TED Talks
Most countries fail at clean energy. Here’s how mine succeeded | Sebastián Kind
New ReviewEnergy expert Sebastián Kind helped Argentina go from virtually no renewable energy to generating nearly 40 percent of its electricity from wind and solar in just six years, despite economic crises and skepticism. How did the country's...
TED Talks
The powerful promise of Earth’s harshest places | Lei Zhang
New ReviewClean energy visionary Lei Zhang loves the Gobi Desert — the most Mars-like place on Earth. Why? Because of the promise it holds to provide the free, abundant solar and wind energy to fuel humanity’s next leap forward. Sharing the story...
TED Talks
Inside India's astonishing solar revolution | Kanika Chawla
New ReviewIn 2014, the world’s second largest coal consumer made a bold promise: to increase its solar capacity from three gigawatts to 100 gigawatts in just eight years. Many people called it overly ambitious, but energy expert Kanika Chawla saw...
TED Talks
700 million people still live without electricity. Here’s how to fix that | Jacqueline Novogratz
New ReviewImpact investor and Acumen CEO Jacqueline Novogratz unveils a bold vision to bring off-grid solar electricity to 700 million people still living in darkness, transforming lives while slashing emissions. She asks a thought-provoking...
PBS
Is There A Simple Solution To The Fermi Paradox?
Around 2 billion years ago, life had plateaued in complexity, ruined the atmosphere, and was on the verge of self-annihilation. But then something strange and potentially extremely lucky happened that enabled endless new evolutionary...
PBS
The Crisis In Physics: Are We Missing 17 Layers of Reality?
Big things are made of smaller things, and those smaller things are made of smaller things still. That’s reductionism in a nutshell, and digging our way to the smallest layer has been one of the primary goals of physics for ever. But...
PBS
The Final Barrier to (Nearly) Infinite Energy
They say fusion is 50 years away, no matter when you ask. Then why are billions suddenly being pumped into fusion startups? Yes to train LLMs, but there's a reason the technobrats are bullish on fusion in particular. The fact is, the...
Be Smart
The Great Oxygenation
Life’s been around on Earth for at least 3.7 billion years. But for most of that time, it was incredibly boring — just simple little cells squirming around in water. It only got interesting in the last few hundred million years. And that...
Be Smart
Why Some of the Rainbow is Missing
Over 200 years ago, scientists were looking at sunlight through a prism when they noticed that part of the rainbow was missing. There were dark lines where there should have been colors. Since then, scientists have unlocked the secrets...
Crash Course
Introduction to Biology: Crash Course Biology #1
Biology is the study of life—a four-letter word that connects you to 4 billion years worth of family tree. The word “life” can be tricky to define, but a shared set of characteristics helps biologists identify living things. In this...
SciShow
How To Make Buildings Into Batteries
It's no secret that we need green energy solutions. But one often-overlooked part of that future is the need to store our green energy longer-term, so finding novel ways to store that energy is key. Enter: gravity batteries. Hosted by:...
SciShow
Should We Build A Geothermal Power Plant In Yellowstone?
Yellowstone National Park is one of the most famous tourist destinations and nature reserves in the world. And it's also the perfect place for.... geothermal power plants? Let's talk about the weird reason why NASA is all for building a...
SciShow
Why Can't We Use Lightning for Electricity?
Correction: This is Watt's law, not Ohm's law! Our math was right but our name was wrong. We need green energy yesterday. And it so happens that nature regularly sends huge bolts of electricity at us out of the sky. So what are the...
SciShow
Why Things Look That Way Under a Blacklight
Fluorescence isn't just a cool effect that turns your white T-shirt neon purple under a black light. Its discovery opened our eyes to a whole new field of science and engineering. And it's all thanks to a crystal called fluorite. Hosted...
SciShow
What’s Below Absolute Zero?
It's impossible to have something colder than absolute zero...right? That's why it's called "absolute zero". Well, it turns out you can get certain substances to negative absolute temperatures (e.g. -1 Kelvin)...but in order to do so,...
SciShow
Are Energy-Efficient Windows Bad For Us?
Low-E windows have reduced the amount of energy required to heat and cool our buildings, a critical step in fighting climate change. But new research suggests we've lost something beneficial in the process. Hosted by: Hank Green (he/him)
Crash Course
Photosynthesis: The Original Solar Power: Crash Course Biology #28
Photosynthesis is a powerful process that is responsible for some of life’s most vital functions. In fact, consumers like us rely on photosynthetic producers to harness energy from the sun so that we can survive and thrive. In this...
Crash Course
Chemical Reactions in Biology: Crash Course Biology #26
Cells need energy to power the chemical reactions that keep their microscopic cities running, and most of that energy comes from a chemical called ATP. In this episode of Crash Course Biology, we’ll learn how our cells use energy, what...
Crash Course
Community Ecology: Interspecies Interactions: Crash Course Biology #6
Community ecology is the study of interactions between different species of living things, and lets ecologists examine the effects of predator-prey relationships, parasites, and mutually beneficial interactions. In this episode of Crash...
Crash Course
Intro to Ecology: Why Did All These Elephants Die?: Crash Course Biology #5
Ecology is the study of the interactions of living things with each other and their environment. It’s a field that not only lets us explore the interconnections between living things, but also how our environment affects us, and how we...
Crash Course
What is Climate Change?: Crash Course Biology #8
Life on Earth has weathered boiling-hot oceans and volcanic-ash-darkened skies—but that’s nothing like the climate change we’re experiencing now. In this episode of Crash Course Biology, we’ll talk about the greenhouse effect, learn why...
TED Talks
Meet NEO, your robot butler in training | Bernt Børnich
What if doing your chores were as easy as flipping a switch? In this talk and live demo, roboticist and founder of 1X Bernt Børnich introduces NEO, a humanoid robot designed to help you out around the house. Watch as NEO shows off its...
TED Talks
The future isn't just coded — it's built | Lauren Dunford
Look around — almost everything you see was manufactured, from baby formula to AI data centers and beyond. Yet we rarely think about how it’s all made. Factory fixer Lauren Dunford pulls back the curtain on modern manufacturing,...
Bozeman Science
Coral Bleaching
In this video Paul Andersen shows how increasing ocean temperatures causes coral polyps to release their symbiotic algae. This process of coral bleaching decreases the availability of energy for the coral and may eventually lead to coral...