PBS
Can Free Will be Saved in a Deterministic Universe?
Physicists have a long history of sticking our noses where they don’t belong - and one of our favorite places to step beyond our expertise is the question of consciousness and free will. Sometimes our musings are insightful, sometimes...
PBS
The Arrow of Time and How to Reverse It
Ever wish you could travel backward in time and do things differently? Good news: the laws of physics seem to say traveling backward in time is the same as traveling forwards. So why do we seem to be stuck in this inexorable flow towards...
PBS
Will Wormholes Allow Fast Interstellar Travel?
From Stargate to Interstellar, wormholes are our favorite method for traveling across fictional universes. But they are also a very serious field of study for some of our greatest minds over the last century. So what’s the holdup? When...
PBS
Could The Universe Be Inside A Black Hole?
What is inside a black hole? Inevitable crushing doom? Gateways to other universes? Weird, multidimensional libraries? If you’ve ever wanted to know then you might be in luck - Some physicists have argued that you’re inside one right now.
PBS
How Far Beyond Earth Could Humanity Spread?
We humans have always been explorers. The great civilizations that have arisen across the world are owed to our restless ancestors. These days, there’s not much of Earth left to explore. But if we look up, there’s a whole universe out...
TED Talks
TED: How to be a leader for climate justice | David Lammy and Justin J. Pearson
Climate justice is taking center stage -- geopolitically, socially and morally. In a contagiously courageous conversation, Member of Parliament in the UK David Lammy and Tennessee state representative Justin J. Pearson discuss how brave...
TED Talks
TED: How to solve the world's biggest problems | Natalie Cargill
Sometimes the world's biggest issues can seem so intractable that meaningful change feels impossible. But what if the answer has been right in front of us all along? What if the answer is actually throwing money at the problems? In this...
TED Talks
TED: Why change is so scary -- and how to unlock its potential | Maya Shankar
Unexpected change like an accident, an illness or a relationship that suddenly ends is inevitable -- and disorienting. With a heartfelt and optimistic take on life's curveballs, cognitive scientist Maya Shankar shares how these...
TED Talks
TED: The AI-powered tools supercharging your imagination | Bilawal Sidhu
How is AI changing the nature of human imagination and creativity? Through a mind-bending tour of new techniques he's been tinkering with, creative technologist Bilawal Sidhu shows how anyone can use AI-powered tools -- like 3D scans...
TED Talks
TED: Why rivals are working together to transform shipping | Bo Cerup-Simonsen
What would it take to make global supply chains cleaner and greener? Bo Cerup-Simonsen -- who's helping decarbonize the maritime industry as CEO of the Mærsk Mc-Kinney Møller Center for Zero Carbon Shipping -- discusses why tenacious...
TED Talks
TED: Climate action is on the cusp of exponential growth | Simon Stiell
Climate action is speeding up -- and we each have the power to push that transformation forward. As the head of the UNFCCC, the UN's entity supporting the global response to climate change, Simon Stiell points to clear social and...
TED Talks
TED: The growing megafire crisis -- and how to contain it | George T. Whitesides
Megafires, or fires that burn more than 100,000 acres, are becoming more frequent worldwide, wreaking havoc on landscapes and communities -- and fire experts say the problem is only going to get worse. George T. Whitesides is focused on...
TED Talks
TED: Are we the last generation -- or the first sustainable one? | Hannah Ritchie
The word "sustainability" gets thrown around a lot these days. But what does it actually mean for humanity to be sustainable? Environmental data scientist Hannah Ritchie digs into the numbers behind human progress across centuries,...
TED Talks
TED: The climate crisis is expensive -- here's who should pay for it | Avinash Persaud
The developing world is most affected by climate change but has contributed the least to the problem. Meanwhile, rich countries historically exacerbated the environmental crisis and grew wealthy as a result -- but aren't helping...
TED Talks
TED: Detroit's climate crisis -- and how to build a resilient future everywhere | Anika Goss
How can cities become resilient to the shocks of climate change? As a leading force behind Detroit's ongoing revitalization, Anika Goss spends a lot of time thinking about this question. Connecting the city's industrial past to its...
TED Talks
TED: CRISPR's next advance is bigger than you think | Jennifer Doudna
You've probably heard of CRISPR, the revolutionary technology that allows us to edit the DNA in living organisms. Biochemist and 2023 Audacious Project grantee Jennifer Doudna earned the Nobel Prize for her groundbreaking work in this...
TED Talks
TED: The renewable energy revolution happening in Ukraine | Maxim Timchenko
What's it like keeping the lights on during war? Ukrainian energy executive Maxim Timchenko shares how his company has diversified Ukraine's power structures to survive Russian attacks, highlighting the resilience of renewable energy....
TED Talks
TED: An economy powered by sun and wind -- it's almost here | Kala Constantino
With some of the highest energy bills in Southeast Asia and extreme weather to match, the Philippines experiences the climate crisis -- and climate activism -- as a part of daily life. Clean energy advocate Kala Constantino highlights...
TED Talks
TED: Will superintelligent AI end the world? | Eliezer Yudkowsky
Decision theorist Eliezer Yudkowsky has a simple message: superintelligent AI could probably kill us all. So the question becomes: Is it possible to build powerful artificial minds that are obedient, even benevolent? In a fiery talk,...
TED Talks
TED: War, AI and the new global arms race | Alexandr Wang
Lethal drones with facial recognition, armed robots, autonomous fighter jets: we're at the dawn of a new age of AI-powered warfare, says technologist Alexandr Wang. He explores why data will be the secret weapon in this uncharted...
SciShow
Should We Put Wind Turbines on Kites?
The future of wind energy is solarpunk. At least according to some manufacturers who want to put wind turbines on kites, blimps, or just generally up in the air where wind can generate green energy and fight climate change more efficiently.
SciShow
The Weird Reason More Bridges Are About to Fail
While they are incredible engineering marvels, we don't think about bridges all that much. But there's a good reason we should all be thinking about our bridges, since there's a weird reason that more of them might be at risk of failure...
MinutePhysics
3 Simple Ways to Time Travel (& 3 Complicated Ones)
One Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in one minute!
PBS
Use Of Artificial Intelligence Generates Questions About The Future Of Art
Artificial intelligence is everywhere and part of our conversations about education, politics and social media. It's also a hot topic in the arts world as programs that generate art using AI are widely available to the public. But what...