Professor Dave Explains
Natural vs. Synthetic Vitamins
Anti-science mentality is prevalent in modern society. This is evidenced most clearly in a complete distrust of chemicals synthesized in a laboratory. But does the activity of a molecule depend whatsoever on the pathway from which it...
NASA
Gravity Assist: What is Astrobiology? With Mary Voytek
How did life originate and evolve here on Earth? What form could life take elsewhere – and where else could life survive beyond our planet? These are questions that scientists called astrobiologists tackle every day. By using space...
Catalyst University
Lecithinase Test | Theory & Results
In this video, we explore the theory and interpretation of results for the lecithinase test in microbiology.
Australian Broadcasting Corporation
Can Seaweed Save the World: Seaweed and human health
Professor Tim Flannery investigates how seaweed is helping to save the world. From growing the foods of the future, helping clean polluted water and even combating climate change. Dr. Pia Winberg shows some of the ways that seaweed can...
Curated Video
The Craft and Sport of Ice Skating
Ice skating is a popular winter activity that involves gliding across icy surfaces using specially designed blades attached to footwear. It has a rich history dating back thousands of years, with the first skates made of animal bones....
Curated Video
Gut Microbiome Explained in Simple Words
The gut microbiome are the trillions of microorganisms – primarily bacteria, but also fungi, viruses and protists – that live inside your digestive system. Scientists are discovering that these microbes are vital for us to live healthy...
Catalyst University
CYP2E1 Mechanism: Oxidation of Ethanol to Acetaldehyde
CYP2E1 Mechanism: Oxidation of Ethanol to Acetaldehyde
Astrum
Everything We Know So Far About Phosphine On Venus feat. Dr Clara Sousa-Silva
Dr. Clara Sousa-Silva is the co-author on the study about Phosphine on Venus. We ask her some questions from you about the discovery.
msvgo
Catalysis
It explains the process of catalysis. It describes the homogeneous and heterogeneous catalysis. It discusses the adsorption theory of heterogeneous catalysis.
Curated Video
Understanding the Role of Kidneys in Maintaining Water and Mineral Balance
This video provides an overview of the function of the kidneys in the human body. It describes how the kidneys work to maintain the balance of water and mineral ions in the body, and how they remove waste products from the blood through...
Catalyst University
LDL-mediated Cholesterol Delivery to Cells
In this video, we explore the mechanism of LDL-mediated cholesterol delivery to peripheral cells.
Professor Dave Explains
Limitations of VSEPR Theory
We've learned about VSEPR theory, and we know how to use it to predict molecular geometry for a variety of organic molecules. But in fact, there are situations where predictions made with VSEPR theory do not line up with experimental...
Curated Video
Color Changing Milk: A Fun Science Experiment for Kids
Join us for a fun and safe science experiment using milk, food coloring, and dishwashing liquid. The experiment showcases the properties of liquids and surface tension, as the colors swirl and create patterns when the soap is introduced....
NASA
NASA's Curious Universe: Let’s Go Planet-Hunting!
What do we know about the planets outside our solar system? NASA planet hunters Jessie Christiansen and Knicole Colon take us beyond...into the exciting world of exoplanets.
Tumble Science Podcast for Kids
How Snow Is Made
The phrase “no two snowflakes are alike” is actually scientifically accurate. Snow forms high in the atmosphere, and despite its uniform appearance, each snowflake is different based upon where and how it was formed. Although snowflakes...
NASA
NASA in Silicon Valley: "Kitchen Smoke" Molecules in Nebula: NASA in Silicon Valley Podcast
A news feature from NASA’s SOFIA mission originally posted on August 16, 2016.
Professor Dave Explains
Intermolecular Forces and Boiling Points
Why do different liquids boil at different temperatures? It has to do with how strongly the molecules interact with each other. Find out all the different ways, and how to use them to make predictions about matter!
Curated Video
The Science of Taste
This video explores the fascinating process of how we taste and experience flavors. It delves into the role of taste buds, the connection between taste and smell, and how our brain evaluates and reacts to different flavors. It also...
NASA
Searching for Signs of Life on Mars
ESA's (The European Space Agency) ExoMars rover is headed to the red planet in 2020, on a mission to search for signs of past or present life. One of its primary tools in this endeavor is MOMA, the Mars Organic Molecule Analyzer. MOMA is...
NASA
HIRMES: SOFIA's latest high-resolution Mid-infrared Spectrometer
A team from NASA's Goddard Space Flight Center in Greenbelt, Maryland, is developing a new, third-generation facility science instrument for the Stratospheric Observatory for Infrared Astronomy, SOFIA. The High Resolution Mid-InfrarEd...
Catalyst University
Digestive Enzyme Cascade in the Small Intestine
Digestive Enzyme Cascade in the Small Intestine
Catalyst University
Why do dead whales EXPLODE? | The Infamous Japanese Exploding Whale
Have you seen the videos on Youtube in which beached, deceased whales explode? How does this occur? In this video, we delve into the biological and physical reasons for this "booming" topic.
Catalyst University
Urea Hydrolysis (Urease) Test
1) Theory behind the urease test in microbiology. 2) How to identify positive and negative reactions.