TED-Ed
TED-Ed: What's the fastest way to alphabetize your bookshelf? - Chand John
You work at the college library. You're in the middle of a quiet afternoon when suddenly, a shipment of 1,280 books arrives. The books are in a straight line, but they're all out of order, and the automatic sorting system is broken. How...
SciShow
Ecosystems Around the Globe Contain Echoes of Past Peoples
There’s a common misconception that humans of the past lived in harmony with their environments and left them “pristine and untouched.” However, there is plenty of evidence that these relationships were much more complicated
TED Talks
David Keith: A critical look at geoengineering against climate change
Environmental scientist David Keith proposes a cheap, effective, shocking means to address climate change: What if we injected a huge cloud of ash into the atmosphere to deflect sunlight and heat?
SciShow
4 Ways Ancient Infrastructure Can Prepare Us for the Future
Ancient civilizations developed clever solutions to their unique challenges and environments, and learning from those engineers can help us build a greener world today.
MinutePhysics
Spacetime Intervals: Not EVERYTHING is Relative | Special Relativity Ch. 7
This video is chapter 7 in my series on special relativity, and it covers the idea that some things AREN'T relative: there IS a sense of absolute length and absolute time, which can be agreed upon from all moving perspectives (as long as...
TED-Ed
TED-Ed: Your body vs. implants - Kaitlyn Sadtler
Why do medical implants like insulin pumps and prosthetic knees need replacement? Explore how the immune system fights implants and how new devices are trying to help. -- Insulin pumps improve the lives of millions of people with...
TED Talks
Wendy Freedman: This telescope might show us the beginning of the universe
When and how did the universe begin? A global group of astronomers wants to answer that question by peering as far back in time as a large new telescope will let us see. Wendy Freedman headed the creation of the Giant Magellan Telescope,...
MinutePhysics
Por Qué Deberían Preocuparnos las Armas Nucleares
Más información sobre cómo dejar de invertir en compañías que promueven las armas nucleares (en inglés): http://responsibleinvest.org/ Gracias al Future of Life Institute por apoyar la producción de este video http://www.futureoflife.org...
MinutePhysics
GPS, Relatividad y Detección nuclear
El Sistema de Posicionamiento Global (GPS) es sólo un gran reloj en el espacio (que además puede detectar explosiones nucleares) Video anterior: Cómo superar la velocidad de la luz ----------------------- Suscríbete a MinutoDeFísica -...
Crash Course
How the Leaning Tower of Pisa Was Saved: Crash Course Engineering #40
This week we’re going underground to explore geotechnical and seismic engineering. We’ll look at how structures connect to the ground and transmit loads through their foundations, and how those foundations need to provide a high bearing...
Crash Course
Cheese, Catastrophes, & Process Control: Crash Course Engineering #25
Engineering, like life, could really use a lot more cheese. This week we are looking at a cheese factory in Toronto and what it can teach us about process control systems. We’ll explore feedforward and feedback systems, and see how...
TED Talks
Kelly Wanser: Emergency medicine for our climate fever
As we recklessly warm the planet by pumping greenhouse gases into the atmosphere, some industrial emissions also produce particles that reflect sunshine back into space, putting a check on global warming that we're only starting to...
TED Talks
Matt Mills: Image recognition that triggers augmented reality
Matt Mills and Tamara Roukaerts demonstrate Aurasma, a new augmented reality tool that can seamlessly animate the world as seen through a smartphone. Going beyond previous augmented reality, their "auras" can do everything from making a...
TED Talks
Hadyn Parry: Re-engineering mosquitos to fight disease
In a single year, there are 200-300 million cases of malaria and 50-100 million cases of dengue fever worldwide. So: Why haven't we found a way to effectively kill mosquitos yet? Hadyn Parry presents a fascinating solution: genetically...
TED-Ed
TED-Ed: The treadmill's dark and twisted past - Conor Heffernan
The constant thud underneath your feet. The constrained space. The monotony of going nowhere fast. Running on a treadmill can certainly feel like torture, but did you know it was originally used for that very purpose? Conor Heffernan...
MinutePhysics
Cómo superar la velocidad de la luz
¡Puedes superar la velocidad de la luz en el patio de tu casa! (Pero no te preocupes, Einstein sigue estando en lo cierto) MinutoDeFísica proporciona una visión energética y entretenida para los viejos y nuevos problemas de la física --...
TED Talks
TED: How AI could empower any business | Andrew Ng
Expensive to build and often needing highly skilled engineers to maintain, artificial intelligence systems generally only pay off for large tech companies with vast amounts of data. But what if your local pizza shop could use AI to...
TED Talks
TED: The taboo secret to better health | Molly Winter
Our poop and pee have superpowers, but for the most part we don't harness them. Molly Winter faces down our squeamishness and asks us to see what goes down the toilet as a resource, one that can help fight climate change, spur innovation...
TED Talks
Amos Winter: The cheap all-terrain wheelchair
How do you build a wheelchair ready to blaze through mud and sand, all for under $200? MIT engineer Amos Winter guides us through the mechanics of an all-terrain wheelchair that's cheap and easy to build -- for true accessibility -- and...
Crash Course Kids
A Case of 'What-Ifs'
Variables: What are they? In the case of engineering, variables are a condition or value that can change. Sometimes we control a variable, sometimes we don't. In this episode of Crash Course Kids, Sabrina chats to us about how variables...
TED Talks
Janet Echelman: Taking imagination seriously
Janet Echelman found her true voice as an artist when her paints went missing -- which forced her to look to an unorthodox new art material. Now she makes billowing, flowing, building-sized sculpture with a surprisingly geeky edge. A...
TED-Ed
TED-ED: How small are we in the scale of the universe? - Alex Hofeldt
In 1995, scientists pointed the Hubble Telescope at an area of the sky near the Big Dipper. The location was apparently empty, and the whole endeavor was risky _ what, if anything, was going to show up? But what came back was nothing...
SciShow
The Leviathan of Parsonstown
In the 1800s, William Parsons built a telescope larger than any in the world: The Leviathan of Parsonstown. This landmark in science history helped solve the mystery of just what a nebula could be.
TED Talks
TED: How I built a jet suit | Richard Browning
We've all dreamed of flying -- but for Richard Browning, flight is an obsession. He's built an Iron Man-like suit that leans on an elegant collaboration of mind, body and technology, bringing science fiction dreams a little closer to...