MinutePhysics
Why Are Airplane Engines So Big?
The answer to this question has everything to do with drag & kinetic energy vs momentum change (thrust) ie, a bigger engine fan allows for a larger air mass to be accelerated a smaller amount to give the same thrust as you'd get from a...
MinutePhysics
The Most Burly Hurls
Which is the most intense Olympic throwing event? Shot put? Hammer? Discus? Javelin?
TED Talks
Bridging the Divide: Emerging Leaders, Political Polarization, and the Future of U.S. Democracy
President and founder of Eurasia Group and GZERO Media Ian Bremmer discusses the potential for emerging leaders in American politics who can build bridges, citing a few modern figures as examples. While he acknowledges a new generation...
TED-Ed
TED-Ed: How to prevent political corruption | Stephanie Honchell Smith
Corruption is often defined as misuse of a position of power for personal gain. And while corruption in politics is nothing new, it isn't limited to the political sphere; it can happen in schools, sports, businesses, or religious...
TED-Ed
TED-Ed: Could we build a miniature sun on Earth? | George Zaidan
Stars have cores hot and dense enough to force atomic nuclei together, forming larger, heavier nuclei in a process known as fusion. In this process, the mass of the end products is slightly less than the mass of the initial atoms. But...
TED-Ed
TED-Ed: What happened when these 6 dictators took over | Stephanie Honchell Smith
Under certain conditions, the idea of a dictator can sound appealing, like when a democracy isn’t functioning as it should due to corruption or political polarization. People may believe the solution is a "benevolent dictator"— a leader...
SciShow
The 16 Most Asked Questions About Magnets
Magnets - how DO they work? We've got the answer for you, plus a bunch of weird fun magnet facts - where they got their names, why hitting some stuff with a hammer can turn it into magnets, and even why we feed magnets to cows, on purpose.
TED Talks
TED: How to imagine a better future for democracy | Adrienne Maree Brown and Baratunde Thurston
US democracy needs repair — and care is the answer, says author adrienne maree brown in conversation with writer and activist Baratunde Thurston. In a sweeping discussion on what it means to be an active citizen, they unpack how to...
TED Talks
TED: With AI, anyone can be a coder now | Thomas Dohmke
What if you could code just by talking out loud? GitHub CEO Thomas Dohmke shows how, thanks to AI, the barrier to entry to coding is rapidly disappearing — and creating software is becoming as simple (and joyful) as building LEGO. In a...
TED Talks
TED: 3 rules to help you build a successful business | Julissa Prado
Have an idea you're yearning to turn into a business? Julissa Prado, founder and CEO of Rizos Curls, explains how she was inspired by the Latino and immigrant communities she grew up in -- and shares 3 principles that guide her in her work.
TED Talks
TED: Want to truly succeed? Lift others up while you climb | Amber Hikes
It's up to all of us to create a more inclusive and diverse workplace. No matter where you are in your career journey, it's essential that you help others grow, even as you are growing yourself, says ACLU Chief Equity Officer Amber...
TED Talks
TED: How AI and democracy can fix each other | Divya Siddarth
We don't have to sacrifice our freedom for the sake of technological progress, says social technologist Divya Siddarth. She shares how a group of people helped retrain one of the world's most powerful AI models on a constitution they...
TED Talks
TED: The 5 tenets of turning pain into power | Christine Schuler Deschryver
A supportive community is the key to cultivating resilience and unlocking healing. Sharing the story of a transformative recovery program for survivors of sexual violence in the Democratic Republic of the Congo, human rights activist...
TED Talks
TED: What the world can learn from Ukraine's fight for democracy | Olesya Khromeychuk
A flourishing democracy next door is a scary thing for an autocrat, says Ukrainian historian Olesya Khromeychuk. Detailing the history of Ukraine's long struggle for sovereignty and freedom — against Russian tsars, communist dictators...
TED Talks
TED: How to build democracy — in an authoritarian country | Tessza Udvarhelyi
Today, Hungary is in the gray zone between a dictatorship and a democracy, says activist Tessza Udvarhelyi. "This did not happen overnight." In a rousing talk, she reminds us just how close any country can come to authoritarianism — and...
TED Talks
TED: What's your leadership language? | Rosita Najmi
In a globe-trotting career that has spanned corporations, governments, nonprofits and philanthropy, Rosita Najmi has often found herself translating among them. Instead of focusing on leadership style, she makes the case for becoming...
TED Talks
TED: How to build a freelance career that works for you | Shahar Erez
Have you considered freelancing but are unsure where to start — or if it can be a viable long term career option? Tech entrepreneur Shahar Erez shares five steps to help you build a fulfilling (and financially stable) freelance career...
TED Talks
TED: Why helping people makes you happy | Asha Curran
We underestimate the power of our own generous actions, says Asha Curran, CEO of the global generosity movement GivingTuesday. Sharing stories of people making a difference through simple acts of kindness, she shows how generosity, even...
TED Talks
TED: A crash course in making political change | Katie Fahey
You don't need political power to make real change, says activist Katie Fahey. She tells the story of how she led a successful movement in Michigan to end gerrymandering — the practice of drawing district lines to favor one political...
TED Talks
TED: Lessons from my father, Alexey Navalny | Dasha Navalnaya
Dasha Navalnaya is the daughter of Alexey Navalny, the politician and leader of the Russian opposition to Vladimir Putin. Sharing the story of her father's poisoning, persecution and current imprisonment, she details what it was like...
TED-Ed
TED-Ed: How did Apartheid happen, and how did it finally end? | Thula Simpson
For 46 years, South Africans lived under Apartheid, a strict policy of segregation that barred the country’s Black majority from skilled, high-paying jobs, quality education, voting, and much more. So, how did these laws come to be? And...
TED Talks
TED: The case for a new Great Migration in the US | Charles M. Blow
Social progress in the United States often seems to take two steps forward and one step back, with hard-fought civil rights wins countered by a seemingly inevitable backlash. In this spirited talk, writer Charles M. Blow makes the case...
TED Talks
TED: The secret perks of driving electric | Cynthia Williams
Electric vehicles need to be more than just eco-friendly — they have to be more chic, convenient and affordable than their gas-powered alternatives, says sustainability leader Cynthia Williams. She explores what it'll take for an...
TED Talks
TED: My quest to end the horror of gun violence in the US | Lucy McBath
US Congresswoman Lucy McBath has made it her mission to seek bipartisan solutions for gun safety, leading the way in sponsoring so-called "red flag" laws that prevent gun violence and mass shootings. In a searing and timely talk, she...