Eric Rosado discusses the key people and discoveries having to do with the periodic table that have molded our understanding of chemistry today. [4:19]
What is everything made of? Thus far, we can break everything in the universe down to a few very small elementary particles. But they fit into strange patterns that are not understood. Clifford Johnson describes these ideas, along with the concept of string theory. [7:53]
It takes light a zippy eight minutes to reach Earth from the surface of the Sun. But how long does it take that same light to travel from the Sun's core to its surface? Oddly enough, the answer is many thousands of years. Sten Odenwald explains why by illustrating the random walk problem. [4:37]
Video explores the interdependence of two species to define the concept of symbiosis. [2:23] Followed by a short quiz and a list of additional resources to explore.
The Earth is 4.6 billion years old- but how can humans relate to a number so colossal, and where do we fit on the geologic timeline? Joshua Sneideman reminds us of our time and place in the universe. [3:45]
Lesson in which students learn about the origins of the Constitution and Bill of Rights through informative and animated video [4:32] written by educator James Coll.
Enter the depths of the ocean to see actual footage of several amazing sea creatures, and witness animal survival behaviors unseen by casual observers. [5:25]
We live in a world run by algorithms, computer programs that make decisions or solve problems for us. In this riveting, funny talk, Kevin Slavin shows how modern algorithms determine stock prices, espionage tactics, even the movies you watch. But, he asks: If we depend on complex algorithms to manage our daily decisions- when do we start to lose control? [15:07]
Stress. It makes your heart pound, your breathing quicken and your forehead sweat. But while stress has been made into a public health enemy, new research suggests that stress may only be bad for you if you believe that to be the case. Psychologist Kelly McGonigal urges us to see stress as a positive, and introduces us to an unsung mechanism for stress reduction: reaching out to others. [14:28]
How do we know what matter is made of? The quest for the atom has been a long one, beginning 2,400 years ago with the work of a Greek philosopher and later continued by a Quaker and a few Nobel Prize-winning scientists. Theresa Doud details the history of atomic theory. [5:22]
In this video, Brian Bennett defines Boyle's Law, Charles' Law, and Avogadro's Law to help describe the properties of gas. [2:50] Followed by a short quiz and a list of additional resources to explore.
How do metaphors help us better understand the world? What makes a good metaphor? Explore these questions in this video with writers like Langston Hughes and Carl Sandburg, who have mastered the art of bringing a scene or emotion to life. Free registration is required to have full access to these lessons.
Video talks about the carbon cycle and uses a computer as a metaphor to show how the cycle can be disrupted by climate change. [3:55] Includes a short quiz and a list of additional resources to explore.
Have we used up all our resources? Have we filled up all the livable space on Earth? Paul Gilding suggests we have, and the possibility of devastating consequences, in a talk that's equal parts terrifying and, oddly, hopeful. [16:47]
The first step in the financial aid process is the "Free Application for Federal Student Aid" or "FAFSA". The FAFSA can seem like a very confusing application to complete, but this video lesson will take you through everything you need to know, step-by-step. [9:49]
In this third and final lesson, CERN scientists Andrew Pontzen and Tom Whyntie explore what gravity means for space-time- or rather, what space-time means for gravity. [3:27]
Video explains why the periodic table devised by Dmitri Mendeleev has endured and how it has predicted the existence of elements. [4:25] Followed by a short quiz and a list of additional resources to explore.
Throughout history, scientists have proposed conflicting ideas on how the brain carries out functions like perception, memory, and movement. Is each of these tasks carried out by a specific area of the brain? Or do multiple areas work together to accomplish them? Ted Altschuler investigates both sides of the debate. [5:20]
What is fiber optics and how does it work? Sajan Saini explores the vital technology.
Backed by stunning illustrations, David Christian narrates a complete history of the universe, from the Big Bang to the Internet, in a riveting 18 minutes. [17:40]