NASA
NASA | A Flickering X-ray Candle
The Crab Nebula, created by a supernova seen nearly a thousand years ago, is one of the sky's most famous "star wrecks." For decades, most astronomers have regarded it as the steadiest beacon at X-ray energies, but data from orbiting...
WYPR
Harriet Tubman's Birthplace
Harriet Tubman was born into slavery in Maryland. She escaped and came back to lead hundreds of enslaved people to New York and Canada along the route of the Underground Railroad. She was also a spy for the United States Army during the...
TLDR News
China’s Hidden Concentration Camps: How China Imprisoned Millions of Uighurs - TLDR News
We investigate the concentration camps spreading through China's Xinjiang province and the history of China's relationship with its Uighur population.
Curated Video
Partitioning Shapes into Equal Shares: Understanding Fraction Sizes
In this video lesson, students learn how to describe fractions of shapes by partitioning them into equal shares. The teacher emphasizes that the size of the fraction depends not only on the number of shares but also on the size of the...
APMonitor
Solve Linear Equations with Excel
Excel MMULT and MINVERSE functions are used to solve systems of linear equations such as A * x = b by inverting A and multiplying by the right hand side (x = A^-1 * b).
PBS
Why is there a North and South Korea?
While the short answer is the Korean war, the reality is that seeds for the separate Republic of Korea and Democratic People's Republic of Korea goes back much further and has to do with the late 19th century Chinese imperialism and the...
AllTime 10s
10 Most Polluted Places On Earth
We normally hear about pollution in terms of global impact, but there are places that feel the brunt of human activity much, much more than others. Here are the 10 most polluted places on earth.
Kult America
What Does Middle East Really Look Like?
In this episode of Kult America, we explore my first impressions of the middle eastern country of Qatar. Having spent 4 days in Doha, I found that as is the case in most places people are people. I was not approached or harassed by...
The Noted Anatomist
Sensation of the face
This brief video tutorial discusses the cutaneous innervation of the face via the trigeminal nerve (CN V).
Curated Video
Peru, Ollantaytambo archaeological site
Around the mid-15th century, the Inca emperor Pachacuti conquered and razed Ollantaytambo; the town and the nearby region were incorporated into his personal estate.The emperor rebuilt the town with sumptuous constructions and undertook...
Curated Video
Graphing Linear Inequalities with Greater Than or Greater Than or Equal to Symbols
In this video, the teacher explains how to graph linear inequalities with greater than or greater than or equal to symbols. They demonstrate the process of finding solutions and plotting them on a coordinate plane, while also explaining...
Mediacorp
Conservation Efforts in the Verde Island Passage
This video focuses on the conservation efforts in the Philippines to ensure the survival of the ecosystem.
The Heart of ASEAN: episode 4, part 10/11
Curated Video
Exploring the Oort Cloud: What Lies Beyond Our Solar System
This video provides an overview of the Oort Cloud, a theoretical region located beyond our solar system and the Kuiper Belt. The video discusses the origins of the Oort Cloud, its spherical shape, and the potential disruption of its icy...
Jabzy
Jagermeister and the Nazis - Stuff That I Find Interesting
In this video, Jabzy brings us historical tidbits and unknown facts about Jagermeister and the Nazis
Mediacorp
Hydropower Showdown on the Brahmaputra River
This video discusses the positive impact of man-made interventions on the Brahmaputra River, particularly the construction of dams by India and China. The video also highlights the consequences of these changes, such as floods, erosion,...
Let's Tute
Understanding Water Scarcity: Causes and Indicators
The video discusses the issue of water scarcity and its causes, particularly in India. It explains the different types of water scarcity and the indicators of a country facing water scarcity. The video also touches on the impact of...
Math Fortress
Calculus III: Three Dimensional Coordinate Systems (Level 10 of 10)
This video concludes the exploration of a three dimensional Cartesian coordinate system. This video covers 2 examples illustrating the appropriate way of graphing equations in three dimensional space that are restricted to a given...
Professor Dave Explains
How to Make Black Holes (Both Regular and Supermassive)
We've learned about the lifetime of stars, and we saw that very high mass stars will leave behind a black hole when they die. What else can we say about black holes? Is there any other way to make a black hole besides waiting for a huge...
Professor Dave Explains
The Quantum Harmonic Oscillator Part 3: Interpretation and Application
With the Schrödinger equation for the quantum harmonic oscillator solved, we are ready to analyze and interpret our results. What can we learn from the probability density function? How does the probability of finding a quantum particle...
Step Back History
How Did the Wild West Become Myth?
With Westworld coming back this weekend, I wanted to make a video to talk about some myths we commonly hold about the wild west.
Curated Video
Malitzen: Enslaved Interpreter for Hernan Cortés
The enslaved Native woman who acted as the primary interpreter for Hernan Cortés during his conquest of the Aztec Empire.
Curated Video
Introduction to Thermal Radiation and Material Surfaces as Absorbers and Emitters
This video is about thermal radiation and how thermal energy is transferred by infrared radiation. The video also explains how different surfaces absorb and emit infrared radiation and their effect on the transfer of thermal energy. The...
Schooling Online
Nailing Non-fiction: I Am Malala - Prologue & Part 1 Summary: Before the Taliban (Chapters 1-8)
On the 9th of October 2012, 15-year-old Malala Yousafzai was shot in the head by a Taliban terrorist. But this is only part of her incredible story, which deserves to be told from the very beginning. Join us for the first part of...