Amoeba Sisters
Cell Organelles & Structures: Before the Bell Biology
Time before the bell to try 9 questions on cell organelles and structures? Organelles/structures that are listed here include nucleus, mitochondrion, chloroplast, cell membrane, ribosome, ER, golgi apparatus, vacuole, cytoplasm, and more...
Amoeba Sisters
Human Body Systems: Before the Bell Biology
Time before the bell to try 9 questions focused on human body systems? You'll also get answers complete with illustrations and explanations while music plays in the background. This particular video focuses on general functions and...
Amoeba Sisters
Biomolecules: Before the Bell Biology
Time before the bell to try 9 questions focused on biomolecules? You'll also get answers complete with illustrations and explanations while music plays in the background. This particular video focuses on carbohydrates, lipids, proteins,...
MinutePhysics
Why It's Impossible to Tune a Piano
Pianos can't be perfectly tuned - it's a mathematical fact!
TED-Ed
TED-Ed: This person isn't actually screaming | Noah Charney
An undulating sky melds into the landscape, two silhouettes move along a balustraded walkway, and a ghostly figure’s features extend in agony. Since Norwegian artist Edvard Munch created "The Scream" in 1893, it’s become one of the...
SciShow
Ada Lovelace: Great Minds
Ada Lovelace, Daughter of Lord Byron, was somehow the first author of a computer program...even though she lived more than a century before the first modern computer.
Amoeba Sisters
Before the Bell Biology: DNA Replication
Time before the bell to try 9 questions focused on DNA Replication? You'll also get answers complete with illustrations and explanations while music plays in the background. This particular video addresses when DNA replication starts,...
TED Talks
TED: How to choose clothes for longevity, not the landfill | Diarra Bousso
Buying cheap clothing online can be satisfying, but it comes with not-so-hidden environmental costs. When designer Diarra Bousso was growing up in Senegal, her family bought and created new outfits for longevity rather than on impulse —...
TED Talks
TED: What's the point of digital fashion? | Karinna Grant
What if you could own more clothes without crowding your closet or growing your carbon footprint? Introducing the dematerialized future of your wardrobe, digital fashion entrepreneur Karinna Grant talks about the brands selling pixelated...
TED Talks
TED: How to design for dignity during times of war | Slava Balbek
What happens when architecture meets empathy? Through the challenges of the Russian invasion of Ukraine, architect and humanitarian Slava Balbek, who volunteers part-time on the front lines, highlights the importance of designing for...
TED Talks
TED: The beauty of wildlife — and an artistic call to protect it | Isabella Kirkland
I think of my paintings as alarm clocks, says artist Isabella Kirkland. "They're reminders of what's at stake; the only problem is we keep pushing the snooze button." Investigating humanity's relationship to nature, she shares work that...
TED Talks
TED: Life lessons from Beethoven's Symphony No. 9 | Benjamin Zander
Legendary conductor Benjamin Zander explains his view on the difference between "positive thinking" and "possibility" (one's a fraud; the other's the real thing, he says) and intersperses delightful stories from a lifetime in music with...
TED Talks
TED: How to fix fashion and protect the planet | Amy Powney
From the field to your closet, your clothes go on a long journey before they enter your life. Designer Amy Powney explores the fashion industry's brutal impact on the environment and human health, modeling what ethical, planet-friendly...
Amoeba Sisters
Mitosis and Meiosis: Before the Bell Biology
Time before the bell to try 9 questions centered on mitosis and meiosis? You'll also get answers complete with illustrations and explanations while chill music plays in the background. It's a valuable way to use those minutes before the...
Amoeba Sisters
Protein Synthesis: Before the Bell Biology
Time before the bell to try several protein synthesis questions with the Amoeba Sisters? You'll also get answers complete with illustrations and explanations while chill music plays in the background. It's a valuable way to use those...
TED Talks
TED: The beauty of building with mud and trash | Vinu Daniel
What if we could use waste to create resilient and sustainable buildings? Bringing out the beauty of the dirt beneath our feet, climate-responsive architect Vinu Daniel shares how he and his team are giving local and discarded materials...
TED-Ed
TED-Ed: Why is this black square famous? | Allison Leigh
In 1915, an exhibition of radical artworks opened in Russia. Many pieces pushed the boundaries of form and style, but one was particularly controversial: Kazimir Malevich's "Black Square." Criticized as simple and uninspired, Malevich's...
TED-Ed
TED-Ed: How dangerous was it to be a jester? | Beatrice K. Otto
Contrary to common belief, jesters weren't just a medieval European phenomenon but flourished in other times and cultures. The first reliably recorded jester is thought to be You Shi, of 7th century BCE China. Jesters had unique...
TED Talks
TED: The simple solution to fast fashion | Josephine Philips
Your favorite pair of jeans -- the ones you refuse to throw out -- are actually a part of a global climate solution, says fashion entrepreneur Josephine Philips. When you value your existing clothes instead of chasing the latest trends,...
SciShow
Should We Be Raising Kids Barefoot?
While most of us only think about our shoes in terms of how they complete our outfits, there's a lot more impact that your choice of footwear can have on your life. Turns out that shoes can change how your feet grow and develop. So is it...
SciShow
The Weird Reason More Bridges Are About to Fail
While they are incredible engineering marvels, we don't think about bridges all that much. But there's a good reason we should all be thinking about our bridges, since there's a weird reason that more of them might be at risk of failure...
PBS
Am Radio Is Fading. Here's Why Some Critics Are Concerned
In recent years, podcasts and streaming internet content have been challenging AM radio for listeners. Now, there’s another threat: electric automakers are installing radios without the AM band in new vehicles, citing interference from...