TED Talks
Asmeret Asefaw Berhe: A climate change solution that's right under our feet
There's two times more carbon in the earth's soil than in all of its vegetation and the atmosphere -- combined. Biogeochemist Asmeret Asefaw Berhe dives into the science of soil and shares how we could use its awesome carbon-trapping...
Crash Course
Population & Food: Crash Course Geography
Today we’re going to talk about the link between population and food energy. As the world's population keeps growing, finding ways to provide enough food and water for everyone while supporting a sustainable environment can be tricky!...
Crash Course
How Populations Grow and Change: Crash Course Geography
Is the world overpopulated or underpopulated? While we worry about there being too many people for the planet to support, we can also worry about how fewer people in a given place may affect the economy, what may happen when there are...
Crash Course
Flirting With Disaster - The Importance of Safety: Crash Course Engineering #28
As engineer, sometimes lives will be in your hands, so this week we’re exploring safety and its impact on engineering. We’ll discuss the difference between occupational safety and public safety and how to analyze and review a process for...
Crash Course
Supply and Demand: Crash Course Economics
In which Adriene Hill and Jacob Clifford teach you about one of the fundamental economic ideas, supply and demand. What is supply and demand? Well, you'll have to watch the video to really understand it, but it's kind of important for...
Curated Video
Human Population Growth - Crash Course Ecology
If being alive on Earth were a contest, humans would win it hands down. We're like the Michael Phelps of being alive, but with 250,000 times more gold medals. Today Hank is here to tell us the specifics of why and how human population...
Crash Course
Intro to Economics: Crash Course Econ
In which Jacob Clifford and Adriene Hill launch a brand new Crash Course on Economics! So, what is economics? Good question. It's not necessarily about money, or stock markets, or trade. It's about people and choices. What, you may ask,...
TED Talks
Mae Jemison: Teach arts and sciences together
Mae Jemison is an astronaut, a doctor, an art collector, a dancer ... Telling stories from her own education and from her time in space, she calls on educators to teach both the arts and sciences, both intuition and logic, as one -- to...
Crash Course
Congo and Africa's World War: Crash Course World History 221
In which John Green teaches you about the Democratic Republic of the Congo, which used to be Zaire, which used to be The Belgian Congo, which used to be the Congo Free State, which used to be the region surrounding the Congo River Basin...
Crash Course
How Does the Healthcare System Work During Outbreaks? Crash Course Outbreak Science
Day to day, hospitals provide all kinds of services to help us get better and stay healthy, but during an outbreak, hospitals are the front line of the emergency. In this episode of Crash Course Outbreak Science, we'll look at how...
Crash Course
The Core of a Business - Key Activities & Resources: Crash Course Business Entrepreneurship
When someone says they’re “studying business” or they “work in business,” they could mean so many different things. They could be in marketing, sales, finance or human resources. So much goes into keeping a company running smoothly.
Crash Course
Community Ecology: Feel the Love - Crash Course Ecology
Interactions between species are what define ecological communities, and community ecology studies these interactions anywhere they take place. Although interspecies interactions are mostly competitive, competition is pretty dangerous,...
Bozeman Science
ESS3A - Natural Resources
In this video Paul Andersen explains how the resources required for survival come from the Earth. The resources are not evenly distributed on the planet and neither are the humans. According to the NGSS we need to limit the use of...
Crash Course
Crash Course Outbreak Science Preview
Welcome to Crash Course Outbreak Science! What do pathogens actually do to us that makes us sick? Why do societies respond to outbreaks of infectious diseases the way they do? How can we stop the next outbreak? These are the kinds of...
Crash Course Kids
Who Needs Dirt?
So... do plants need dirt? The truth might shock you. In this episode of Crash Course kids, Sabrina talks about how plants get energy and how that energy is transported around them. Also, she talks about dirt.
SciShow
How Dangerous is COVID-19?
You may have heard several different projections about the fatality rate of COVID-19. How do different health organizations come up with these figures, and why do the numbers seem so fluid?
Crash Course Kids
H2O-NO! - Fresh Water Problems
What happens to a single ecosystem when the amount of freshwater available in it changes? Not really much good. In this episode of Crash Course Kids, Sabrina talks about ecosystems and how one small change can lead to a cascade effect in...
Bozeman Science
ESS3C - Human Impacts on Earth Systems
In this video Paul Andersen explains how humans are impacting the Earth through farming, mining, pollution and climate change. According to the NGSS wise management can reduce impacts on the planet. This will become more important as...
Bozeman Science
Ecosystem Ecology
In this video Paul Andersen explains how ecosystems function. He begins with a description of how life on the planet is ordered from large to small in biomes, ecosystems, communities, population, and individuals. He describes the major...
Professor Dave Explains
Community Ecology and Landscape Ecology
With a better understanding of population ecology, we are ready to zoom out and look at community ecology, which involves interactions between species, as well as landscape ecology, which will broaden our understanding of ecosystems. How...
Curated Video
Why The United States Is SO MUCH LARGER Today Than It Was In 2023
As of January 2024, the United States grew by about 400,000 square miles of territory or larger than the state of Texas. This was done under a little known United Nations policy called the Extended Continental Shelf. So why has the...
Curated Video
Cyber Security for Absolute Beginners - 2022 Edition - Part 02 - Anatomy of a Social Engineering Attack
This video will examine hackers' process of creating an attack using the social engineering technique.
Curated Video
How to Create a Project Organization from the Wider Organizational Structure
In this video, I want to look at the different ways the Project Organization of the Project Manager and their team can be drawn from the wider organization. To do so, I am going to describe five different Project Organization Structures,...