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TED-Ed: A Climate Change Solution Under Our Feet
There's two times more carbon in the Earth's soil than in all of its vegetation and the atmosphere — combined. Biogeochemist Asmeret Asefaw Berhe dives into the science of soil and shares how we could use its awesome carbon-trapping power to offset climate change.
TED-Ed: Strengths and Weaknesses of Acids and Bases
Vinegar may have a powerful smell, but did you know it's actually a weak acid? In the chemical economy, acids actively give away their protons while bases actively collect them -- but some more aggressively than others. George Zaidan and Charles Morton use the currency of subatomic particles to explain this unseen exchange.
TED-Ed: Is Perfectionism Just Procrastination in Disguise?
What separates struggling artists from successful ones? Looking to creative geniuses like Mozart, Edison and Monet, video creator Jon Youshaei explains why aiming to be prolific — despite flops and failures along the way — is the key to unlocking your creative success.
TED-Ed: Can the Economy Grow Forever?
Many economists think that an eternally growing economy is necessary to keep improving people’s lives, and that if the global economy stops growing, people would fight more over the fixed amount of value that exists, rather than working to generate new value. Which raises the question: is infinite growth possible on a finite planet? Explore how economies can balance efficiency with sustainability.
TED-Ed: How the Stamp Act Divided a Nation
You may think that things are heated in Washington today, but the Kansas-Nebraska Act of 1854 had members of Congress so angry they pulled out their weapons -- and formed the Republican Party. The issues? Slavery and states' rights, which led the divided nation straight into the Civil War. Ben Labaree, Jr. explains how Abraham Lincoln's party emerged amidst the madness.
TED-Ed: How to Manage Time According to Machines
Human beings and computers alike share the challenge of how to get as much done as possible in a limited time. Over the last fifty or so years, computer scientists have learned a lot of good strategies for managing time effectively — and they have a lot of experience with what can go wrong. Brian Christian shares how we can use some of these insights to help make the most of our own lives.
TED-Ed: What Triggers a Chemical Reaction?
Chemicals are in everything we see, and the reactions between them can look like anything from rust on a spoon to an explosion on your stovetop. But why do these reactions happen in the first place? Kareem Jarrah answers this question by examining the two underlying forces that drive both endothermic and exothermic chemical reactions: enthalpy and entropy.
TED-Ed: The Carbon Cycle
What exactly is the carbon cycle? Nathaniel Manning provides a basic look into the cyclical relationship of carbon, humans and the environment.
TED-Ed: The Law of Conservation of Mass
Everything in our universe has mass — from the smallest atom to the largest star. But the amount of mass has remained constant throughout existence even during the birth and death of stars, planets and you. How can the universe grow while maintaining its mass? Todd Ramsey answers that question by unravelling the law of conservation of mass.
TED-Ed: How Atoms Bond
Atoms can (and do) bond constantly; it's how they form molecules. Sometimes, in an atomic tug-of-war, one atom pulls electrons from another, forming an ionic bond. Atoms can also play nicely and share electrons in a covalent bond. From simple oxygen to complex human chromosome 13, George Zaidan and Charles Morton break down the humble chemical bond.
The chemistry of cookies - Stephanie Warren
Explore the delicious science behind baking cookies.
The Infamous Overpopulation Bet Simon vs Ehrlich Soraya Field Fiorio
In 1980, Paul Ehrlich and Julian Simon bet $1,000 on a question with stakes that couldn’t be higher: would the earth run out of resources to sustain a growing human population? They bet $200 on the price of five metals. If the price of a metal decreased or held steady over the next decade, Simon won. If the price increased, Ehrlich won. So, what happened? Soraya Field Fiorio investigates.
How Two Decisions Led Me to Olympic Glory
From setback and injury to an Olympic gold medal -- see how confidently making decisions led one bobsledder down an unexpected pathway to victory.
Why is the Us Constitution so Hard to Amend Peter Paccone
When it was ratified in 1789, the US Constitution didn’t just institute a government by the people – it provided a way for the people to alter the Constitution itself. And yet, of the nearly 11,000 amendments proposed in the centuries since, only 27 have succeeded as of 2016. Peter Paccone explains why the US Constitution is so hard to change.
Grit the Power of Passion and Perseverance Angela Lee Duckworth
Leaving a high-flying job in consulting, Angela Lee Duckworth took a job teaching math to seventh graders in a New York public school. She quickly realized that IQ wasn't the only thing separating the successful students from those who struggled. Here, she explains her theory of "grit" as a predictor of success.
How to See More and Care Less the Art of Georgia O Keeffe Iseult Gillespie
Feeling disconnected from creating art within classical conventions, artist Georgia O’Keeffe began experimenting with abstract drawings that defied easy classification. Using the shapes and rhythms of nature to capture her internal world, these experiments became the cornerstone of the movement known as American Modernism. Iseult Gillespie explores the works of the elusive painter and sculptor.
The Dark History of Zombies Christopher M Moreman
Zombies have a distinct lineage— one that traces back to Equatorial and Central Africa. For three centuries, African people were enslaved and brought to the Caribbean Islands. There, a religion known as vodou developed, along with the belief that a person’s soul can be captured and stored, becoming a body-less zombie. Christopher M. Moreman uncovers the true origins of the undead.
How Labor Unions Shape Society Margaret Levi
The weekend. Social Security. Health insurance. What do these things have in common? They all exist thanks to the advocacy of labor unions. Political economist Margaret Levi explains how these organizations forge equality and protect worker rights, calling for a 21st-century revival of the labor movement in order to build a more equitable future.