Sikkel — who runs a marine laboratory at Arkansas State University — studies host-parasite-cleaner interactions on coral reefs, and the influences of changes in reef ecology triggered by climate change.



In addition to leading...

Learn about adjective order in English with this lesson. When you use several adjectives with a noun in English, the adjectives have to go in a specific order. For example, we say "strong black Italian coffee," but you...

The video is a lecture presentation that discusses the limitations and challenges of business sales forecasting. He also discusses the difficulties in predicting consumer tastes and market trends, and how biased assumptions can affect...

The internet is inaccessible to 60% of the world's population. Tim Berners-Lee, the web's inventor, has decided to change this.

This video explores five fun facts about George Washington.

The second most beautiful equation and its surprising applications

Learn how to solve the particular solution of differential equations. A differential equation is an equation that relates a function with its derivatives. The solution to a differential equation involves two parts: the general solution...

In this lesson, Mr. P. will discuss how to write a conclusion paragraph of an opinion essay. He will focus on how to rewrite your thesis statement, review topic sentences and conclude the paragraph with a suggestion, an opinion or a...

View Part 2 of this 2-video series next in the Kinesiology/Personal Training Playlist in which we convert the avocado's calories to body fat weight.

Una explicación animada acerca de que se dice que la tecnología nos quita capacidades humanas ¿es así? ¿Qué es lo que nos hace humanos? ¿Nos lo puede quitar la tecnología? ¿Será posible que sea al contrario? y, para empezar, ¿Qué...

This video is a math lesson on differentiation, where the presenter explains the concept of differentiation from first principles and how to apply it to different functions. They also discuss the general rule for differentiation and show...

Watch Elon Musk at the WSJ CEO Council Summit talk about future plans for Tesla and SpaceX. Musk also reveals why he moved to Texas and shares his advice for business leaders.

It's also worth remembering that education is kind of economically weird. It's not just another thing you buy. Education isn't only about individual gain. There's a social aspect as well. We want everyone to have access to quality...

Mr. Beat compares and contrasts North Carolina and South Carolina.

The video discusses how the physical properties of substances depend on the bonding between particles. It covers ionic compounds, small molecules, giant covalent structures, metals, and alloys, and explains how the nature of the bonding...

What are environmental laws?

A short summary of the case the Supreme Court will examine of the Masterpiece Cake Shop and it's refusal to serve a gay wedding reception with a fair examination of the Constitutional issues involved.

The United States is a representative democracy where people vote for politicians to govern on their behalf – but voting in the direct democracy of ancient Athens was a very different process.

The video is a lecture presentation on the concepts of stretching and bending. The presenter explains the different types of forces and their effects on an object's shape and size. They go on to discuss the deformation of an object and...

Yoga With Adriene founder Adriene Mishler discusses the long-term impact of the pandemic on the fitness and wellness industries.

The video portrays the devastating effects of a severe drought on a sanctuary for horses and the wider agricultural industry in South Africa. The lack of water has resulted in lost jobs, reduced crop yields, and a threat to the survival...

Big is the opposite of little. Which means that little is the opposite of big. What’s the opposite of near? Or the opposite of front? Up, down, far, and back, as Harry Bear looks for his friends, he finds them in situations that teach...

It’s two stories in one, as Buzzy and his friends have fun playing with colors and then discovering words—like some, many, and lots and lots! First, buzzy is joined by some animal friends, while he learns all about different colors and...

John Baer has been teaching at Rider since 1992. Before that he worked as a test developer and researcher at the Educational Testing Service (in Princeton, NJ); taught middle and high school and helped run a large gifted/talented...