Topic: bacteria

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Can Bird Poop Make Clouds?

How does bird poop potentially help to keep our climate just a wee bit cooler? In this episode of Gross Science, Anna Rothschild helps connect tens of millions of seabirds in the Arctic to 40,000 metric tons of ammoni...

Why is Lake Hillier pink?

Fly over Lake Hillier, a stunning pink lake on Middle Island, off the south coast of Western Australia. The footage was filmed by Jaimen Hudson, who captures Australia's natural wonders by drone. Lake Hillier is a...

What causes cavities?

When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with holes. So what causes cavities, and how can...

Evolutionary branching in action: Bacteria adapt to antibiotics

Watch E. coli bacteria encounter increasing strengths of antibiotics, the medicine that we use to fight infections or infectious diseases. A team led by Harvard Medical School's Michael Baym set up the video demonstra...

Explaining The Tree of Life

Travel millions of years through time with Sir David Attenborough as he explains The Tree of Life. Some background on the metaphor from The New York Times: In his 1859 book “On the Origin of Species,” Charles Darw...

Why do some people have seasonal allergies?

If you've ever experienced watery eyes, sneezing, runny nose, itchy throat, and other allergic reactions during springtime, or you haven't but you know someone who has, this beautifully animated TED Ed by Eleanor Nels...

Subvisual Subway – The Art of New York City’s Bacterial World

Why do we wash our hands after we've been riding on public transportation? Is it true that "using the handrails on the subway is like shaking hands with 100 people"? New York City-based typographer and designer Craig ...

This is What Outer Space Does to Your Body

NASA astronaut, engineer, and former football player Leland Melvin explains how the human body changes when it leaves the confines of Planet Earth. Your body may become taller, your heart might get smaller and change ...

Mimicking shark skin to combat superbugs – Think Like a Tree

In 2001, materials scientist Dr. Anthony Brennan observed that Galapagos Sharks are barnacle and algae-free due to the micro-topography of their skin. These diamond pattern nanoridges also make it difficult for bacter...

Explore wastewater treatment with LeVar Burton & Reading Rainbow

How do we use technology to turn human waste into water that we can drink? This Reading Rainbow field trip is an excellent introduction to how we use bacteria, solar power, oxygen, gravity, chlorine, and more to reuse...

Antarctica’s Ice Formations: Volcanic ice caves & undersea brinicles

The caves of Mount Erebus, Antarctica's only active volcano, hide fragile and sparkling secrets: spectacular ice stalagmites, stalactites, shards, and feather-like crystals that form from the volcanic steam and gases ...

The Hidden Perils of Permafrost – Deep Look

When you put a permafrost core in a CT scanner and analyze the data, you're traveling back in time to answer important questions: What was buried deep within the frozen soil? How much of it is ice or plant matter? How...

How do wounds heal & how do scars form?

What happens when we get cut and bleed? How does skin scab over and heal? And why does skin scar? These two new vocabulary-filled TED-Eds from Sarthak Sinha get deep under our skin to give us a better understanding of...

The Grand Prismatic Spring: One of Nature’s Most Amazing Sights

Yellowstone National Park's Grand Prismatic Spring may be the nation's largest hot spring, but it's primarily known for its vibrant rainbow of colors. Created by the unique bacteria and algae that live within each hue...

Why Do Clouds Stay Up? – It’s Okay to Be Smart

Clouds are filled with so many water droplets that they're actually heavy... like 100 elephants heavy or a 747 airplane heavy! So why don't clouds fall out of the sky? It's Okay to Be Smart's Joe Hanson explains every...

AsapSCIENCE: Paper Towel vs Hand Dryers

Washing your hands properly with soap and water successfully rids your hands of nearly all traces of bacteria. After the soap and water, drying your hands with a hand dryer is most efficient. You can help prevent ...

Animated Life: Seeing the Invisible

"Everything that you can actually see with your eye is just the smallest sliver of life on this Earth. Most of life is invisible..." And so begins the exquisite paper-puppetry of Seeing the Invisible, a video by F...

Sci Code: Don’t Wash Your Jeans

SCI CODE's Coma Niddy (Mike Wilson) explains why you don't need to wash your jeans.

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