PBS
Should Space be Privatized?
Will the future of space exploration be guided by public or private entities? Which is better?
TED Talks
Alexis Ohanian: How to make a splash in social media
In a funny, rapid-fire 4 minutes, Alexis Ohanian of Reddit tells the real-life fable of one humpback whale's rise to web stardom. The lesson of Mister Splashy Pants is a shoo-in classic for meme-makers and marketers in the Facebook age.
TED Talks
TED: The actual cost of preventing climate breakdown | Yuval Noah Harari
Nobody really knows how much it would cost to avoid the worst impacts of climate change. Yet historian Yuval Noah Harari's analysis, based on the work of scientists and economists, indicates that humanity might avert catastrophe by...
TED Talks
TED: Use your voice, vote and wallet for climate action | Halla Tómasdóttir
Recently back from the COP26 UN climate conference in Scotland, former Icelandic presidential candidate Halla Tómasdóttir sums up the outcomes of the gathering, the progress she saw and the work that's left to be done this way: "The most...
SciShow
Why Does the US Have So Many Power Outages?
The United States has a lot more power outages than other countries do, and fixing this problem will be a massive undertaking. Chapters View all Across the United States, the average customer loses power about once or twice a year, for a...
TED Talks
Julius Maada Bio: A vision for the future of Sierra Leone
When Julius Maada Bio first seized political power in Sierra Leone in 1996, he did so to improve the lives of its citizens. But he soon realized that for democracy to flourish, its foundation needs to be built on the will of the people....
TED Talks
Richard St. John: 8 secrets of success
Why do people succeed? Is it because they're smart? Or are they just lucky? Neither. Analyst Richard St. John condenses years of interviews into an unmissable 3-minute slideshow on the real secrets of success.
TED Talks
Chip Conley: Measuring what makes life worthwhile
When the dotcom bubble burst, hotelier Chip Conley went in search of a business model based on happiness. In an old friendship with an employee and in the wisdom of a Buddhist king, he learned that success comes from what you count.
TED Talks
TED: Capitalism will eat democracy -- unless we speak up | Yanis Varoufakis
Have you wondered why politicians aren't what they used to be, why governments seem unable to solve real problems? economist Yanis Varoufakis, the former Minister of Finance for Greece, says that it's because you can be in politics today...
TED Talks
TED: The tech-forward rejuvenation of "underdog" cities | Irma L. Olguin Jr.
Computer skills aren't what's stopping people from breaking into the tech industry, says social entrepreneur Irma L. Olguin Jr. More often, the biggest hurdles are things like access to childcare, transportation and financial stability....
TED Talks
TED: Why the passport needs an upgrade | Karoli Hindriks
It's time to give paper passports a digital upgrade, says entrepreneur Karoli Hindriks. Looking to Estonia's technology-driven government for inspiration, she envisions a world where immigration is no longer hindered by bureaucracy and...
SciShow
Why Do We Smile
Many species show off their teeth as a threat, so where did humans get our friendly smiles?
TED Talks
Sheryl WuDunn: Our century's greatest injustice
Sheryl WuDunn's book "Half the Sky" investigates the oppression of women globally. Her stories shock. Only when women in developing countries have equal access to education and economic opportunity will we be using all our human resources.
TED Talks
Chrystia Freeland: The rise of the new global super-rich
Technology is advancing in leaps and bounds -- and so is economic inequality, says writer Chrystia Freeland. In an impassioned talk, she charts the rise of a new class of plutocrats (those who are extremely powerful because they are...
TED Talks
Wendy De La Rosa: 3 psychological tricks to help you save money
We all want to save more money -- but overall, people today are doing less and less of it. Behavioral scientist Wendy De La Rosa studies how everyday people make decisions to improve their financial well-being. What she's found can help...
TED Talks
Dana Kanze: The real reason female entrepreneurs get less funding
Women own 39 percent of all businesses in the US, but female entrepreneurs get only two percent of venture funding. What's causing this gap? Dana Kanze shares research suggesting that it might be the types of questions start-up founders...
TED Talks
TED: How to stop banks from investing in dirty energy | Lucie Pinson
Money is pollution's biggest driving force -- particularly, the cash invested in dirty energy projects, says financial responsibility campaigner Lucie Pinson. She shares a three-pronged approach to stop banks from funding fossil fuel...
TED Talks
TED: Poverty isn't a lack of character; it's a lack of cash | Rutger Bregman
Ideas can and do change the world, says historian Rutger Bregman, sharing his case for a provocative one: guaranteed basic income. Learn more about the idea's 500-year history and a forgotten modern experiment where it actually worked --...
SciShow
Is Science Reliable
It seems like every few months, there’s some kind of news about problems with the scientific publishing industry. Why does this keep happening? And what can be done to fix the system?
TED Talks
Andrew Mwenda: Aid for Africa? No thanks.
In this provocative talk, journalist Andrew Mwenda asks us to reframe the "African question" -- to look beyond the media's stories of poverty, civil war and helplessness and see the opportunities for creating wealth and happiness...
TED Talks
Seth Priebatsch: The game layer on top of the world
In this far-seeing talk, Seth Priebatsch shows how game dynamics are reshaping the world -- from a classroom where students "level up" instead of being graded ,to a pervasive game called "happy hour" that you may already be playing. Get...
TED Talks
Paul Pholeros: How to reduce poverty? Fix homes
In 1985, architect Paul Pholeros was challenged to "stop people getting sick" in a small indigenous community in south Australia. And it meant thinking way beyond medicine. In this sparky, interactive talk, Pholeros shares his work with...
TED Talks
Bill and Melinda Gates: Why giving away our wealth has been the most satisfying thing we've done
In 1993, Bill and Melinda Gates took a walk on the beach and made a big decision: to give their Microsoft wealth back to society. In conversation with Chris Anderson, the couple talks about their work at the Bill & Melinda Gates...
SciShow
The Strange Scourge of Light Pollution
Light pollution -- it's not just the bane of light sleepers and frustrated astronomers. It also is tinkering with the biological cycles of all kinds of living things, including us! SciShow takes you behind the glare to understand the...