SciShow
Visual Illusions: Why You See Things That Aren't There
What's the deal with all those little flashes of light you see when you close your eyes? And why do truck drivers and people in jail see glowing circles and spirals?
SciShow
Curiosity’s Sequel, and the Key to Finding Alien Life
SciShow Space News shares the latest developments from around the universe, including the Curiosity’s arrival at its final destination, and new insights into what clues we should really be looking for in our search for alien life.
SciShow
Why Gooey Creatures Might Outlast Us All
Although gelatinous animals might seem like simple creatures, they'll probably outlast the rest of us, because being gelatinous might turn out to be the ultimate survival strategy.
TED-Ed
TED-ED: What is leukemia? - Danilo Allegra and Dania Puggioni
Stem cells found in the bone marrow are crucial for our health because they are needed to become new blood cells that sustain and protect our bodies. But when the transformation goes wrong, harmful mutations can cause the cells to start...
Bozeman Science
Lewis Diagrams and VSEPR Models
In this video Paul Andersen explains how you can use Lewis Diagrams and VSEPR Models to make predictions about molecules. The Lewis diagrams are a two-dimensional representations of covalent bonds and the VSEPR models show how the...
Crash Course
Respiratory System, part 2: Crash Course A&P
Can a paper bag really help you when you are hyperventilating? It turns out that it can. In part 2 of our look at your respiratory system Hank explains how your blood cells exchange oxygen and CO2 to maintain homeostasis. We'll dive into...
SciShow
The Biggest Sloth That Ever Lived, and 6 Other Gigantic Animals
Sometimes it seems like the past favored large animals, but it turns out that each one on this list has a different reason for its size. Chapters View all Carboniferous & Permian periods 360 251 million years ago 1:04 DRAGONFLY Credit:...
Amoeba Sisters
Human Body Systems Functions Overview: The 11 Champions (Updated)
This is the updated Amoeba Sisters human organ systems video, which provides a brief function introduction to each of the 11 human organ systems. Table of Contents: Intro 00:00 Levels of Organization 0:49 Circulatory 1:39 Digestive 2:40...
TED Talks
TED: How going to Mars improves life on Earth | Eric Hinterman
Memory foam, air purifiers, scratch-resistant lenses: these are just a few of the everyday items originally developed for space missions. Aerospace engineer Eric Hinterman invites us to dream big and imagine what technological...
SciShow
What We Learned from the Apollo 1 Fire
The Apollo 1 fire was a tragedy and a huge wake-up call for NASA, causing them to get much more serious about their safety procedures and technology, and also changed their attitude towards spaceflight in general.
Bozeman Science
Biogeochemical Cycling
Paul Andersen explains how biogeochemical cycling is used to move nutrients from the environment into living material and back again. He explains the water cycle, the carbon cycle, the nitrogen cycle and the phosphorus cycle. He also...
SciShow
Where Does the Candle Wax Go?
While not used much any more as a primary source of light, candles are still everywhere, from an aroma in a bathroom to a mood during dinner. That is, until they’re gone.
SciShow
Could Humans Ever Breathe Water?
Wouldn’t it be wonderful if we could breathe underwater? But is it even possible?
TED Talks
TED: The fingerprints of life beyond Earth | Clara Sousa-Silva
Is there life on Venus? Quantum astrochemist Clara Sousa-Silva makes the case for a new way to seek and possibly discover habitable planets -- and shares her research into a poisonous, smelly molecule that might signal life beyond Earth.
SciShow
How Do Turtles Live So Long?
We all know turtles live an amazingly long time, but what's their secret? And can we apply it to humans?
SciShow
What's Better for Wounds Scabs or Bandages
When someone gets a little scrape, it's pretty common for them to cover it with a bandage while it heals. There are some people, though, who think it's best to leave the wound uncovered and let your body do its healing thing. Who's...
TED-Ed
TED-Ed: Why sitting is bad for you - Murat Dalkilinc
Sitting down for brief periods can help us recover from stress or recuperate from exercise. But nowadays, our lifestyles make us sit much more than we move around. Are our bodies built for such a sedentary existence? Murat Dalkilin�c...
SciShow
The Science of Wildfires
So, what is fire, exactly? What causes fires in the wild, and how do we put them out? SciShow answers your burning questions about the science of fire. (See what we did there?)
SciShow
Get Charged Up for the Gigafactory
Hank shares the latest ambitious project from SpaceX and Tesla entrepreneur Elon Musk: The Gigafactory. Learn more about how batteries work, what the big deal is about lithium, and why people are getting so charged up. See what we did...
Crash Course
More Organic Nomenclature Heteroatom Functional Groups - Crash Course Organic Chemistry
Oxygen is pretty dang amazing! Some of the most intensely studied functional groups in organic chemistry have oxygen atoms. In this episode of Crash Course Organic Chemistry, we're building on the last episode's discussion of...
SciShow
Can You Burn Metal?
You know metal can get really hot, and you probably know that it can melt. But can it burn? Hank shows you how you can burn a hunk of metal like you're some kinda superhero (just be careful, please), and he explains how, in chemistry,...
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
Silicon-Based Life: Could Living Rocks Exist?
It's possible life could form based on elements other than carbon, but they would look much different than the life we are used to.
PBS
The Search for the Earliest Life
More than 4 billion years ago, the crust of the Earth was still cooling and the oceans were only beginning to form. But in recent years, we've started to discover that, even in this hellish environment, life found a way.