An ultra-high-resolution NASA computer model has given scientists a stunning new look at how carbon dioxide in the atmosphere travels around the globe.



Plumes of carbon dioxide in the simulation swirl and shift as...

Heme Catabolism to Urobilin and Stercobilin

Music: "Halos" by Lars Leonhard, courtesy of the artist and Ultimae Records.



An international team of astronomers exploring the disk of gas and dust the bright star Beta Pictoris have uncovered a compact cloud of...

When amateur astronomer Gennady Borisov discovered an interstellar comet zipping through our solar system on Aug. 30, 2019, scientists promptly turned their telescopes toward it hoping to catch a...

This video provides a comprehensive overview of the historical, societal, and health implications of smoking cigarettes. It outlines the evolution of attitudes towards smoking, the addictive nature of nicotine, the harmful chemicals in...

This program provides an introduction to chemistry. We begin by discussing how chemistry touches every part of everyday life and give several examples of basic chemical reactions that students come into contact with regularly. The entire...

The Electron Transport Chain: Complex IV

This program covers the very important topic of ionic compounds. We discuss how ionic compounds form and how to predict ahead of time what the chemical formula will be when given the atoms that form the ionic compound. We spend a great...

Pi-backbonding with Strong-Field Ligands

Practice REAL problems from actual past IIT/JEE exams with Professor Dave!

Practice REAL problems from actual past IIT/JEE exams with Professor Dave!

The Atmospheric Infrared Sounder (AIRS) instrument aboard NASA's Aqua satellite has been scanning Earth for 20 years and now has a long enough record to help support climate change research. AIRS data on Earth’s atmosphere are...

In this live-action program viewers will learn that smoking is one of the leading causes of preventable death. Students will come to understand that when a person smokes, hundreds of toxic chemicals are inhaled with every puff and many...

The video discusses the factors affecting dynamic equilibrium by explaining the difference between exothermic and endothermic reactions, and how they relate to reversible reactions. The concept of dynamic equilibrium is explained using...

National Institute of Standards and Technology (NIST) building experts are seeking the answer to a very important home safety question: How close to a house can you operate a portable gas-powered generator without risking poisoning from...

This video is a lecture presentation that focuses on atmospheric pollution, discussing the effects of different types of pollution on the environment and living organisms. The lecturer covers the biological consequences of pollution...

The video program is designed to present the serious, harmful effects of smoking and nicotine to elementary-aged children. The program provides students with a realistic picture of how cigarettes and the harmful substances found in...

Learn the basics about the exchange of oxygen in oxidation-reduction reactions (REDOX) when learning about chemical reactions. In a chemical reaction, oxidation is oxygen GAIN and reduction is oxygen LOSS. A good example of oxidation is...

Crystal Field Stabilization Energy (CFSE) 4: Low-Spin Example

Did you know that smokers are twice as likely to have a heart attack? And that one in two smokers will die from a smoking-related disease. In fact all of these things are negatively affected by smoking… pretty much every organ in your...

What new findings have we discovered about our favourite little world, Pluto?

Learn the basics about Combustion and Incomplete combustion. Complete combustion releases more energy than incomplete combustion. How? Why? Find out more in this video!

Learn the basics about Combustion and Incomplete combustion. Complete combustion releases more energy than incomplete combustion. How? Why? Find out more in this video!

This video discusses the drastic shift in societal views towards smoking over the past century, highlighting the harmful effects of smoking on the body, including immediate impacts such as increased blood pressure and long-term risks...