TED Talks
TED: Doesn't everyone deserve a chance at a good life? | Jim Yong Kim
Aspirations are rising as never before across the world, thanks in large part to smartphones and the internet -- will they be met with opportunity or frustration? As President of the World Bank Group, Jim Yong Kim wants to end extreme...
Bozeman Science
The Action Potential
In this video Paul Andersen details the action potential in neurons. The resting potential of a neuron (-70mV) is maintained through differences in concentration and permeability of Na, K, and Cl ions. A graded potential is created as...
TED Talks
Eddi Reader: "What You've Got"
Singer/songwriter Eddi Reader performs "What You Do With What You've Got," a meditation on a very TED theme: how to use your gifts and talents to make a difference. With Thomas Dolby on piano.
MinuteEarth
Why Most New Species Are Discovered By Amateurs
Most new species are discovered by amateurs because nowadays non-professionals are actually better suited to the requirements of new species “discovery.”
Crash Course
The Nervous System, Part 2 - Action! Potential!: Crash Course A&P
What do you and a sack of batteries have in common? Today, Hank explains. -- Table of Contents: Ion Channels Regulate Electrochemistry to Create Action Potential 4:51 Resting State 3:22 Depolarization 6:09 Repolarization 7:35...
TED Talks
TED: Good news in the fight against pancreatic cancer | Laura Indolfi
Anyone who has lost a loved one to pancreatic cancer knows the devastating speed with which it can affect an otherwise healthy person. TED Fellow and biomedical entrepreneur Laura Indolfi is developing a revolutionary way to treat this...
TED Talks
TED: A smart loan for people with no credit history (yet) | Shivani Siroya
Trust: How do you earn it? Banks use credit scores to determine if you're trustworthy, but there are about 2.5 billion people around the world who don't have one to begin with -- and who can't get a loan to start a business, buy a home...
TED Talks
TED: The thrilling potential for off-grid solar energy | Amar Inamdar
There's an energy revolution happening in villages and towns across Africa -- off-grid solar energy is becoming a viable alternative to traditional electricity systems. In a bold talk about a true leapfrog moment, Amar Inamdar introduces...
TED Talks
TED: A new way to study the brain's invisible secrets | Ed Boyden
Neuroengineer ed Boyden wants to know how the tiny biomolecules in our brains generate emotions, thoughts and feelings -- and he wants to find the molecular changes that lead to disorders like epilepsy and Alzheimer's. Rather than...
TED Talks
Karl Skjonnemand: The self-assembling computer chips of the future
The transistors that power the phone in your pocket are unimaginably small: you can fit more than 3,000 of them across the width of a human hair. But to keep up with innovations in fields like facial recognition and augmented reality, we...
TED Talks
TED: Teach girls bravery, not perfection | Reshma Saujani
We're raising our girls to be perfect, and we're raising our boys to be brave, says Reshma Saujani, the founder of Girls Who Code. Saujani has taken up the charge to socialize young girls to take risks and learn to program -- two skills...
TED Talks
TED: To learn is to be free | Shameem Akhtar
Shameem Akhtar posed as a boy during her early childhood in Pakistan so she could enjoy the privileges Pakistani girls are rarely afforded: to play outside and attend school. In an eye-opening, personal talk, Akhtar recounts how the...
TED Talks
TED: How farming could employ Africa's young workforce -- and help build peace | Kola Masha
Africa's youth is coming of age rapidly, but job growth on the continent isn't keeping up. The result: financial insecurity and, in some cases, a turn towards insurgent groups. In a passionate talk, agricultural entrepreneur Kola Masha...
Crash Course
Biomedical & Industrial Engineering: Crash Course Engineering #6
We’ve discussed the four main branches of engineering but there are so many other fields doing important work, so today we’re going to explore a few of them. In this episode we’ll explore some of the history and fundamentals of...
TED-Ed
Why good ideas get trapped in the valley of death -- and how to rescue them | TED-Ed
All new products must pass through the "valley of death" before they reach the market. Many never make it out, and sometimes that's OK -- if they don't work, don't fill a need or for any number of reasons. One of the fields where this...
TED Talks
TED: Want to be happier? Stay in the moment | Matt Killingsworth
When are humans most happy? To gather data on this question, Matt Killingsworth built an app, Track Your Happiness, that let people report their feelings in real time. Among the surprising results: We're often happiest when we're lost in...
TED Talks
TED: The rapid growth of the Chinese internet -- and where it's headed | Gary Liu
The Chinese internet has grown at a staggering pace -- it now has more users than the combined populations of the US, UK, Russia, Germany, France and Canada. Even with its imperfections, the lives of once-forgotten populations have been...
TED Talks
TED: Special Olympics let me be myself -- a champion | Matthew Williams
How much do you know about intellectual disabilities? Special Olympics champion and ambassador Matthew Williams is proof that athletic competition and the camaraderie it fosters can transform lives, both on and off the field. Together...
TED-Ed
TED-ED: What is leukemia? - Danilo Allegra and Dania Puggioni
Stem cells found in the bone marrow are crucial for our health because they are needed to become new blood cells that sustain and protect our bodies. But when the transformation goes wrong, harmful mutations can cause the cells to start...
TED Talks
TED: A seat at the table isn't the solution for gender equity | Lilly Singh
Women and girls are conditioned to believe success is "a seat at the table." Creator, actress and author Lilly Singh thinks we need to build a better table. In this hilarious, incisive talk, Singh traces the arc of her career from...
TED Talks
TED: The surprising habits of original thinkers | Adam Grant
How do creative people come up with great ideas? Organizational psychologist Adam Grant studies "originals": thinkers who dream up new ideas and take action to put them into the world. In this talk, learn three unexpected habits of...
TED Talks
TED: The next step in nanotechnology | George Tulevski
Nearly every other year the transistors that power silicon computer chip shrink in size by half and double in performance, enabling our devices to become more mobile and accessible. But what happens when these components can't get any...
Bozeman Science
Average Value of the Electric Field
In this video Paul Andersen explains how the average value of the electric field can be determined by dividing the potential difference by the displacement. Equipotential lines can be used to determine the potential in an electric field...
TED Talks
James B. Glattfelder: Who controls the world?
James Glattfelder studies complexity: how an interconnected system -- say, a swarm of birds -- is more than the sum of its parts. And complexity theory, it turns out, can reveal a lot about how the world economy works. Glattfelder shares...