PBS
How Big are All Infinities Combined? (Cantor's Paradox)
Infinities come in different sizes. There's a whole tower of progressively larger "sizes of infinity". So what's the right way to describe the size of the whole tower?
TED Talks
Shai Reshef: An ultra-low-cost college degree
At the online University of the People, anyone with a high school diploma can take classes toward a degree in business administration or computer science — without standard tuition fees (though exams cost money). Founder Shai Reshef...
TED Talks
TED: Do kids think of sperm donors as family? | Veerle Provoost
How do we define a parent -- or a family? Bioethicist Veerle Provoost explores these questions in the context of non-traditional families, ones brought together by adoption, second marriages, surrogate mothers and sperm donations. In...
Crash Course
The Montgomery Bus Boycott: Crash Course Black American History
For 381 days in 1955 and 1956, the Black citizens of Montgomery, Alabama boycotted the city bus system. Black riders had been mistreated on public transit all over the country for decades, and the national coverage of the Montgomery Bus...
TED-Ed
TED-ED: Why is glass transparent? - Mark Miodownik
If you look through your glasses, binoculars or a window, you see the world on the other side. How is it that something so solid can be so invisible? Mark Miodownik melts the scientific secret behind amorphous solids.
Crash Course
The Spanish Golden Age: Crash Course Theater #19
This week on Crash Course Theater, Mike and Yorick take us to beautiful Spain, and look at its Golden Age. Spain was having kind of a moment in the 16th and 17th centuries. They had this big empire, the culture was really flowering, and...
PBS
A Hierarchy of Infinities
There are different sizes of infinity. It turns out that some are larger than others. Mathematician Kelsey Houston-Edwards breaks down what these different sizes are and where they belong in The Hierarchy of Infinities.
SciShow Kids
How to Build a Pillow Fort!
Learn how to build a pillow fort with the help of the force called compression. Just save some room for us!
Wonderscape
What is the Universal Disability Access Symbol?
The universal disability access symbol is an icon recognized globally to indicate accessible facilities for individuals with disabilities. This symbol is commonly found in parking lots, public transportation, and restrooms, signaling...
Curated Video
The A380: The World's Biggest Jetliner Takes Flight
The video discusses the unveiling of the Airbus A380, the world's largest jetliner, and its potential impact on the aviation industry. It highlights the growing demand for long-haul flights and the belief that giant planes like the A380...
Curated Video
A New Life for Old Theaters as Multi-Use Spaces
The Art House Convergence has become a vital resource for community-based, mission-driven cinemas, fostering a renewed appreciation for independent theaters. Over the past decade, there has been a resurgence in the number of these...
Wonderscape
Obstacles to Black Voting Rights in U.S. History
This video explores the history of voter suppression tactics used against Black voters in the United States, from the Three-Fifths Compromise to Jim Crow laws, poll taxes, and literacy tests. Learn about the barriers Black voters faced...
Wonderscape
Coretta Scott King’s Early Life with Martin Luther King Jr.
This video explores Coretta Scott King’s early life with Martin Luther King Jr., from their move to Montgomery, Alabama, to their involvement in the Montgomery Bus Boycott. It highlights Coretta’s role in supporting the boycott and...
Wonderscape
The Early Life of Dr. Martin Luther King Jr.
This video explores the early life of Dr. Martin Luther King Jr., from his birth as Michael King to his education and development as a leader. Learn about the impact of segregation laws, his dedication to peaceful protest, and his...
Wonderscape
Exploring Types of Waves: Transverse and Longitudinal
Learn about the different types of waves, including transverse and longitudinal waves. Understand how these waves move through different mediums and their properties. Discover the speed of sound and how it varies depending on the medium....
Curated Video
A Detailed Guide to the OWASP Top 10 - API6:2023 Unrestricted Access to Sensitive Business Flows
In this video, discuss the risks and consequences of having unrestricted access to sensitive business flows in APIs.
Curated Video
A Detailed Guide to the OWASP Top 10 - #4 Insecure Design
This video explains the A04: 2021 - insecure design, which focuses on risks related to design and architectural flaws.
Curated Video
The Absolute Beginners Guide to Cybersecurity 2023 - Part 4 - HTTP and HTTPS
In this video, you will learn the difference between HTTP and HTTPS by looking at two different websites. This clip is from the chapter "Internet and Browsing Security" of the series "The Absolute Beginners Guide to Cybersecurity 2023 -...
Curated Video
Do You Have Enough Information?
Mr. Addit explains that it is impossible to solve a word problem if it does not provide enough information. He models how to determine if a word problem provides enough information to solve.
Wonderscape
Rosa Parks: The Arrest that Sparked a Movement
This video recounts the pivotal moment in 1955 when Rosa Parks was arrested for refusing to give up her seat on a segregated bus in Montgomery, Alabama. It describes her decision-making process, the subsequent NAACP lawsuit, and the...
Curated Video
Inside the Airbus A380: A Glimpse into the Future of Air Travel
Explore the future of air travel with the Airbus A380 model cabin, featuring luxury seating pods, intimate dining areas, and comfy beds for a relaxing journey. With its innovative design, including straight side walls and wider seats,...
Curated Video
Bologna Motor Show: Showcasing Italy's Passion for Cars and Motorbikes
The Bologna Motor Show is an annual event in Italy that showcases the passion for cars and motorbikes in the country. It attracts major car companies from around the world and features product previews, test drives, and displays. From...
The Guardian
Coffee Shop Algebra: Optimizing Seating for Efficient Service
Explore a real world example of how to use algebra to solve how many chairs a coffee shop needs. In this video, math instructor Jonny Heeley leads students through an interactive simulation to understand how we can use albegra to divide...
Hip Hughes History
5 Things You Should Know About Midterm Elections
With the 2018 Midterm Elections fast approaching it may be wise to review some important ideas. Here are five political science themes that will help you understand these important events in our history.