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New York: America's MEGACITY

Adults Cities History World
The story of New York City, America's megalopolis.

Why do Koreans have two different ages?

Adults Society World
A Korean baby born on Dec. 31 turns two years old the next day. Here's why.

Grammar's great divide: The Oxford comma - TED-Ed

Adults Education Language
If you read "Bob, a DJ and a clown" on a guest list, are three people coming to the party, or only one? That depends on whether you're for or against the Oxford comma -- perhaps the most hotly contested punctuation mark of all time. When do we use one? Can it really be optional, or is there a universal rule? TED-Ed explores both sides of this comma conundrum.

This guy is mashing-up Drake and Tchaikovsky

Adults Creativity Music
Composer Steve Hackman is creating mash-ups, like Drake & Tchaikovsky or Radiohead & Brahms, so more people will learn to love classical music.

How misused modifiers can hurt your writing - Emma Bryce

Adults Education Language
Modifiers are words, phrases, and clauses that add information about other parts of a sentence-which is usually helpful. But when modifiers aren't linked clearly enough to the words they're actually referring to, they can create unintentional ambiguity. Emma Bryce navigates the sticky world of misplaced, dangling and squinting modifiers.

Why China is putting robots in nursing homes

Adults Technology World
China has more than 230 million senior citizens. To keep them company, it's encouraging nursing homes to buy companionship robots.

What makes a poem ... a poem? - Melissa Kovacs

Adults Art Creativity Language
What exactly makes a poem ... a poem? Poets themselves have struggled with this question, often using metaphors to approximate a definition. Is a poem a little machine? A firework? An echo? A dream? Melissa Kovacs shares three recognizable characteristics of most poetry.

The story of Replika, the AI app that becomes you

Adults Artificial Intelligence Creativity Software Engineering
Replika is a chatbot that creates a digital representation of you. It's strange and fascinating -- but the story behind it is even better.

Tiny Foods | Tiny Kitchen // 60 Second Docs

Adults Creativity Food
Performance artist and unlikely chef Tom Brown is bringing strangers together around the tiny kitchen, where he's serving up tiny foods and words of wisdom. Along with his fully functional portable kitchen, Tom has made more than 300 utensils and tools that he uses to cook up real, edible miniature foods. He may be passing out free lunches, but the gifts he gets from his customers are worth all the work.

World's 10 Most Prosperous Countries

Adults Economy Wellness World
The top ten countries on the prosperity index, determined by rankings across nine key categories: Economic Quality, Natural Environment, Health, Social Capital, Personal Freedom, Safety and Security, Education, Governance, and Business Environment.

How do executive orders work? - Christina Greer

Adults Equality History Society
On January 1, 1863, Abraham Lincoln legally changed the status of over 3 million people from "slave" to "free." But his emancipation proclamation wasn't a law - it was an executive order. The framers of the American Constitution made this power available to the executive branch. But what exactly is this tool, how does it work, and what's the extent of its power? Christina Greer explains.

Monster Trucker | Driver Rosalee Ramer // 60 Second Docs

Adults Sports Transportation
When Rosalee Ramer isn't busy studying for her mechanical engineering degree at Georgia Tech, she's behind the wheel of her own monster truck, Wild Flower, competing against drivers twice her age. At 19 she is the youngest professional female monster truck driver, winning last year's Monster Jam Rookie of the Year. Next up - she'll be putting that degree into action when she builds her own monster truck.

Binging with Babish: Szechuan Sauce Revisited (From Real Sample!)

Adults Creativity Food
Last round, my efforts to recreate the fabled McDonald's Szechuan Sauce were wild, flailing shots in the dark, pathetic and meager attempts to recreate a long-lost condiment out of scanty information and back-alley sources.

Intimidated by a College Bully

Adults Relationships Society
When you leave middle school and high school behind, you expect that bullying, fear and intimidation are in the past. When you get to college, you expect that people will be open-minded, compassionate and mature. Unfortunately this in not always the case. It certainly wasn't for Omar.

Why We Eat Too Much

Adults Food Health Psychology
We're hugely invested in the idea that the cause of obesity lies with diet - and that we should therefore solve the problem with kale and apple soup (and other such products). But the real cause of obesity has nothing to do with food. It lies in our emotional under-nourishment. We will start to eat less when we feel more connected, more understood and more in touch with our feelings.

Cairo: MEGACITY of the Middle East

Adults Cities Travel World
Cairo, Egypt is the capital of the Arab world and the largest desert city on the planet. For centuries it has thrived alongside the Nile, the world's longest river.

The colleges where the American dream is still alive

Adults Education Equality
These schools are much better than Harvard, Yale, or Princeton at making poor kids rich.

Kids' assumptions toward gender roles are turned around at career day in school.

Adults Culture Equality Society
When a real-life firefighter, surgeon, and fighter pilot drop in on a classroom, these kids have their assumptions about gender roles turned around.

Myths and Facts About Superintelligent AI

Adults Artificial Intelligence Science Technology
We live in an era of self driving cars, autonomous drones, deep learning algorithms, computers that beat humans at chess and go, and so on. So it's natural to ask, will artificial superintelligence replace humans, take our jobs, and destroy human civilization? Or will AI just become tools like regular computers. AI researcher Max Tegmark helps explain the myths and facts about superintelligence, the impending machine takeover, etc.

Is it possible to create a perfect vacuum? - Rolf Landua and Anais Rassat

Adults Science Technology
The universe is bustling with matter and energy. Even in the vast, apparent emptiness of intergalactic space, there's one hydrogen atom per cubic meter. But is there such thing as a total absence of everything? Is it possible to make a completely empty space? Rolf Landua and Anais Rassat explain the science behind vacuums.

This Biomimetic Tech Could Mean Fewer Trips to the Dentist (You're Welcome)

Adults Biotechnology Health
A new material inspired by mussels may be the key to fillings and crowns that never break or fall out.