PBS
Making Probability Mathematical
What happened when a gambler asked for help from a mathematician? The formal study of Probability.
TED Talks
TED: A roadmap for young changemakers | Melati Wijsen
Activism is a tough job, especially for young people yearning for immediate change -- something climate activist Melati Wijsen has learned over ten years of pushing for environmental protection, starting at age 12 in her home on the...
SciShow
Kickstarting a Space Telescope
In the past few years the rise of crowdfunding has allowed for some pretty cool stuff to start existing, and today Hank is excited to announce another awesome Kickstarter - Planetary Resources (of asteroid mining fame) in partnership...
Bozeman Science
AP Biology Practice 6 - Scientific Explanations and Theories
In this video Paul Andersen explains how scientific theories are created and modified over time. He starts by discussing the theory of natural selection as a model for the creation and modification of theories. He gives examples of...
Crash Course
The Big Bang Crash Course Big History 1
In which John Green, Hank Green, and Emily Graslie teach you about, well, everything. Big History is the history of everything. We're going to start with the Big Bang, take you right through all of history (recorded and otherwise), and...
Crash Course
Test Anxiety: Crash Course Study Skills
Exams can be terrifying. It's easy to feel like the weight of the world rests in these moments - like this one test determines your grades and, in turn, your whole future - even if you know, rationally, that this isn't really the case....
Bozeman Science
PS1B - Chemical Reactions
In this video Paul Andersen explains how chemical reactions progress as bonds are broken and reformed reformed. He explains the difference between changes in state and changes in molecules. He discussed collision theory and explains why...
Bozeman Science
Global Climate Change
In this video Paul Andersen explains how the climate on the earth is affected by the amount of solar radiation and the greenhouse affect. The addition of anthropogenic greenhouse gases has led to global warming which is impacting humans...
TED Talks
TED: Why are stolen African artifacts still in Western museums? | Jim Chuchu
African artifacts shown in museums worldwide are often not borrowed, but stolen -- and TED Fellow Jim Chuchu is on a mission to get them back. Learn the sordid history behind how many of the collections in the West came to be, Chuchu's...
Crash Course
Heredity: Crash Course Biology
Hank and his brother John discuss heredity via the gross example of relative ear wax moistness.
SciShow
How Chronic Stress Harms Your Body
We can’t avoid having stress, and that’s not always a bad thing. But if you are dealing with a lot of stress every day, it might cause you physical harm.
Bozeman Science
Physical and Chemical Changes
Mr. Andersen explains the difference between physical and chemical changes. A brief discussion of chemical reactions and equations is also included.
Bozeman Science
Homeostasis Preview
Paul Andersen reviews the major components of the homeostasis. He explains how organisms respond to abiotic and biotic factors in their environment with feedback loops. He shows how responses can be behavioral or physiological.
TED Talks
TED: This is your brain on communication | uri Hasson
Neuroscientist uri Hasson researches the basis of human communication, and experiments from his lab reveal that even across different languages, our brains show similar activity, or become "aligned," when we hear the same idea or story....
Bozeman Science
LS1C - Matter and Energy Flow in Organisms
Sustaining life requires substantial energy and matter inputs. The complex struc- tural organization of organisms accommodates the capture, transformation, trans- port, release, and elimination of the matter and energy needed to sustain...
Crash Course
How to Build Customer Relationships: Crash Course Entrepreneurship
Like any committed relationship, the relationship between a business and its customers needs nurturing. And that shouldn’t come as a surprise! We need customers to run a successful business, and naturally they’re going to have certain...
TED Talks
TED: Why I make robots the size of a grain of rice | Sarah Bergbreiter
By studying the movement and bodies of insects such as ants, Sarah Bergbreiter and her team build incredibly robust, super teeny, mechanical versions of creepy crawlies … and then they add rockets. See their jaw-dropping developments in...
TED Talks
Jay Walker: The world's English mania
Jay Walker explains why two billion people around the world are trying to learn English. He shares photos and spine-tingling audio of Chinese students rehearsing English -- "the world's second language" -- by the thousands.
Bozeman Science
Drawing Lewis Dot Diagrams
Mr. Andersen shows you how to draw Lewis Dot Diagrams for atoms and simple molecules.
SciShow
Mars Colony Plans
Hank is all about Mars, and Elon Musk, the founder of SpaceX, has some plans for colonizing the Red Planet that have got Hank very excited.
Bozeman Science
What is Cancer?
In this video Paul Andersen answers the very simple question: What is cancer? He explains how damage to the DNA can create uncontrolled cell growth. He explains how malignant tumors can spread the disease throughout the body and gives...
TED Talks
Alexander Tsiaras: Conception to birth -- visualized
Image-maker Alexander Tsiaras shares a powerful medical visualization, showing human development from conception to birth and beyond. (Some graphic images.)
SciShow Kids
Sink or Float?
Join Jessi and some new friends for an experiment to see what sinks, and what floats!
TED Talks
Mathieu Lehanneur: Science-inspired design
Naming science as his chief inspiration, Mathieu Lehanneur shows a selection of his ingenious designs -- an interactive noise-neutralizing ball, an antibiotic course in one layered pill, asthma treatment that reminds kids to take it, a...