1) Theory behind the triple sugar iron (TSI) in microbiology. 2) How to identify A/A, K/K, and K/A reactions. 3) How to identify production of gas and/or hydrogen sulfide (H2S).

This week we answer your questions from our art hotline* and talk about the distinction between art and craft (if any), art world pretension, the proliferation of images, imposter syndrome, and more.

Is There Life On Mars? A harmonic analysis of one of Bowie's best. We delve into the mind of the composer and explore what makes David Bowie’s “Life on Mars” such an original and iconic song. The main focus is on the harmonic content of...

Evacuated Tube Transport is an airless, frictionless, maglev-like form of transportation which is safer, cheaper and quieter than trains or airplanes. Six-person capsules travel in the tubes and can reach a maximum speed of 6,500 km/h,...

Howcast - Learn how to do a wrist lock MMA submission from Team Radical MMA head coach Rene Dreifuss in this Howcast video.

What makes a painting worth millions of dollars? In this episode of Crash Course Art History, we’re looking at the history behind today’s art industry and how we determine an artwork’s financial value. We’ll also learn how the big...

Ms Represented is a series that charts the rise of Australian female politicians over the last one hundred years and the unbelievable things they got up to along the way. Both the Liberal and Labor parties recognized the gender...

China is fast becoming a world leader in science, but should the world worry? Our deputy editor, Ed Carr, examines the impact of China's scientific expansion.

Howcast - Learn how to use the bishop in chess from Chess NYC in this Howcast video.

In this episode of Crash Course Art History, we’ll learn why museums are so much more than just collections of interesting and pretty objects. Their legacy includes everything from violence to theft, to, oddly enough, mermaid hands.

Astronomer Jean-Luc Margot has come up with a new definition for planets that may help us categorize worlds outside of the solar system, and we may have also discovered a new dwarf planet within the solar system!

Moser's circle problem. What is this pattern: 1, 2, 4, 8, 16, 31,...

In this video, Jade interviews Libby the Ladybug about the importance of gratitude. They discuss how ladybugs help humans and how gratitude can be expressed in daily life. Through a heartwarming story about a girl named Michaela, they...

The Chicano Art Movement was an explosion of Mexican-American culture that established a unique artistic identity in the United States - and raised up a new political voice.

Take a tour through the Louvre Museum in Paris, one of the most famous art museums in the world! Inside, you’ll find the Mona Lisa, ancient Egyptian treasures, and art from all around the globe. Once a royal palace, the Louvre became a...

In a journalism career spanning more than three decades, Tim has written for the Washington Post, Chicago Tribune, Politico, Reader's Digest, and for thirty years the Fort Worth Star-Telegram. Tim's books include the critically acclaimed...

This video explains understanding get and find commands with Cypress. This clip is from the chapter "Deep Diving into Cypress Commands and its Asynchronous Nature" of the series "Cypress - Modern Automation Testing from Scratch +...

Today's question is about the difference between the Tritone Substitution and the Augmented 6 Chord. Is there a difference? Are they the same thing? Will a fight break out in the comments section? Does the Australian Augmented 6 actually...

In which we explore the great city of Richmond, Virginia, and think about its history as well as its present. Featuring: The Virginia Museum of Fine Arts Quirk Hotel Rappahannock Restaurant Lamplighter Roasting Company Early Bird Biscuit...

Howcast - Learn how to use the king in chess from Chess NYC in this Howcast video.

What makes some art valuable enough to hang in museums? In this episode of Crash Course Art History, we’ll look at different ways we can figure out the value of art beyond the number on the price tag, and we’ll examine how culture,...

This week we speak to collaborating artists Mariam Ghani and Erin Ellen Kelly at the Indianapolis Museum of Art, and learn about their approach to learning about and working with landscapes.

Howcast - Learn how to say "yes" in Italian with this Howcast video.

How do smartphones and 3-D models change how we experience art? And even history itself? In this episode of Crash Course Art History, we’ll learn how technology is shifting the ways we think about art’s past, present, and future....