This 15-minute video lesson looks at the role of the sarcoplasmic reticulum in controlling calcium ion concentrations within the muscle cell. [Biology playlist: Lesson 49 of 71].

This 14-minute video lesson looks at secondary active transport in the Nephron. [Biology playlist: Lesson 60 of 71].

This 14-minute video lesson covers the chromosomal basis for gender and sex-linked traits. [Biology playlist: Lesson 17 of 71].

This 14-minute video lesson looks at how a sodium potassium pump can maintain a voltage gradient across a cell or neuron's membrane. [Biology playlist: Lesson 42 of 71].

This 13-minute video lesson looks at the science of taxonomy and where humans fit into the tree of life. [Biology playlist: Lesson 62 of 71].

This 19-minute video lesson provides an overview of how the nephrons in the kidney filter blood and reabsorb water and other molecules. [Biology playlist: Lesson 59 of 71].

This 9-minute video lesson looks at tropomyosin and troponin and their role in regulating muscle contraction. How calcium ion concentration dictates whether a muscle is contracting or not. [Biology playlist: Lesson 48 of 71].

This 23-minute video provides an introduction to viruses. [Biology playlist: Lesson 19 of 71].

Biology connects all of life—all of YOUR life. In the final episode of Crash Course Biology, Dr. Sammy is taking your questions. No matter how big, small, or personal, biology is in them all! He’ll show us how biology can help us solve problems and understand everyday life.
Chapters:
Introduction: Biology and You
Stress Response
Ecological Niches
Water Solvency
Unity of Life
Biology as a Career
Evolution
Final Review & Credits
Credits

We’ve talked about different materials engineers use to build things in the world, but there’s a special category of materials they turn to when building things to go inside our bodies. In this episode we’ll explore the world biomaterials like titanium and their coatings, the special chemistry of polyurethane, and the cross-linked structure of hydrogels. We’ll also look at the importance of safety & research, as well as the enormous future potential of biomaterials.

We’ve discussed the four main branches of engineering but there are so many other fields doing important work, so today we’re going to explore a few of them. In this episode we’ll explore some of the history and fundamentals of industrial engineering, biomedical engineering, and bioengineering.

Do you know how Prozac works? Or lithium? Did you know that electroshock therapy is still a thing? There's a lot to know about biomedical treatments and how they work in tandem with psychotherapy or talk therapy. In this episode of Crash Course Psychology, Hank talks about how Biomedical Treatments have evolved and how they work with other therapies.

Chapters:
Introduction: Does Psychotherapy Work?
Client & Clinician Perceptions
Treatment Outcome Research
Effectiveness vs. Efficacy
Which Therapies Work Best?
Biomedical Therapies
Classes of Psychotropic Drugs
"Electro-Shock" or Electroconvulsive Therapy (ECT)
Other Biomedical Therapies: rTMS & DBS
Lifestyle Changes
Review & Credits
Credits

The history of science up until the Cold War is often overshadowed by the Manhattan Project. But, today we are going to talk about advances in biomedicine, or healthcare based on a biological understanding of human bodies and diseases.

This learning video introduces high school students to a topic they would not ordinarily study in school, biotechnology, and to different applications of biotechnology that relate to the main theme of the module - making the desert greener. After reviewing traditional methods used for manipulating plants to produce desired traits, students will learn about the methods of making transgenic plants. Dr. Ziad discusses a real world problem that is critical in his country, Jordan, where much of the land is desert. A prerequisite to this video lesson is some background in biology.

The history of discovering what DNA is, what it looks like, and how it works is... complicated. But, in this episode of History of Science, Hank Green does his best to lay out the basics so we can understand the beginnings of Biotechnology.

In this Nature video, learn about the extraordinary impact that birds have on the agriculture of a small Indian community.

Join us on a special trip up to Bathurst Island to record birdsongs, and learn about how you can use bird observations to create scientific inquiry in your classroom using ebird.org and birds.cornell.edu/birdsleuth.

By the middle of the 20th century, the epicenter of American theater, the Broadway theater district in New York, was getting to be a pretty staid and commercial place. There was a lot of money to be made from prestige plays and dancing revues, and the was no room in the relatively few theaters for edgy, non-commercial work. Enter Off Broadway.

MIT researcher Deb Roy wanted to understand how his infant son learned language -- so he wired up his house with videocameras to catch every moment (with exceptions) of his son's life, then parsed 90,000 hours of home video to watch "gaaaa" slowly turn into "water." Astonishing, data-rich research with deep implications for how we learn. Deb Roy studies how children learn language, and designs machines that learn to communicate in human-like ways. On sabbatical from MIT Media Lab, he's working with the AI company Bluefin Labs. A quiz, thought provoking question, and links for further study are provided to create a lesson around the 20-minute video. Educators may use the platform to easily "Flip" or create their own lesson for use with their students of any age or level.

Movies didn't always look like they do now. There was a period (kind of a problematic one) where movies transitioned from short novelties to big, epic, feature films. That's our focus this week as Craig talks to us about the birth of the feature film and the work of D.W. Griffith.