TED Talks
Joe Smith: How to use a paper towel
You use paper towels to dry your hands every day, but chances are, you're doing it wrong. In this enlightening and funny short talk, Joe Smith reveals the trick to perfect paper towel technique.
Bozeman Science
Homeostasis Hugs
Paul Andersen explains how hugs between tissues can help maintain homeostasis. Countercurrent heat exchange allows heat to stay within the core of the body. Close contacts between the capillaries and alveoli allow our body to maintain...
Bozeman Science
LS4C - Adaptation
In this video Paul Andersen defines adaptations and explains how organisms can become better adapted to their surroundings using the process of natural selection. Specific examples of adaptations, like coat color in rock pocket mice, as...
TED Talks
TED: Why it's too hard to start a business in Africa -- and how to change it | Magatte Wade
Many African countries are poor for a simple reason, says entrepreneur Magatte Wade: governments have created far too many obstacles to starting and running a business. In this passionate talk, Wade breaks down the challenges of doing...
TED Talks
Ajit Narayanan: A word game to communicate in any language
While working with kids who have trouble speaking, Ajit Narayanan sketched out a way to think about language in pictures, to relate words and concepts in "maps." The idea now powers the FreeSpeech app, which can help nonverbal people...
SciShow
The Stroop Task: The Psych Test You Cannot Beat
The task sounds like it should be pretty easy, but the Stroop task is a fantastic, and very well studied, example of how your brain’s automatic processing can trip you up!
Crash Course
Asian Responses to Imperialism: Crash Course World History
In which John Green teaches you about Imperialism, but not from the perspective of the colonizers. This week John looks at some Asian perspectives on Imperialism, specifically writers from countries that were colonized by European...
Bozeman Science
Protists
Paul Andersen surveys organisms in the protists. He reviews the diversity found within the domain Eukarya and explains that the Kindgom Protista is simple a junk drawer for organisms that don't fit elsewhere.
Bozeman Science
Populations
Paul Andersen explains how populations interact in an ecosystem. The symbiosis of several populations is based on effects that may be neutral, positive, or negative. Interactions like mutualism, commensalism and parasitism are included....
TED-Ed
TED-ED: How interpreters juggle two languages at once - Ewandro Magalhaes
Language is complex, and when abstract or nuanced concepts get lost in translation, the consequences may be catastrophic. Given the complexities of language and cultural exchange, how do these epic miscommunications not happen all the...
Bozeman Science
Law of Superposition
Mr. Andersen explains the law of superposition and the principle of original horizontality. He uses an animation to explain how rock layers can accumulate over time.
Bozeman Science
Heat Exchange
In this video Paul Andersen explains how energy can be transferred from warmer objects to colder objects through heat. Temperature is a measure of the average kinetic energy of the particles in a substance. When two objects are in...
Bozeman Science
Bond Length and Bond Energy
In this video Paul Andersen explains how the bond length and bond energy are calculated using an energy distance graph. The strength of the bond is determined by the charges in the constituent atoms. As the charge increases the bond...
TED Talks
Werner Reich: How the magic of kindness helped me survive the Holocaust
Holocaust survivor Werner Reich recounts his harrowing adolescence as a prisoner transported between concentration camps -- and shares how a small, kind act can inspire a lifetime of compassion. "If you ever know somebody who needs help,...
SciShow
Why Haven't We Built a Better Battery?
Improving batteries is a tough problem, but it’s also an important one because in many ways the future of our planet also depends on the future of batteries. Luckily, scientists are on the case, figuring out ways to give this essential...
Bozeman Science
Harmonics
In this video Paul Andersen explains how the wavelength of a standing wave is determined by the boundary length and frequency of the wave. The fundamental frequency has a wavelength double the boundary length. Harmonics are built on the...
TED-Ed
TED-ED: Can you solve the three gods riddle? - Alex Gendler
You and your team have crash-landed on an ancient planet. Can you appease the three alien overlords who rule it and get your team safely home? Created by logician Raymond Smullyan, and popularized by his colleague George Boolos, this...
TED Talks
Alix Generous: How I learned to communicate my inner life with Asperger's
Alix Generous is a young woman with a million and one ideas -- she's done award-winning science, helped develop new technology and tells a darn good joke (you'll see). She has Asperger's, a form of autistic spectrum disorder that can...
SciShow
Dark Matter Is Even Stranger Than We Thought | SciShow News
Scientists can see how dark matter is distributed based on how its gravity affects light, but when astronomers compared recent data from the Hubble Space Telescope and the Very Large Telescope to current models, something didn’t add up....
Bozeman Science
Chemical Change
In this video Paul Andersen explains how chemical differs from physical change. In the laboratory macroscopic observations are used to infer changes at the particulate level. Evidence for chemical change include gas production, change in...
TED-Ed
TED-ED: How to prove a mathematical theory - Scott Kennedy
Euclid of Alexandria revolutionized the way that mathematics is written, presented or thought about, and introduced the concept of mathematical proofs. Discover what it takes to move from a loose theory or idea to a universally...
TED Talks
TED: Why I fight for climate justice | Xiye Bastida
In a deeply moving letter to her grandmother, Xiye Bastida reflects on what led her to become a leading voice for global climate activism -- from mobilizing school climate strikes to speaking at the United Nations Climate Summit...
Bozeman Science
Periodicity
In this video Paul Andersen explains why atoms in the periodic table show trends in ionization energy, atomic radii, electronegativity and charge. All of these trends are explained through Coulomb's Law. A brief description of Dmitri...
SciShow
How Harry Potter Turns You Into A Wizard
Have you ever read Harry Potter and wished that you were a student at Hogwarts, studying magic with Harry, Ron, and Hermione? Well, your wish might have partially come true, without you knowing it.