PBS
Why Climate Change Is An 'All-Encompassing Threat'
Although a candidate just entered the 2020 presidential race with a platform centered on climate change, some experts say Americans aren't fully aware of the scope and seriousness of global warming. Among them is David Wallace-Wells, who...
PBS
Meet a robot offering care and companionship to seniors
In our NewsHour Shares moment of the day, a Northern Virginia startup is using new technology and a sense of humor to care for the elderly. The NewsHour's Teresa Carey reports.
PBS
Poetry helps youth at a juvenile detention center find peace
Free Write Jail Arts and Literacy aims to help troubled youths in Chicago's Cook County Juvenile Temporary Detention Center address their personal issues by writing poetry about their circumstances and upbringing. Jeffrey Brown talks...
PBS
India's Effort To Clean Up Sacred But Polluted Ganga River
The Ganga River, known as the Ganges under British rule, is one of the most revered waterways in the world -- and also among the most polluted. Stretching from the Himalayan foothills to the Bay of Bengal, it provides water to nearly...
PBS
Poet Sherman Alexie Talks 'Faces' & 'War Dances' (Oct. 22, 2009)
Author Sherman Alexie talks about his new book of poetry called "Faces" and his new short story collection, "War Dances."
PBS
Could the Electoral college system ever change?
President-Elect Donald Trump captured the White House by winning the Electoral College, even as Hillary Clinton won about half a million votes more than Trump. In response, some are calling for a national popular vote to decide the...
PBS
Christopher Curtis, Newberry Award Winner for 'Bud, Not Buddy' (Feb. 18, 2000)
Christopher Curtis, Newberry Award winner for "Bud, Not Buddy" (Feb. 18, 2000) (Author Interview)
PBS
Ruby Bridges
In 1960, 6-year-old Ruby Bridges became the first African American child to desegregate an elementary school. Thirty-seven years later, Ruby Bridges Hall discusses her memories of the first day she entered her new school in New Orleans,...
PBS
Poet Amanda Gorman On How She Prepared For Inauguration Day
The poet who will carry on a tradition and present her new work, "The Hill We Climb" at the inauguration this week is already quite accomplished at the age of 22. Jeffrey Brown talked to Amanda Gorman to learn more, as part of our...
PBS
This graphic novelist and reaing ambassador tells kids to reach beyond their comfort zone
Graphic novelist Gene Luen Yang wrestled with his identity growing up, but he̥s made the Chinese-American experience one of the main subjects of his critically acclaimed work. One of this year̥s MacArthur Fellowship winners and the...
PBS
Why You Should Be Proud Of Your Ethnic Name
Filmed before the Georgia shootings, writer Te-Ping Chen shares with us her "Humble Opinion" that people with ethic names must embrace them instead of shying away. Chen, who says she was given a "boy's name" at birth, looks back on how...
PBS
This Ancient Whistling Language Is In Grave Danger Of Dying Out
In the Greek island village of Antio, home to the world's most endangered
language, aging residents communicate across hillsides through whistles, a
specific system of communication believed to date back to Ancient Greece.
Special...
PBS
What Quality Do The Most Successful People Share? True Grit
What makes a person successful? For Professor Angela Duckworth, the answer
is grit, an intangible trait that motivates passion and perseverance. In a
study at West Point, Duckworth found that grit mattered more for success
than...
PBS
Why String Theory is Right
Some see string theory as the one great hope for a theory of everything - that it will unite quantum mechanics and gravity and so unify all of physics into one glorious theory.
PBS
What Survives Inside A Black Hole?
Black holes are the result of absolute gravitational collapse of a massive body: a point of hypothetical infinite density surrounded by an event horizon. At that horizon time is frozen and the fabric of space itself cascades inwards at...
PBS
Time Crystals!
In this episode of the Space Time Journal Club Matt discusses how two independent research teams created their own Time Crystals, a form of matter that breaks time translational symmetry and could be used in quantum computers.
PBS
A Breakthrough in Higher Dimensional Spheres
Higher dimensional spheres, or hyperspheres, are counter-intuitive and almost impossible to visualize. Mathematician Kelsey Houston-Edwards explains higher dimensional spheres and how recent revelations in sphere packing have exposed...
PBS
Horizon Radiation
Learn about Horizon radiation and why it's essential for us to understand as we continue our journey towards the Unruh Effect and Hawking Radiation.
PBS
Feynman's Infinite Quantum Paths
There is a fundamental limit to the knowability of the universe. The Heisenberg uncertainty principle tells us that the more precisely we try to define one property, the less definable is its counterpart. Knowing a particle's location...
PBS
The Geometry of Causality
Using geometry we can not only understand, but visualize how causality dictates the order of events in our universe.
PBS
Quantum Gravity and the Hardest Problem in Physics
Between them, general relativity and quantum mechanics seem to describe all of observable reality.
PBS
Reversing Entropy with Maxwell's Demon
The second law of thermodynamics - the law that entropy must, on average, increase - has been interpreted as the inevitability of the decay of structure. This is .... misleading. Structure can develop in one region even as the entropy of...