PBS
How Worm Holes Ended Wormworld
Elongated tubes, flat ribbons, and other “worm-like” body plans were so varied and abundant that a part of the Ediacaran is sometimes known as Wormworld. But in the end, the ancient Wormworld was ended by the actions of its very own worms.
Crash Course
Determining SN1, SN2, E1, and E2 Reactions: Crash Course Organic Chemistry
Organic chemistry isn’t that different from an adventure game, with substrates as characters, nucleophiles as magic potions, and reaction conditions as different magical kingdoms. In this episode of Crash Course Organic Chemistry, we’ll...
TED Talks
Nick Bostrom: What happens when our computers get smarter than we are?
Artificial intelligence is getting smarter by leaps and bounds -- within this century, research suggests, a computer AI could be as "smart" as a human being. And then, says Nick Bostrom, it will overtake us: "Machine intelligence is the...
Crash Course
Substitution Reactions - SN1 and SN2 Mechanisms - Crash Course Organic Chemistry
We’ve already learned a bit about substitution reactions in organic chemistry and the two different paths they can follow: SN1 and SN2. In order to better predict the products of a substitution reaction and understand how they work, we...
SciShow
How Does Tape Work?
Ever wonder what makes tape sticky? Hank will tell you in this episode of Quick Questions!
Bozeman Science
AP Biology Lab 2: Enzyme Catalysis
Paul Andersen starts with a brief description of enzymes and substrates. He then explains how you can measure the rate of an enzyme mediated reaction. Catalase from yeast is used to break hydrogen peroxide down into water and oxygen. He...
Bozeman Science
Biological and Polymer Systems
In this video Paul Andersen explains how the structure of a biomolecule fits the function of the biomolecule. For example and enzyme must interact correctly with a substrate to lower the activation energy, The covalent and non-covalent...
TED-Ed
TED-Ed: Activation energy: Kickstarting chemical reactions - Vance Kite
Chemical reactions are constantly happening in your body -- even at this very moment. But what catalyzes these important reactions? Vance Kite explains how enzymes assist the process, while providing a light-hearted way to remember how...
SciShow
Geophysics and Earthquake Prediction
Hank and Dr. Rebecca Bendick talk about her work in the science of earthquake forecasting, and then Jessi joins the show to show off Sandy the sand boa!
Amoeba Sisters
Enzymes (Updated)
The Amoeba Sisters explain enzymes and how they interact with their substrates. Vocabulary covered includes active site, induced fit, coenzyme, and cofactor. Also the importance of ideal pH and temperatures for enzymes are discussed.
Bozeman Science
Enzymes
Paul Andersen explains how enzymes are used to break down substrates. The correct shape of the active site allows a key/lock fit between the enzyme and the substrate. The enzyme catalase is used to break down hydrogen peroxide. The...
Curated Video
Awesome System Engineers Invented to Wash Giant Planes in Few Minutes
New ReviewWelcome back to the Fluctus Channel for a feature about how state-of-the-art aircraft are washed and painted with novel tools. The trades that contribute to the upkeep of airplanes are undergoing a futuristic transition to make them...
Curated Video
How to Grow Mushrooms
Howcast - Mushrooms grow from spores, not seeds. You can grow this curious food indoors or out with a little preparation and the right supplies.
Curated Video
How to Pick a Substrate
Howcast - Learn how to pick a substrate for your snake cage in this Howcast video about pet snakes.
Curated Video
How to Take Care of a Baby Snake
Howcast - Learn how to take care of a baby snake in this Howcast video about pet snakes.
Curated Video
How to Clean Your Pet Tarantula's Terrarium
Howcast - Learn how to clean your pet tarantula's terrarium from Jungle Bob in this Howcast video.
Curated Video
How to Pick & Set Up Substrate & a Hide Area
Howcast - Learn how to pick the right substrate for your terrarium and how to set up a hide area for your pet tarantula from Jungle Bob in this Howcast video.
Curated Video
5 Supplies You Need for a Pet Tarantula
Howcast - Learn about the five supplies you need to take care of a pet tarantula from Jungle Bob in this Howcast video.
Curated Video
How to Take Care of a Pet Scorpion
Howcast - Learn how to take care of a pet scorpion from Jungle Bob in this Howcast video.
Curated Video
Snow Days Are Not Just For Humans! These Polar Bears Play Around in the White Stuff
The San Diego Zoo surprised the bears with the snow day, and they sure look like they're having a blast.
Curated Video
Polar Bears Slide Around and Play During a "Snow Day" in San Diego
The San Diego Zoo surprised the bears with the snow day, and they sure look like they're having a blast.
Curated Video
Winter Time Means a Snow Day for These Polar Bears!
The San Diego Zoo surprised the bears with the snow day, and they sure look like they're having a blast.
Curated Video
Watch As these Polar Bears Slide Around and Play During a Snow Day!
The San Diego Zoo surprised the bears with the snow day, and they sure look like they're having a blast.
Curated Video
Polar Bear Snow Day! Watch As the Bears Slide Around and Play
The San Diego Zoo surprised the bears with the snow day, and they sure look like they're having a blast.