Amoeba Sisters
Before the Bell Biology: DNA Replication
Time before the bell to try 9 questions focused on DNA Replication? You'll also get answers complete with illustrations and explanations while music plays in the background. This particular video addresses when DNA replication starts,...
TED Talks
TED: The human cost of coal mining in China | Xiaojun "Tom" Wang
Xiaojun "Tom" Wang grew up in the Chinese province of Shanxi, the world's largest coal producer. Each year, more than a billion tons of coal are dug out of Shanxi's mountains, and the impacts are devastating — from massive landslides to...
TED Talks
TED: Meet mini-grids — the clean energy solution bringing power to millions | Tombo Banda
Hundreds of millions of people lack access to electricity in Sub-Saharan Africa, relying on highly polluting diesel and firewood for power and light. Working to brighten the future in her home country of Malawi and beyond, energy access...
TED Talks
TED: The climate solutions worth funding — now | Jonathan Foley
When it comes to climate solutions, "now is better than new, and time is more important than tech," says scientist Jonathan Foley. He presents a six-part framework to more efficiently address climate change, from better aligning capital...
TED Talks
TED: Let your garden grow wild | Rebecca McMackin
Many gardeners work hard to maintain clean, tidy environments ... which is the exact opposite of what wildlife wants, says ecological horticulturist Rebecca McMackin. She shows the beauty of letting your garden run wild, surveying the...
TED Talks
TED: Your invitation to help build a sustainable future | Jim Snabe
If we want to avoid a climate disaster, we need much more radical leadership, says Jim Snabe, who knows a thing or two about leadership as chairman of the world's largest maritime shipping company. In a stirring talk, he encourages...
TED Talks
TED: How poop turns into forests | Ludmila Rattis
Did you know the world's largest tropical forest is partly formed by seeds emerging from poop? Ecologist Ludmila Rattis reveals the surprisingly fruitful benefits of letting nature take care of its own business, sharing how the digestive...
TED Talks
TED: Is climate change slowing down the ocean? | Susan Lozier
Ocean waters are constantly on the move, traveling far distances in complex currents that regulate Earth's climate and weather patterns. How might climate change impact this critical system? Oceanographer Susan Lozier dives into the...
TED Talks
TED: The Herds, a vast act of theater to spark climate action | Amir Nizar Zuabi
Theater has the power to transform the most pressing issues of our time from news stories into human stories, says director and playwright Amir Nizar Zuabi. Recounting his work on the journey of Little Amal — a 13-foot puppet symbolizing...
TED Talks
TED: How sci-fi informs our climate future — and what to do next | Zainab Usman
Science fiction authors have warned us for decades: division among global leaders can quickly create dystopia. Political economist Zainab Usman thinks present-day power struggles may seriously hinder the world's ability to fight climate...
TED Talks
TED: Lessons from the past on adapting to climate change | Laprisha Berry Daniels
Laprisha Berry Daniels' grandparents left the Southern United States and migrated north to Detroit in the 1950s — a move that could be considered a big "climate change." Now, as a public health social worker, Berry Daniels mines the...
TED Talks
TED: What if a simple blood test could detect cancer? | Hani Goodarzi
Catching cancer at its earliest stages saves lives. But in a body made up of trillions of cells, how do you spot a small group of rogue cancer cells? Biomedical researcher Hani Goodarzi discusses his lab's discovery of a new class of...
TED Talks
TED: Can a simple brick be the next great battery? | John O'Donnell
The world relies on manufacturing, and manufacturing relies on heat — a massive contributor to global carbon emissions, responsible for a quarter of the world's fossil fuel use. Energy entrepreneur John O'Donnell has figured out a...
TED Talks
TED: The beauty of wildlife — and an artistic call to protect it | Isabella Kirkland
I think of my paintings as alarm clocks, says artist Isabella Kirkland. "They're reminders of what's at stake; the only problem is we keep pushing the snooze button." Investigating humanity's relationship to nature, she shares work that...
TED Talks
TED: Is alternative meat the recipe for a healthier planet? | Tao Zhang
A Chinese saying goes, "There's no pleasure in eating without meat." And the data backs that up: every year, China consumes 26 percent of the world's meat and 45 percent of its seafood — numbers that could grow alongside rising incomes....
TED Talks
TED: Enough red tape — we need to say yes to clean energy | Rich Powell
Climate innovation leader Rich Powell dives into the bureaucracy, bottlenecks and not-in-my-backyard attitude preventing the US from achieving its green energy goals, warning that we need about 10,000 new clean energy projects to be...
Bozeman Science
Anatomy and Physiology
Paul Andersen introduces Anatomy and Physiology in this podcast. He starts by describing how the form of an object fits the function. He then explains the themes of homeostasis and hierarchy. He describes the four major types of tissues;...
MinutePhysics
How Do Bikes Stay Up?
Learn the about the physics that allows bikes to stay upright and in motion, even without a rider.
Be Smart
How Was the Grand Canyon Formed?
I was in Arizona recently for Phoenix Comic-Con, and had the amazing pleasure of seeing one of Earth's greatest natural wonders… the Grand Canyon. More than a mile deep, and several miles across, it just defies belief. But I couldn't...
MinutePhysics
How Do We Know The Universe Is Accelerating?
The universe is expanding – this we know from looking at red shifts of distant galaxies – but the acceleration of the universe's expansion is harder to measure. It requires measuring the change of recession velocity over time, and it's...
SciShow
Relative Humidity Isn't What You Think It Is
Have you ever wondered why 75% humidity in the summer feels sticky, but 75% humidity in the winter feels super dry? Turns out, the common definition of humidity is inconvenient and confusing. But there is a better way!
SciShow
Plasma, The Most Common Phase of Matter in the Universe
Get to know plasma, the most common, but probably least understood, phase of matter in the universe!
SciShow
How To Clear Icy Roads, With Science
Icy roads are a huge hazard, and typical methods of de-icing them can be pretty toxic to wildlife. Which is why researchers have been so fixated on finding better alternatives, from brine to pig pee.