TED-Ed
TED-Ed: Tomás Chor: Turbulence: one of the great unsolved mysteries of physics
You're on an airplane when you feel a sudden jolt. Outside your window nothing seems to be happening, yet the plane continues to rattle you and your fellow passengers as it passes through turbulent air in the atmosphere. What exactly is...
SciShow
Why Do We Stretch in the Morning?
Humans (and our pets) frequently instinctively stretch as soon as we wake up. But why? What is happening in our bodies when we stretch and yawn to wake ourselves up?
Crash Course
Joints: Crash Course A&P
We continue our look at your bones and skeletal system, skipping over the silly kid's song in favor of a more detailed look at your your axial and appendicular skeleton. This episode also talks about the structural and functional...
3Blue1Brown
Binary, Hanoi, and Sierpinski - Part 2 of 2
How counting in Ternary can solve a variant of the Tower's of Hanoi puzzle, and how this gives rise to a beautiful connection to Sierpinski's triangle.
TED Talks
John Gerzema: The post-crisis consumer
John Gerzema says there's an upside to the recent financial crisis -- the opportunity for positive change. In this talk, he identifies four major cultural shifts driving new consumer behavior and shows how businesses are evolving to...
Amoeba Sisters
Diffusion
Explore how substances travel in diffusion with the Amoeba Sisters! This video uses a real life example and mentions concentration gradients, passive transport, facilitated diffusion, and explains why diffusion is critical for all...
Crash Course
Friction: Crash Course Physics
Why is it hard to move a heavy bookcase across a carpeted floor? And why is it easier to keep it moving than it was to get it started moving? You might think it's all about weight, but actually it's about friction. Two kinds of friction!...
SciShow
What's Causing That Stitch in Your Side?
What's the deal with that sharp pain in your side when you're trying to win that marathon? SciShow has the answers!
TED Talks
TED: The long reach of reason | Steven Pinker and Rebecca Newberger Goldstein
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Here's a TED first: an animated Socratic dialog! In a time when irrationality seems to rule both politics and...
TED Talks
TED: Being young and making an impact | Natalie Warne
At 18, Natalie Warne's work with the Invisible Children movement made her a hero for young activists. She uses her inspiring story to remind us that no one is too young to change the world.
SciShow
How Sea Butterflies "Fly" in Water
Birds fly, and fish swim. We learn this when we are children. But not everything in nature is quite so simple… Meet Limacina helicina, an artic-dwelling sea butterfly that flies through the water. Chapters View all SPY IN THE WILD 2 0:04...
TED Talks
TED: The global movement to restore nature's biodiversity | Thomas Crowther
Biodiversity is the key to life on Earth and reviving our damaged planet, says ecologist Thomas Crowther. Sharing the inside story of his headline-making research on reforestation, which led to the UN's viral Trillion Trees Campaign,...
TED-Ed
TED-Ed: The chemistry of cold packs - John Pollard
If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere seconds? John Pollard details the chemistry of the cold pack, shedding...
Crash Course
The 1960s in America Crash Course US History
In which John Green teaches you about a time of relative tumult in the United States, the 1960s. America was changing rapidly in the 1960s, and rights movements were at the forefront of those changes. Civil Rights were dominant, but the...
TED Talks
TED: An interview with the founders of Black Lives Matter | Alicia Garza, Patrisse Cullors and Opal Tometi
Born out of a social media post, the Black Lives Matter movement has sparked discussion about race and inequality across the world. In this spirited conversation with Mia Birdsong, the movement's three founders share what they've learned...
TED Talks
Nalini Nadkarni: Life science in prison
Nalini Nadkarni challenges our perspective on trees and prisons -- she says both can be more dynamic than we think. Through a partnership with the state of Washington, she brings science classes and conservation programs to inmates, with...
TED-Ed
TED-ED: The Pangaea Pop-up - Michael Molina
The supercontinent Pangaea, with its connected South America and Africa, broke apart 200 million years ago. But the continents haven't stopped shifting -- the tectonic plates beneath our feet (in Earth's two top layers, the lithosphere...
TED-Ed
TED-Ed: The historic women’s suffrage march on Washington - Michelle Mehrtens
Explore how the Women’s Suffrage Parade on Washington in 1913 helped women secure the right to vote in the United States through the 19th amendment. -- On March 3, 1913, after months of strategic planning and controversy, thousands of...
Bozeman Science
Electric Charge
In this video Paul Andersen introduces electric charge. Electric charge has been studies by humans and was generalized by scientists such as Benjamin Franklin. The amount of charge in a system is conserved but individual charges can move...
Bozeman Science
AP Biology Lab 1: Diffusion and Osmosis
Paul Andersen starts with a brief description of diffusion and osmosis. He then describes the diffusion demonstration and how molecules move over time. He then explains the concepts behind the osmosis lab and how potatoes are affected...
Crash Course
Motion in a Straight Line: Crash Course Physics
In this, THE FIRST EPISODE of Crash Course Physics, your host Dr. Shini Somara introduces us to the ideas of motion in a straight line. She talks about displacement, acceleration, time, velocity, and the definition of acceleration. Also,...
Crash Course
Muscles, part 2 - Organismal Level: Crash Course A&P
Hank calls in a friend to do his push ups for him today to explain how skeletal muscles work together to create and reverse movements. Hank and Claire also demonstrate the role size plays in motor units, the three phase cycle of muscle...
Bozeman Science
Osmoregulation
Paul Andersen explains how organisms regulate their internal osmolarity or not. He starts with a brief description of osmosis and why it is important for animal cell to be surrounded by an isotonic solution. He then explains how...
Crash Course
Student Civil Rights Activism: Crash Course Black American History
A wide range of Americans contributed to the Civil Rights Movement in the 1950s and 1960s. Students and young people were a prominent group of activists within the movement. Today, we'll learn about the Little Rock Nine, the Greensboro...