Science Kids Climate Change Causing Insect Relocation

This video emphasizes the urgent need for transformative actions to combat climate change and protect our ecosystems. It highlights the importance of phasing out fossil fuels,...

We just learned how to solve homogenous linear second-order differential equations. Now it's time to tackle the non-homogenous variety. This will start out the same way that we learned in the previous tutorial, but that will get us...

We've covered the basics regarding second-order differential equations and their solutions, for both linear homogenous and nonhomogenous differential equations. Now let's look at some special second-order types, such as Cauchy-Euler, and...

Solving differential equations can get pretty tricky, but in this modern age we have some tools that can be very useful. We can use computers to carry out sophisticated numerical methods that can solve any differential equation, no...

One technique for solving differential equations is to use power series. Hopefully we remember Maclaurin series and Taylor series from our study of calculus. These will actually have an important application here, as we can use infinite...

Did you know that we can use systems of differential equations to model real world situations? It's true! Let's go through a concrete example from start to finish, to show how we can describe the scenario, come up with equations that...

We just looked at some simple ways to solve systems of differential equations, via modeling and elimination. But there are other methods, some of which involve matrices. This will require that we remember some concepts from linear...

Lifelong friends Sanjana and Nandini are raising money for children with cleft lip and palate by selling handmade charm bracelets for $5 and donating 100% of their proceeds to Smile Train. Thanks to these two teenagers and...

Howcast - When converted to a standard solution, EDTA is a useful chemical compound for titration applications such as determining the metallic content of various solutions.

Howcast - Check out this Portal 2 walkthrough and beat Chapter 8 - Part 7: Room 06/19 with this online demo.

Howcast - Learn how to sanitize beer brewing equipment at home from home brewer Chris Cuzme in this Howcast video.

Howcast - Learn how to brine poultry, fish, or meat from Pork Barrel BBQ pitmasters Heath Hall and Brett Thompson in this Howcast video.

Howcast - Find out how women can improve communication skills from life coach Stephanie Florman in this Howcast video.

Howcast - Learn how to have a natural hair look from stylist Joy La Rosa in this Howcast wedding hair tutorial.

Howcast - Learn how to sound conversational in your speech from media coach TJ Walker in this Howcast public speaking video.

Howcast - Learn how to treat balding hair from hair transplant surgeon Craig Ziering, MD in this Howcast video.

Howcast - Learn if it's possible to cure an addiction on your own from Dr. Paul Hokemeyer in this Howcast video.

Howcast - Learn about addiction therapy treatments from Dr. Paul Hokemeyer in this Howcast video.

Howcast - Learn how to prepare fabric for tie dyeing in this Howcast video.

Howcast - Spring cleaning does not need to be a noxious-chemical-filled affair. Here are some ideas to keep your household chores nontoxic.

Howcast - Waking up in the morning to find your windshield covered in ice is a time-consuming -- and cold -- delay. Here are some ways you can keep from getting frozen out.

Howcast - If your car battery is corroded, not enough electricity can be passed to the terminals and through the cables to power your car's electrical system for optimum performance. You can clean away corrosion with a few simple steps.

Howcast - No one likes to wash windows, but with the right tools and a little know-how, you can get the chore out of the way in no time.

Howcast - Learn the top five makeup mistakes in this makeup tutorial from Howcast.