TED Talks
Dan Barasch: A park underneath the hustle and bustle of New York City
Dan Barasch and James Ramsey have a crazy plan — to create a park, filled with greenery, underneath New York City. The two are developing the Lowline, an underground greenspace the size of a football field. They're building it in a...
SciShow
How 5G Cell Service Could Hurt Weather Forecasts
Good weather forecasts save lives, but scientists are worried that 5G transmissions could drown out frequencies measured by weather satellites, setting weather forecasts back decades.
TED Talks
TED: The world doesn't need more nuclear weapons | erika Gregory
Today nine nations collectively control more than 15,000 nuclear weapons, each hundreds of times more powerful than those dropped on Hiroshima and Nagasaki. We don't need more nuclear weapons; we need a new generation to face the...
Crash Course
Why Human Evolution Matters: Crash Course Big History 204
This week on Crash Course Big History, Emily is talking about process of human evolution, and the knack for innovation that has allowed humans to become so dominant on the Earth. Human innovation, and the ability to build on those...
TED Talks
Diana Laufenberg: How to learn? From mistakes
Diana Laufenberg shares three surprising things she has learned about teaching -- including a key insight about learning from mistakes.
TED Talks
TED: Ukraine's fight to keep educating its children | Zoya Lytvyn
The Russian invasion of Ukraine has destroyed so much -- including hundreds of schools, where the country's children were forging their futures -- but it has not stopped Ukrainians from pursuing knowledge and curiosity. In a deeply...
TED Talks
TED: A "forest generation" living in harmony with nature | Ernestine Leikeki Sevidzem
We need to care for and live in harmony with the environment, says climate and gender activist Ernestine Leikeki Sevidzem. The best way to do that? Nurture a forest generation: one that learns to protect nature. Sevidzem shares how she's...
SciShow
7 Animals That Evolved at Hyperspeed — Because of Us
Evolution is known to be a long, slow process. But thanks to our interference, some animals have adapted at light speed in order to survive. Chapters 1 CLIFF SWALLOWS 2:45 SPORT FISH 3:04 MOSQUITOES 4:28 TURTLE-HEADED SEA SNAKES 6:09...
SciShow
Why Do We Keep Needing New "G"s?
What’s with all the "G"s and why do we keep having to develop new ones to use our phones in this technology.
TED Talks
Chris Abani: On humanity
Chris Abani tells stories of people: People standing up to soldiers. People being compassionate. People being human and reclaiming their humanity. It's "ubuntu," he says: the only way for me to be human is for you to reflect my humanity...
Bozeman Science
Meselson-Stahl Experiment
Paul Andersen explains how the Meselson-Stahl experiment was used to prove that DNA copied itself through a semi-conservative process. They grew E. coli in a medium containing heavy nitrogen (N-15). They then added the E. coli to a...
TED-Ed
TED-Ed: The Furnace Bots | Think Like A Coder, Ep 3 | Alex Rosenthal
This is episode 3 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and...
TED-Ed
TED-Ed: Self-assembly: The power of organizing the unorganized - Skylar Tibbits
From something as familiar as our bodies to things vast as the formation of galaxies, we can observe the process of self-assembly, or when unordered parts come together in an organized structure. Skylar Tibbits explains how we see...
SciShow
The Oldest Star in the Universe
Hank tells the story of the mysterious star known as "Methuseleh," and why scientists think that it is the oldest known star in the universe.
TED-Ed
TED-Ed: If superpowers were real: Immortality - Joy Lin
What if immortality wasn't just the stuff of epic comic book stories? Is it scientifically possible to be immortal? In this series, Joy Lin tackles six superpowers and reveals just how scientifically realistic they can be to us mere...
Bozeman Science
Nucleic Acids
Paul Andersen explains the importance and structure of nucleic acids. He begins with an introduction to DNA and RNA. He then describes the important parts of a nucleotide and shows how they are connected through covalent and hydrogen...
TED-Ed
TED-Ed: How will AI change the world? | TED-Ed
In the coming years, artificial intelligence is probably going to change your life— and likely the entire world. But people have a hard time agreeing on exactly how AI will affect our society. Can we build AI systems that help us fix the...
TED Talks
Kathryn Bouskill: The unforeseen consequences of a fast-paced world
Why does modern technology promise efficiency, but leave us constantly feeling pressed for time? Anthropologist Kathryn Bouskill explores the paradoxes of living in a fast-paced society and explains why we need to reconsider the...
TED Talks
TED: The most powerful yet overlooked resource in schools | Heejae Lim
When teachers and families work together, everyone wins, says education technology entrepreneur and TED Fellow Heejae Lim. She shines a light on an underutilized resource in US public education -- a family's love for their children --...
Bozeman Science
Microevolution
Paul Andersen defines microevolution as any change in the frequency of the allele pool. He then explains the five mechanisms of evolution; small sample size, non-random mating, mutations, gene flow and natural selection.
SciShow
3 Wasps That Will Do Anything to Survive
From ripping your own appendages off to cockroach mind control, wasps go to great lengths to ensure the survival of their species.
TED Talks
TED: What it takes to make change | Jacqueline Novogratz
What can you do to build a better world? Sharing stories from her pioneering career dedicated to tackling poverty, Jacqueline Novogratz offers three principles to spark and sustain a moral revolution. Learn how you can commit (or...
Crash Course
The Law of Conservation: Crash Course Engineering #7
Today Shini explains the law of conservation, beginning with simple, steady-state systems. We’ll discuss conversion and yield, accumulation, and how generation and consumption can affect how much accumulation there is in a system.
Bozeman Science
Population Modeling
Paul Andersen shows you how we can use a spreadsheet to model population changes. He begins with a brief discussion of populations and life cycles. He then shows you how you can model a single generation using a spreadsheet.