Electricity is our friend | Sebastian Fleiter | TEDxCannes

Translator: Georges Pattinson Reviewer: Remco Mollema What happens when electricity is gone? Now, you all seat here in a theater. It is a space which is arranged. There is light. There is sound. There is everything that suits you to be comfortable to watch the show. Probably most of you have a mobile phone in […]

How does a jellyfish sting? – Neosha S Kashef

You’re swimming in the ocean when something brushes your leg. When the tingling sets in, you realize you’ve been stung by a jellyfish. How do these beautiful, gelatinous creatures pack such a painful punch? Jellyfish are soft because they are 95% water and are mostly made of a translucent gel-like substance called mesoglea. With such […]

How do fish make electricity? – Eleanor Nelsen

In 1800, the explorer Alexander von Humboldt witnessed a swarm of electric eels leap out of the water to defend themselves against oncoming horses. Most people thought the story so unusual that Humboldt made it up. But fish using electricity is more common than you might think; and yes, electric eels are a type of […]

Beethoven, the Heavy Metal of the Early 19th Century! | Nicolas Ellis | [email protected]

Translator: Midori T Reviewer: Queenie Lee (Video starts) (Video ends) That was Cellos on Fire, a metal band in which I used to play keyboard when I was in high school and [inaudible] even during a few years in college. And I remember, you see, how happy I look. I remember how much I loved […]

Why is NASA sending a spacecraft to a metal world? – Linda T. Elkins-Tanton

Somewhere between the orbits of Mars and Jupiter, about 500 million kilometers away from Earth, floats a metallic orb the size of Massachusetts. That’s no moon…it’s 16 Psyche, one of the most massive asteroids in the solar system. And it is the asteroid our droids are looking for. We humans have managed to send robotic […]

Jeff Bezos: The electricity metaphor

When you think about resilience and technology it’s actually much easier. You’re going to see some other speakers today, I already know, who are going to talk about breaking-bones stuff, and, of course, with technology it never is. So it’s very easy, comparatively speaking, to be resilient. I think that, if we look at what […]

Metal that breathes | Doris Kim Sung

Translator: Joseph Geni Reviewer: Morton Bast I was one of those kids that, every time I got in the car, I basically had to roll down the window. It was usually too hot, too stuffy or just too smelly, and my father would not let us use the air conditioner. He said that it would […]

How to squeeze electricity out of crystals – Ashwini Bharathula

This is a crystal of sugar. If you press on it, it will actually generate its own electricity. How can this simple crystal act like a tiny power source? Because sugar is piezoelectric. Piezoelectric materials turn mechanical stress, like pressure, sound waves, and other vibrations into electricity and vice versa. This odd phenomenon was first […]

Eric Giler demos wireless electricity

Early visions of wireless power actually were thought of by Nikola Tesla basically about 100 years ago. The thought that you wouldn’t want to transfer electric power wirelessly, no one ever thought of that. They thought, “Who would use it if you didn’t?” And so, in fact, he actually set about doing a variety of […]

Less than perfect robots | Guy Hoffman | TEDxJaffa

Translator: Madeleine Aronson Reviewer: Camille Martínez My job is to design, build and study robots that communicate with people. But this story doesn’t start with robotics at all, it starts with animation. When I first saw Pixar’s “Luxo Jr.,” I was amazed by how much emotion they could put into something as trivial as a […]