The BEST episodes of TED Talks season 2017

#1 - Chris Sheldrick: A precise, three-word address for every place on earth

Season 2017 - Episode 223 - Aired 10/19/2017

With what3words, Chris Sheldrick and his team have divided the entire planet into three-meter squares and assigned each a unique, three-word identifier, like famous.splice.writers or blocks.evenly.breed, giving a precise address to the billions of people worldwide who don't have one. In this quick talk about a big idea, Sheldrick explains the economic and political implications of giving everyone an accurate address -- from building infrastructure to sending aid to disaster zones to delivering hot pizza.

#2 - Helen Pearson: Lessons from the longest study on human development

Season 2017 - Episode 205 - Aired 10/2/2017

For the past 70 years, scientists in Britain have been studying thousands of children through their lives to find out why some end up happy and healthy while others struggle. It's the longest-running study of human development in the world, and it's produced some of the best-studied people on the planet while changing the way we live, learn and parent. Reviewing this remarkable research, science journalist Helen Pearson shares some important findings and simple truths about life and good parenting.

#3 - Helen Czerski: The fascinating physics of everyday life

Season 2017 - Episode 189 - Aired 9/14/2017

Physics doesn't just happen in a fancy lab -- it happens when you push a piece of buttered toast off the table or drop a couple of raisins in a fizzy drink or watch a coffee spill dry. Become a more interesting dinner guest as physicist Helen Czerski presents various concepts in physics you can become familiar with using everyday things found in your kitchen.

#4 - Karoliina Korppoo: How a video game might help us build better cities

Season 2017 - Episode 197 - Aired 9/22/2017

With more than half of the world population living in cities, one thing is undeniable: we are an urban species. Part game, part urban planning sketching tool, "Cities: Skylines" encourages people to use their creativity and self-expression to rethink the cities of tomorrow. Designer Karoliina Korppoo takes us on a tour through some extraordinary places users have created, from futuristic fantasy cities to remarkably realistic landscapes. What does your dream city look like?

#5 - Julio Gil: Future tech will give you the benefits of city life anywhere

Season 2017 - Episode 201 - Aired 9/27/2017

Don't believe predictions that say the future is trending towards city living. Urbanization is actually reaching the end of its cycle, says logistics expert Julio Gil, and soon more people will be choosing to live (and work) in the countryside, thanks to rapid advances in augmented reality, autonomous delivery, off-the-grid energy and other technologies. Think outside city walls and consider the advantages of country living with this forward-thinking talk.

#6 - Euna Lee: What I learned as a prisoner in North Korea

Season 2017 - Episode 204 - Aired 9/29/2017

In March 2009, North Korean soldiers captured journalist Euna Lee and her colleague Laura Ling while they were shooting a documentary on the border with China. The courts sentenced them to 12 years of hard labor, but American diplomats eventually negotiated their release. In this surprising, deeply human talk, Lee shares her experience living as the enemy in a detention center for 140 days -- and the tiny gestures of humanity from her guards that sustained her.

#7 - Augie Picado: The real reason manufacturing jobs are disappearing

Season 2017 - Episode 188 - Aired 9/14/2017

We've heard a lot of rhetoric lately suggesting that countries like the US are losing valuable manufacturing jobs to lower-cost markets like China, Mexico and Vietnam -- and that protectionism is the best way forward. But those jobs haven't disappeared for the reasons you may think, says border and logistics specialist Augie Picado. He gives us a reality check about what global trade really looks like and how shared production and open borders help us make higher quality products at lower costs.

#8 - Mei Lin Neo: The fascinating secret lives of giant clams

Season 2017 - Episode 199 - Aired 9/25/2017

When you think about the deep blue sea, you might instantly think of whales or coral reefs. But spare a thought for giant clams, the world's largest living shellfish. These incredible creatures can live to 100, grow up to four and a half feet long and weigh as much as three baby elephants. In this charming talk, marine biologist Mei Lin Neo shares why she's obsessively trying to turn these legendary sea creatures into heroes of the oceans.

#9 - Huang Yi & KUKA: A human-robot dance duet

Season 2017 - Episode 224 - Aired 10/20/2017

Harmoniously weaving together the art of dance and the science of mechanical engineering, Huang Yi performs a man-machine dance duet with KUKA -- a robot he conceptualized and programmed -- set to stirring cello by Joshua Roman.

#10 - Armando Azua-Bustos: The most Martian place on Earth

Season 2017 - Episode 194 - Aired 9/20/2017

How can you study Mars without a spaceship? Head to the most Martian place on Earth -- the Atacama Desert in Chile. Astrobiologist Armando Azua-Bustos grew up in this vast, arid landscape and now studies the rare life forms that have adapted to survive there, some in areas with no reported rainfall for the past 400 years. Explore the possibility of finding life elsewhere in the universe without leaving the planet with this quick, funny talk.

#11 - Chance Coughenour: How your pictures can help reclaim lost history

Season 2017 - Episode 176 - Aired 8/31/2017

Digital archaeologist Chance Coughenour is using pictures -- your pictures -- to reclaim antiquities that have been lost to conflict and disaster. After crowdsourcing photographs of destroyed monuments, museums and artifacts, Coughenour uses advanced technology called photogrammetry to create 3D reconstructions, preserving the memory of our global, shared, human heritage. Find out more about how you can help celebrate and safeguard history that's being lost.

#12 - Duarte Geraldino: What we're missing in the debate about immigration

Season 2017 - Episode 193 - Aired 9/19/2017

Between 2008 and 2016, the United States deported more than three million people. What happens to those left behind? Journalist Duarte Geraldino picks up the story of deportation where the state leaves off. Learn more about the wider impact of forced removal as Geraldino explains how the sudden absence of a mother, a local business owner or a high school student ripples outward and wreaks havoc on the relationships that hold our communities together.

#13 - Olúfẹ́mi Táíwò: Why Africa must become a center of knowledge again

Season 2017 - Episode 192 - Aired 9/19/2017

How can Africa, the home to some of the largest bodies of water in the world, be said to have a water crisis? It doesn't, says Olúfẹ́mi Táíwò -- it has a knowledge crisis. Táíwò suggests that lack of knowledge on important topics like water and food is what stands between Africa's current state and a future of prosperity. In a powerful talk, he calls for Africa to make the production of knowledge within the continent rewarding and reclaim its position as a locus of learning on behalf of humanity.

#14 - Jun Wang: How digital DNA could help you make better health choices

Season 2017 - Episode 191 - Aired 9/18/2017

What if you could know exactly how food or medication would impact your health -- before you put it in your body? Genomics researcher Jun Wang is working to develop digital doppelgangers for real people; they start with genetic code, but they'll also factor in other kinds of data as well, from food intake to sleep to data collected by a "smart toilet." With all of this valuable information, Wang hopes to create an engine that will change the way we think about health, both on an individual level and as a collective.

#15 - Sethembile Msezane: Living sculptures that stand for history's truths

Season 2017 - Episode 190 - Aired 9/15/2017

In the century-old statues that occupy Cape Town, Sethembile Mzesane didn't see anything that looked like her own reality. So she became a living sculpture herself, standing for hours on end in public spaces dressed in symbolic costumes, to reclaim the city and its public spaces for her community. In this powerful, tour-de-force talk, she shares the stories and motivation behind her mesmerizing performance art.

#16 - Pierre Thiam: A forgotten ancient grain that could help Africa prosper

Season 2017 - Episode 187 - Aired 9/13/2017

Forget quinoa. Meet fonio, an ancient "miracle grain" native to Senegal that's versatile, nutritious and gluten-free. In this passionate talk, chef Pierre Thiam shares his obsession with the hardy crop and explains why he believes that its industrial-scale cultivation could transform societies in Africa.

#17 - Alexander Wagner: What really motivates people to be honest in business

Season 2017 - Episode 186 - Aired 9/12/2017

Each year, one in seven large corporations commits fraud. Why? To find out, Alexander Wagner takes us inside the economics, ethics and psychology of doing the right thing. Join him for an introspective journey down the slippery slopes of deception as he helps us understand why people behave the way they do.

#18 - Emily Esfahani Smith: There's more to life than being happy

Season 2017 - Episode 185 - Aired 9/11/2017

Our culture is obsessed with happiness, but what if there's a more fulfilling path? Happiness comes and goes, says writer Emily Esfahani Smith, but having meaning in life -- serving something beyond yourself and developing the best within you -- gives you something to hold onto. Learn more about the difference between being happy and having meaning as Smith offers four pillars of a meaningful life.

#19 - Caitlin Quattromani and Lauran Arledge: How our friendship survives our opposing politics

Season 2017 - Episode 184 - Aired 9/11/2017

Can you still be friends with someone who doesn't vote the same way as you? For Caitlin Quattromani and Lauran Arledge, two best friends who think very differently about politics, the outcome of the 2016 US presidential election could have resulted in hostility and disrespect. Hear about how they chose to engage in dialogue instead -- and learn some simple tactics they're using to maintain their bipartisan friendship.

#20 - OluTimehin Adegbeye: Who belongs in a city?

Season 2017 - Episode 183 - Aired 9/8/2017

Underneath every shiny new megacity, there's often a story of communities displaced. In this moving, poetic talk, OluTimehin Adegbeye details how government land grabs are destroying the lives of thousands who live in the coastal communities of Lagos, Nigeria, to make way for a "new Dubai." She compels us to hold our governments and ourselves accountable for keeping our cities safe for everyone. "The only cities worth building, indeed the only futures worth dreaming of, are those that include all of us, no matter who we are or how we make homes for ourselves," she says.

#21 - Benjamin Grant: What it feels like to see Earth from space

Season 2017 - Episode 182 - Aired 9/7/2017

What the astronauts felt when they saw Earth from space changed them forever. Author and artist Benjamin Grant aims to provoke this same feeling of overwhelming scale and beauty in each of us through a series of stunning satellite images that show the effects human beings are having on the planet. "If we can adopt a more expansive perspective, embrace the truth of what is going on and contemplate the long-term health of our planet, we will create a better, safer and smarter future for our one and only home," Grant says.

#22 - Tomás Saraceno: Would you live in a floating city in the sky?

Season 2017 - Episode 181 - Aired 9/7/2017

In a mind-bending talk that blurs the line between science and art, Tomás Saraceno exhibits a series of air-inspired sculptures and installations designed to usher in a new era of sustainability, the "Aerocene." From giant, cloud-like playgrounds suspended 22 meters in the air to a balloon sculpture that travels the world without burning a single drop of fossil fuel, Saraceno's work invites us to explore the bounds of our fragile human and terrestrial ecosystems. (In Spanish with English subtitles.)

#23 - Ray Dalio: How to build a company where the best ideas win

Season 2017 - Episode 180 - Aired 9/6/2017

What if you knew what your coworkers really thought about you and what they were really like? Ray Dalio makes the business case for using radical transparency and algorithmic decision-making to create an idea meritocracy where people can speak up and say what they really think -- even calling out the boss is fair game. Learn more about how these strategies helped Dalio create one of the world's most successful hedge funds and how you might harness the power of data-driven group decision-making.

#24 - Erin Marie Saltman: How young people join violent extremist groups -- and how to stop them

Season 2017 - Episode 179 - Aired 9/5/2017

#25 - Daan Roosegaarde: A smog vacuum cleaner and other magical city designs

Season 2017 - Episode 178 - Aired 9/5/2017

Daan Roosegaarde uses technology and creative thinking to produce imaginative, earth-friendly designs. He presents his latest projects -- from a bike path in Eindhoven, where he reinterpreted "The Starry Night" to get people thinking about green energy, to Beijing, where he developed a smog vacuum cleaner to purify the air in local parks, to a dance floor that generates electricity to power a DJ booth. Check out Roosegaarde's vision for a future where creativity is our true capital.