TED Talks
TED: What can save the rainforest? Your used cell phone | Topher White
The sounds of the rainforest include: the chirps of birds, the buzz of cicadas, the banter of gibbons. But in the background is the almost-always present sound of a chainsaw, from illegal loggers. Engineer Topher White shares a simple,...
TED Talks
TED: Kids are speaking up for the environment. Let's listen | Olafur Eliasson
Known for big, attention-grabbing installations -- like his four towering waterfalls in New York's East River -- Olafur Eliasson has scaled down his latest project, Earth Speakr: an art platform for kids designed to spur budding climate...
TED Talks
TED: Why it's too hard to start a business in Africa -- and how to change it | Magatte Wade
Many African countries are poor for a simple reason, says entrepreneur Magatte Wade: governments have created far too many obstacles to starting and running a business. In this passionate talk, Wade breaks down the challenges of doing...
TED Talks
Derek Sivers: Weird, or just different?
"There's a flip side to everything," the saying goes, and in 2 minutes, Derek Sivers shows this is true in a few ways you might not expect.
Be Smart
What's The Loudest Possible Sound?
What is the loudest possible sound? What about the quietest thing we can hear? And what do decibels measure, anyway? In this video you'll learn what makes sound
TED Talks
TED: Why I'm done trying to be "man enough" | Justin Baldoni
Justin Baldoni wants to start a dialogue with men about redefining masculinity -- to figure out ways to be not just good men but good humans. In a warm, personal talk, he shares his effort to reconcile who he is with who the world tells...
TED Talks
Laura Carstensen: Older people are happier
In the 20th century we added an unprecedented number of years to our lifespans, but is the quality of life as good? Surprisingly, yes! Psychologist Laura Carstensen shows research that demonstrates that as people get older they become...
TED-Ed
TED-ED: Rosalind Franklin: DNA's unsung hero - Claudio L. Guerra
The discovery of the structure of DNA was one of the most important scientific achievements in human history. The now-famous double helix is almost synonymous with Watson and Crick, two of the scientists who won the Nobel prize for...
TED Talks
TED: Poems of war, peace, women, power | Suheir Hammad
Poet Suheir Hammad performs two spine-tingling spoken-word pieces: "What I Will" and "break (clustered)" -- meditations on war and peace, on women and power. Wait for the astonishing line: "Do not fear what has blown up. If you must,...
Bozeman Science
Sound Waves
Mr. Andersen explains how sound waves are created and perceived. A brief discussion of pitch and loudness are included. A generated sound of varying pitches is also included.
TED-Ed
TED-ED: How to prove a mathematical theory - Scott Kennedy
Euclid of Alexandria revolutionized the way that mathematics is written, presented or thought about, and introduced the concept of mathematical proofs. Discover what it takes to move from a loose theory or idea to a universally...
TED Talks
Kaki King: Playing "Pink Noise" on guitar
Kaki King, the first female on Rolling Stone's "guitar god" list, rocks out to a full live set at TED2008, including her breakout single, "Playing with Pink Noise." Jaw-dropping virtuosity meets a guitar technique that truly stands out.
SciShow
No Ears, No Problem: Frogs Can Hear With Their Lungs
If you’ve ever looked at a frog’s head, you might have noticed that they don’t have external ears. So How do they hear?
SciShow
Babies are Surprisingly Smart
Before they can walk or talk, infants start to do all sorts of cognitive feats that seem awfully smart for a baby.
TED Talks
TED: The future of news? Virtual reality | Nonny de la Pena
What if you could experience a story with your entire body, not just with your mind? Nonny de la Pena is working on a new form of journalism that combines traditional reporting with emerging virtual reality technology to put the audience...
TED Talks
TED: How we became sisters | Felice Belle and Jennifer Murphy
Poets Felice Belle and Jennifer Murphy perform excerpts from their play "Other Women," which is created and directed by Monica L. Williams. In a captivating journey, they weave together stories full of laughter, loyalty, tragedy and...
Be Smart
How Much Plastic is in the Ocean?
Ocean plastic pollution is a massive environmental problem. Millions of tons of plastic waste enter the ocean every year, even plastic that goes in the trash can often ends up in the sea! This week we learn about the Great Pacific...
Bozeman Science
The Sensory System
Paul Andersen explains how we perceive our environment using our sensory system. He starts with a brief discussion of action potentials and the nervous system. He shows that we many more than five senses. He goes into more detail to show...
SciShow
Why Do My Ears Pop?
We’ve all experienced it, that annoying pressure in our head when we’re flying in a plane or a storm front comes in, then it pops! Find out how this popping happens and things to avoid so you don’t harm your ears.
TED-Ed
TED-Ed: Can loud music damage your hearing? | Heather Malyuk
After a concert, you find it difficult to hear your friend rave about the show. It sounds like they're speaking from across the room, and it's tough to make out their voice over the ringing in your ears. But, by the next morning, the...
SciShow Kids
Birds that Talk!
Birds can communicate with each other in lots of ways, but some types of birds can learn human words! But just because they learn human words, does that mean that they can understand them?
TED-Ed
TED-Ed: The science of hearing - Douglas L. Oliver
The ability to recognize sounds and identify their location is possible thanks to the auditory system. That's comprised of two main parts: the ear, and the brain. The ear's task is to convert sound energy into neural signals; the brain's...
TED Talks
Rebecca Knill: How technology has changed what it's like to be deaf
"Complete silence is very addictive," says Rebecca Knill, a writer who has cochlear implants that enable her to hear. In this funny, insightful talk, she explores the evolution of assistive listening technology, the outdated way people...