes tattoos permanent? - Claudia Aguirre

What makes tattoos permanent? - Claudia Aguirre | TEDtalks | Scoop.it
The earliest recorded tattoo was found on a Peruvian mummy in 6,000 BC. That’s some old ink! And considering humans lose roughly 40,000 skin cells per hour, how do these markings last? Claudia Aguirre details the different methods, machines and macrophages (you’ll see) that go into making tattoos stand the test of time.
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Which country does the most good for the world?

Which country does the most good for the world? | TEDtalks | Scoop.it
It's an unexpected side effect of globalization: problems that once would have stayed local—say, a bank lending out too much money—now have consequences worldwide. But still, countries operate independently, as if alone on the planet. Policy advisor Simon Anholt has dreamed up an unusual scale to get governments thinking outwardly: The Good Country Index. In a riveting and funny talk, he answers the question, "Which country does the most good?" The answer may surprise you (especially if you live in the US or China).
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A guide to the energy of the Earth - Joshua M. Sneideman

A guide to the energy of the Earth - Joshua M. Sneideman | TEDtalks | Scoop.it
Energy is neither created nor destroyed — and yet the global demand for it continues to increase. But where does energy come from, and where does it go? Joshua M. Sneideman examines the many ways in which energy cycles through our planet, from the sun to our food chain to electricity and beyond.
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A-rhythm-etic. The math behind the beats - Clayton Cameron

A-rhythm-etic. The math behind the beats - Clayton Cameron | TEDtalks | Scoop.it
Ready to dance in your seat? Drummer Clayton Cameron breaks down different genres of music—from R&B to Latin to pop—by their beats. A talk that proves hip hop and jazz aren't cooler than math—they simply rely on it.
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Music and creativity in Ancient Greece - Tim Hansen

Music and creativity in Ancient Greece - Tim Hansen | TEDtalks | Scoop.it
You
think you love music? You have nothing on the Ancient Greek obsession.
Every aspect of Greek life was punctuated by song: history, poetry,
theater, sports and even astronomy.
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Chris Downey: Design with the blind in mind | Video on TED.com

What would a city designed for the blind be like?
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Dan Ariely: Are we in control of our own decisions? | Video on TED.com

Behavioral economist Dan Ariely, the author of Predictably Irrational, uses classic visual illusions and his own counterintuitive (and sometimes shocking) research findings to show how we're not as rational as we think when we make decisions.
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Architectural inspiration | TED Playlists | TED

Architectural inspiration | TED Playlists | TED | TEDtalks | Scoop.it
Master architects share their vision for buildings that inflate, float, twist and glitter, while artfully addressing the challenges faced by their residents, their cities and the planet.
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There’s no dishonor in having a disability - Steven Claunch

There’s no dishonor in having a disability - Steven Claunch | TEDtalks | Scoop.it
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Why do competitors open their stores next to one another? - Jac de Haan

Why do competitors open their stores next to one another? - Jac de Haan | TEDtalks | Scoop.it

Why are all the gas stations, cafes and restaurants in one crowded spot? As two competitive cousins vie for ice-cream-selling domination on one small beach, discover how game theory and the Nash Equilibrium inform these retail hotspots.

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The science of macaroni salad: What's in a molecule? - Josh Kurz

View full lesson: http://ed.ted.com/lessons/the-science-of-macaroni-salad-what-s-in-a-molecule-josh-kurz What do macaroni salad and gasoline have in common? ...
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Αυτισμός - Τι ξέρουμε (και τι δεν ξέρουμε ακόμη)

Αυτισμός - Τι ξέρουμε (και τι δεν ξέρουμε ακόμη) | TEDtalks | Scoop.it
Σε αυτή την τεκμηριωμένη ομιλία η γενετίστρια Γουέντι Τσάνγκ μοιράζεται τι γνωρίζουμε για τη διαταραχή του φάσματος αυτισμού - για παράδειγμα ότι ο αυτισμός έχει πολλαπλές, ίσως αλληλένδετες αιτίες...
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How quantum mechanics explains global warming - Lieven Scheire

How quantum mechanics explains global warming - Lieven Scheire | TEDtalks | Scoop.it
You’ve probably heard that carbon dioxide is warming the Earth. But how exactly is it doing it? Lieven Scheire uses a rainbow, a light bulb and a bit of quantum physics to describe the science behind global warming.
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How heavy is air? - Dan Quinn

How heavy is air? - Dan Quinn | TEDtalks | Scoop.it
Too often we think of air as empty space — but compared to a vacuum, air is actually pretty heavy. So, just how heavy is it? And if it’s so heavy, why doesn’t it crush us? Dan Quinn describes the fundamentals of air pressure and explains how it affects our bodies, the weather and the universe at large.
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A virtual choir 2,000 voices strong

A virtual choir 2,000 voices strong | TEDtalks | Scoop.it
In a moving and madly viral video last year, composer Eric Whitacre led a virtual choir of singers from around the world. He talks through the creative challenges of making music powered by YouTube, and unveils the first 2 minutes of his new work, "Sleep," with a video choir of 2,052. The full piece premiered a few weeks later (yes, on YouTube!).
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Transforming Education Through the Arts

Howard Gardner probes the panelists on their own education in the arts and their experiences working in today's schools. What's unique about quality education in the arts?
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Beatboxing 101 - BEAT NYC

Beatboxing 101 - BEAT NYC | TEDtalks | Scoop.it
There’s no need for instruments to make music; you can use the greatest instrument of all, your own body.
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The chemistry of cookies - Stephanie Warren

View full lesson: http://ed.ted.com/lessons/the-chemistry-of-cookies-stephanie-warren You stick cookie dough into an oven, and magically, you get a plate of ...
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Arthur Benjamin: The magic of Fibonacci numbers | Video on TED.com

Math is logical, functional and just ... awesome. Mathemagician Arthur Benjamin explores hidden properties of that weird and wonderful set of numbers, the Fibonacci series. (And reminds you that mathematics can be inspiring, too!
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Elizabeth Loftus: The fiction of memory | Video on TED.com

Psychologist Elizabeth Loftus studies memories. More precisely, she studies false memories, when people either remember things that didn't happen or remember them differently from the way they really were.
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Alexa Meade: Your body is my canvas | Video on TED.com

Alexa Meade takes an innovative approach to art. Not for her a life of sketching and stretching canvases. Instead, she selects a topic and then paints it--literally.
sofilab's insight:

so simple, so impressive, so innovative

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Ο Φίλιπ Ζιμπάρντο συνταγογραφεί μιαν υγιή αντί-ληψη του χρόνου. | Video on TED.com

Philip Zimbardo was the leader of the notorious 1971 Stanford Prison Experiment -- and an expert witness at Abu Ghraib. His book The Lucifer Effect explores the nature of evil; now, in his new work, he studies the nature of heroism.

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Defining cyberwarfare...in hopes of preventing it - Daniel Garrie

Defining cyberwarfare...in hopes of preventing it - Daniel Garrie | TEDtalks | Scoop.it

Can you imagine a future where wars are fought not with bombs and bullets but computer viruses and pacemaker shutdowns? Cyberware is unique in that it is not covered by existing legal framework and it often inspires more questions than we are yet capable of answering. Daniel Garrie ponders some of the practical and ethical dilemmas that may pop up as we progress towards our uncertain future.

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