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👁Can you solve the vampire hunter riddle? - Dan Finkel

🗣Subtitle: Farsi | English | Turkish
👣You’ve stealthily descended into the darkness of a vampire cave, setting a sequence of mirrors as you go. When the sun reaches the right angle in the sky, a beam of light will ricochet along the mirrors, strike a diffuser, and illuminate the great chamber where the vampires sleep. Can you place the diffuser correctly and flood the lair with sunlight? Dan Finkel shows how.
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👁Making sense of irrational numbers - Ganesh Pai

🗣Subtitle: Farsi | English | Turkish
👣
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👁Why noise is bad for your health -- and what you can do about it
🗣Subtitle: Farsi | English | Turkish

👣Silence is a rare commodity these days. There's traffic, construction, air-conditioning, your neighbor's lawnmower ... and all this unwanted sound can have a surprising impact on your health, says noise researcher Mathias Basner. Discover the science behind how noise affects your health and sleep -- and how you can get more of the benefits of the sound of silence.
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#TEDMED_2018 #sound #health #Senses #TEDMED #science #sleep #hearing #medical_research

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👁The next big thing is coming from the Bronx, again
🗣Subtitle: Farsi | English

👣\"The hood is good,\" says Jon Gray of the Bronx, New York-based creative collective Ghetto Gastro. Working at the intersection of food, design and art, Gray and his team honor the soul and history of their community while applying their unbridled creativity and expansive imagination to unexpected, otherworldly collaborations. Learn more about how they're creating and investing in their home borough -- bringing the Bronx to the world and vice versa.
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#TED2019 #food #creativity #collaboration #culture #entrepreneur #community #art #design

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👁What are the universal human rights? - Benedetta Berti

🗣Subtitle: Farsi | English | Turkish
👣
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👁The Romans flooded the Colosseum for sea battles - Janelle Peters

🗣Subtitle: Farsi | English
👣It's an increasingly common sight in Starting in 80 CE, residents of Rome and visitors from across the Roman Empire would fill the stands of the Colosseum to see gladiators duel, animals fight and chariots race around the arena. And for the grand finale, water poured into the arena basin, submerging the stage for the greatest spectacle of all: staged naval battles. Janelle Peters details the history of these mock maritime encounters.
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👁A multimedia theatrical adventure
🗣Subtitle: Farsi | English | Turkish

👣Natasha Tsakos presents part of her one-woman, multimedia show, \"Upwake.\" As the character Zero, she blends dream and reality with an inventive virtual world projected around her in 3D animation and electric sound.
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#TED2009 #media #performance #performance_art #storytelling #theater #animation

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👁Why jobs of the future won't feel like work
🗣Subtitle: Farsi | English | Turkish

👣We've all heard that robots are going to take our jobs -- but what can we do about it? Innovation expert David Lee says that we should start designing jobs that unlock our hidden talents and passions -- the things we spend our weekends doing -- to keep us relevant in the age of robotics. \"Start asking people what problems they're inspired to solve and what talents they want to bring to work,\" Lee says. \"When you invite people to be more, they can amaze us with how much more they can be.\"
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#TED@UPS #business #creativity #innovation #robots #future #technology #work

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👁The ferocious predatory dinosaurs of Cretaceous Sahara - Nizar Ibrahim

🗣Subtitle: Farsi | English | Turkish
👣In Cretaceous times (around 100 million years ago), North Africa was home to a huge river system and a bizarre menagerie of giant prehistoric predators -- including the Spinosaurus, a dinosaur even more fearsome than the Tyrannosaurus rex. Nizar Ibrahim uses paleontological and geological data to reconstruct this “River of Giants” in surprising detail.
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👁The infinite life of pi - Reynaldo Lopes

🗣Subtitle: Farsi | English | Turkish
👣The ratio of a circle's circumference to its diameter is always the same: 3.14159... and on and on (literally!) forever. This irrational number, pi, has an infinite number of digits, so we'll never figure out its exact value no matter how close we seem to get. Reynaldo Lopes explains pi's vast applications to the study of music, financial models, and even the density of the universe.
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👁5 transformational policies for a prosperous and sustainable world
🗣Subtitle: Farsi | English | Turkish

👣In a talk about how we can build a robust future without wrecking the planet, sustainability expert Johan Rockström debuts the Earth3 model -- a new methodology that combines the UN Sustainable Development Goals with the nine planetary boundaries, beyond which earth's vital systems could become unstable. Learn more about five transformational policies that could help us achieve inclusive and prosperous world development while keeping the earth stable and resilient.
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#We_the_Future #climate_change #Anthropocene #environment #global_development #global_issues #alternative_energy #energy #oil #sustainability

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👁Can you solve the jail break riddle? - Dan Finkel

🗣Subtitle: Farsi | English | Turkish
👣Your timing made you and your partner infamous bank robbers. Now, you need to use that timing to break out of jail. Your partner is about to flash you a signal, and exactly 45 seconds later the electric fence circuit will short out. Then you notice that your watch is broken, and all you have are two 1-minute fuses in your pocket. Can you time your escape and get free? Dan Finkel shows how.
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👁Why is being scared so fun? - Margee Kerr

🗣Subtitle: Farsi | English | Turkish
👣At this very moment, people are lining up somewhere to scare themselves, be it with a thrill-ride or a horror movie. In fact, in October of 2015 alone, about 28 million people visited a haunted house in the US. But you might wonder: What could possibly be fun about being scared? Margee Kerr examines the biology and psychology behind what makes fear so fun.
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👁How to make your writing suspenseful - Victoria Smith

🗣Subtitle: Farsi | English | Turkish
👣View full lesson:https://ed.ted.com/lessons/how-to-make-your-writing-suspenseful-victoria-smith
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👁The history of the barometer (and how it works) - Asaf Bar-Yosef

🗣Subtitle: Farsi | English
👣
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👁Want to help Africa? Do business here
🗣Subtitle: Farsi | English | Turkish

👣We know the negative images of Africa -- famine and disease, conflict and corruption. But, says Ngozi Okonjo-Iweala, there's another, less-told story happening in many African nations: one of reform, economic growth and business opportunity.
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#TED2007 #business #corruption #global_issues #investment #women #women_in_business

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👁How X-rays see through your skin - Ge Wang

🗣Subtitle: Farsi | English | Turkish
👣Originally discovered by accident, X-rays are now used about 100 million times a year in clinics around the world. How do these magic eyes work? Ge Wang details the history and mechanics of the X-ray machine and CT scanners.
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👁The hidden network that makes the internet possible - Sajan Saini

🗣Subtitle: Farsi | English | Turkish
👣In 2012, a team of researchers set a world record, transmitting 1 petabit of data— that’s 10,000 hours of high-def video— over a fifty-kilometer cable, in a second. This wasn’t just any cable. It was a souped-up version of fiber optics, the hidden network that links our planet and makes the internet possible. What is fiber optics and how does it work? Sajan Saini explores the vital technology.
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👁What a scrapyard in Ghana can teach us about innovation
🗣Subtitle: Farsi | English

👣In Agbogbloshie, a community in Accra, Ghana, people descend on a scrapyard to mine electronic waste for recyclable materials. Without formal training, these urban miners often teach themselves the workings of electronics by taking them apart and putting them together again. Designer and TED Fellow DK Osseo-Asare wondered: What would happen if we connected these self-taught techies with students and young professionals in STEAM fields? The result: a growing maker community where people engage in peer-to-peer, hands-on education, motivated by what they want to create. Learn more about how this African makerspace is pioneering a grassroots circular economy.
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#TEDGlobal_2017 #technology #invention #innovation #computers #creativity #Africa #product_design #collaboration #TED_Fellows

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👁Why do we itch? - Emma Bryce

🗣Subtitle: Farsi | English | Turkish
👣The average person experiences dozens of individual itches each day. We’ve all experienced the annoyance of an inconvenient itch — but have you ever pondered why we itch in the first place? Is there actually an evolutionary purpose to the itch, or is it simply there to annoy us? Emma Bryce digs deep into the skin to find out.
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