Crash Course
Evaluating Evidence: Crash Course Navigating Digital Information #6
Today we’re going to focus on how to tell good evidence from bad evidence and maybe importantly, how to identify “Fine, but that doesn’t actually prove your point” evidence - the stuff that the Internet is built on.
SciShow
How Do You Know If You Have Food Poisoning?
Most of us have experienced food poisoning, but with 31 unique species of bacteria, viruses, and parasites as common culprits, it's hard to know exactly what it is.
SciShow
People May Have Walked North America 30,000 Years Ago | SciShow News
Two new studies challenge what we thought we knew about the first humans in the Americas, sending the archaeology community buzzing. Could people have been on these continents 10 to 15 thousand years earlier than archaeologists...
SciShow
Why Does Rain Smell?
Almost everyone loves the smell of rain, but where does the smell come from? Join Quick Questions as we stop and smell the chemistry!
SciShow
How We Discovered the Milky Way's Black Hole
The search began with a physicist checking for sources of static on phone calls in the 1930s, but it took several decades to finally make one of the biggest discoveries in astronomy, Sagittarius A*.
TED Talks
Al Gore: What comes after An Inconvenient Truth?
At TED2009, Al Gore presents updated slides from around the globe to make the case that worrying climate trends are even worse than scientists predicted, and to make clear his stance on "clean coal."
Crash Course
The Facts about Fact Checking: Crash Course Navigating Digital Information #2
We're off to fact-checking school. This time, John Green is teaching you how to fact-check like the pros. We're going to walk through the steps that professionals follow, including figuring out who is behind the information we read, why...
TED Talks
TED: How we're harnessing nature's hidden superpowers | Oded Shoseyov
What do you get when you combine the strongest materials from the plant world with the most elastic ones from the insect kingdom? Super-performing materials that might transform ... everything. Nanobiotechnologist Oded Shoseyov walks us...
TED-Ed
Demolition, disease, and death: Building the Panama Canal | Alex Gendler
In the 19th century, the California gold rush brought thousands of settlers to America's west coast. But finding gold may have been easier than transporting it back east. The only hope for avoiding a grueling six month wagon journey was...
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
Elon Musk: The mind behind Tesla, SpaceX, SolarCity ...
Entrepreneur Elon Musk is a man with many plans. The founder of PayPal, Tesla Motors and SpaceX sits down with TED curator Chris Anderson to share details about his visionary projects, which include a mass-marketed electric car, a solar...
TED-Ed
TED-ED: What light can teach us about the universe - Pete Edwards
Humanity has long been looking at the universe and asking the big questions: How did it begin? How will it end? Cosmologists are searching hard for the answers, but where do they even start? The answer is light. Pete Edwards outlines the...
SciShow Kids
How Does Water Get to Your House?
Have you ever turned on a faucet in your sink or shower and wondered where that water comes from? Jessi and Squeaks explore how we get water to our homes!
MinuteEarth
The Problem With Concrete
Concrete is responsible for 8% of humanity’s carbon emissions because making its key ingredient - cement - chemically releases CO2, and because we burn fossil fuels to make it happen. ___________________________________________ To learn...
MinuteEarth
Where Did Earth's Water Come From?
Earth didn't have water when it formed, but it does now! How did it get wet?
Amoeba Sisters
Autotrophs and Heterotrophs
Curious about modes of nutrition? Join the Amoeba Sisters in learning about autotrophs and heterotrophs. Video explains these terms as well as how their carbon source differs. Photoautotrophs, photoheterotrophs, chemoautotrophs, and...
PBS
Cosmic Microwave Background Explained
HAS SPACE ALWAYS BEEN BLACK? As long as we've been around, YES. But the universe gets much more exciting, AND much BRIGHTER, as we start winding our clocks back to the early days of the universe. Near the beginning of the universe, when...
TED-Ed
TED-Ed: Is light a particle or a wave? - Colm Kelleher
Can we accurately describe light as exclusively a wave or just a particle? Are the two mutually exclusive? In this third part of his series on light and color, Colm Kelleher discusses wave-particle duality and its relationship to how we...
TED-Ed
TED-Ed: Biofuels and bioprospecting for beginners - Craig A. Kohn
Biofuels can provide energy without the reliance on environmentally harmful fossils fuels -- but scientists are still searching for a plentiful source. Craig A. Kohn demonstrates how cellulose, the naturally abundant tough walls of plant...
SciShow
Electromagnetism - Magnetic Force: The Four Fundamental Forces of Physics #4b
In this final segment on the four fundamental forces of physics, Hank tackles the magnetic force, the second of the two ways in which electromagnetism is apparent in the universe
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...
Bozeman Science
Doppler Effect
In this video Paul Andersen explains how the perceived frequency of a source depends on the motion of both the source and the observer. As a source approaches an observer the frequency will increase and as it moves away it will decrease....
SciShow
The Only Radiation Units You Need to Know
In order to have a meaningful conversation about the dangers of radiation exposure, it’s important to be clear about just how much radiation we are dealing with. Unfortunately, the units we use are kind of a mess… but SciShow is here...
Crash Course
Sound: Crash Course Physics
We learn a lot about our surroundings thanks to sound. But... what is it exactly? Sound, that is. What is sound? And how does it travel? And what is this Doppler Effect that we've heard so much about? In this episode of Crash Course...