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.
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]
Imagine something small enough to float on a particle of dust that holds the keys to understanding cancer, virology, and genetics. Luckily for us, such a thing exists in the form of trillions upon trillions of human, lab-grown cells called HeLa. But where did we get these cells? Robin Bulleri tells the story of Henrietta Lacks, a woman whose DNA led to countless cures, patents, and discoveries. [4:26]
Video that describes the types of codes that media and advertisements use to affect the way that people think, act, and feel. [6:00] Followed by a short quiz and a list of additional resources to explore.
What can mathematics say about history? From changes to language to the deadliness of wars, Jean-Baptiste Michel shows how digitized history is just starting to reveal deep underlying patterns. [4:26]
Cells are almost like tiny factories run by robots, with the nucleus, DNA, proteins, lipids, and vitamins and minerals all playing critical roles. George Zaidan and Charles Morton lay out the blueprint of a cell and explain how biochemistry binds all life together. [4:01]
Michael Molina discusses the catalysts and consequences of continental drift. [4:25]