Cel mai „fulgerat” loc de pe Terra – TED-Ed

Lake Maracaibo is the stormiest place on the planet. Thunderstorms rage above this massive body of water for up to 200 days of the year, with each ear-splitting event lasting for several hours. But why? Graeme Anderson lists the factors that create Lake Maracaibo’s seemingly ever-lasting storms.

Lesson by Graeme Anderson, animation by D. Lee Peffer II.

 

Care este originea Rusiei – TED Ed

View full lesson: http://ed.ted.com/lessons/where-did-r…

Russia is the biggest country in the world, spanning one-eighth of the earth’s landmass. But where did it all begin? Alex Gendler explores the epic history of the Kievan Rus, where characters ranging from Viking raiders and Western crusaders to Byzantine missionaries and Mongol hordes all played a role to create a unique civilization standing at the crossroads of culture and geography.

Lesson by Alex Gendler, animation by Draško Ivezić.

Cum se vindeca ranile… TED Ed update

Our skin is the largest organ in our bodies, with a surface area of about 20 square feet in adults. When we are cut or wounded, our skin begins to repair itself through a complex, well-coordinated process. Sarthak Sinha takes us past the epidermis and into the dermis to investigate this regenerative response.

Lesson by Sarthak Sinha, animation by Karrot Animation.

Nas de câine :) – TED-Ed Update

You may have heard the expression that dogs ‘see with their noses.’ But these creature’s amazing nasal architecture actually reveals a whole world beyond what we can see. Alexandra Horowitz illustrates how the dog’s nose can smell the past, the future and even things that can’t be seen at all.

Lesson by Alexandra Horowitz, animation by Província Studio.

Tehnologia in buzunar sau cum stie celularul tau locatia ta… – TEDEd

GPS location apps on a smartphone can be very handy when mapping a travel route or finding nearby events. But how does your smartphone know where you are? Wilton L. Virgo explains how the answer lies 12,000 miles over your head, in an orbiting satellite that keeps time to the beat of an atomic clock powered by quantum mechanics.

Lesson by Wilton L. Virgo, animation by Nick Hilditch.

De ce vedem cateodata punctulete si liniute…TED-Ed update

View full lesson: http://ed.ted.com/lessons/what-are-th…

Sometimes, against a uniform, bright background such as a clear sky or a blank computer screen, you might see things floating across your field of vision. What are these moving objects, and how are you seeing them? Michael Mauser explains the visual phenomenon that is floaters.

Lesson by Michael Mauser, animation by Reflective Films.

Cum lucreaza ficatul…? TED-Ed Update

There’s a factory inside you that weighs about 1.4 kilograms and runs for 24 hours a day. It’s your liver: the heaviest organ in your body, which simultaneously acts as a storehouse, a manufacturing hub, and a processing plant. Emma Bryce gives a crash course on the liver and how it helps keep us alive.

Lesson by Emma Bryce, animation by Andrew Zimbelman for The Foreign Correspondents’ Club.

De ce antibioticele nu mai fac față? TED-Ed

View full lesson: http://ed.ted.com/lessons/how-antibio…

Right now, you are inhabited by trillions of microorganisms. Many of these bacteria are harmless (or even helpful!), but there are a few strains of ‘super bacteria’ that are pretty nasty – and they’re growing resistant to our antibiotics. Why is this happening? Kevin Wu details the evolution of this problem that presents a big challenge for the future of medicine.

Lesson by Kevin Wu, animation by Brett Underhill.

 

Cum se misca oceanele – TEDEd Lesson

In cateva cuvinte se explica ce sta in spatele curentilor maritimi si oceanici

ocean

The constant motion of our oceans represents a vast and complicated system involving many different drivers. Sasha Wright explains the physics behind one of those drivers – the concentration gradient – and illustrates how our oceans are continually engaging in a universal struggle for space.

Lesson by Sasha Wright, animation by Andrew Foerster.

Mitul folosirii a 10 % din creier

Two thirds of the population believes a myth that has been propagated for over a century: that we use only 10% of our brains. Hardly! Our neuron-dense brains have evolved to use the least amount of energy while carrying the most information possible – a feat that requires the entire brain. Richard E. Cytowic debunks this neurological myth (and explains why we aren’t so good at multitasking).

Lesson by Richard E. Cytowic, animation by TOGETHER.

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http://psychology.about.com/od/biopsychology/a/10-percent-of-brain-myth.htm