This is a lecture video explaining the concepts of specular and diffuse reflection. The video discusses how light rays follow the law of reflection, where the angle of incidence is always equal to the angle of reflection. It gives...

Learn about the life of Booker T. Washington, a prominent American educator and reformer.

Enzymes have optimal conditions under which they operate. Temperature, pH, enzyme concentration and substrate concentration are some conditions that affect the rate of reaction. As enzymes are proteins, they have an optimum temperature...

This video explains the role and function of ADH (anti-diuretic hormone) in controlling the body's water balance. It describes how ADH is produced and released from the pituitary gland in response to changes in the body's water content,...

In this short film social constructionism is both illustrated - by explaining how culture teaches us to see the world in certain ways - and applied through examples of contemporary and cross-cultural constructions of gender.

This video provides a concise explanation of color blindness, describing how it affects a person's ability to see certain colors and the role of cones in the eye. It also explains the different types of color blindness and the causes of...

Doodle Science teaches you high school physics in a less boring way in almost no time!

Cystic fibrosis is a genetic disease. It is caused by a defective gene on one of the chromosomes which has been inherited from the parents. The severity varies greatly from person to person, and largely depends on how much the lungs are...

In this video, I explain the plantar reflex. More specifically, we discuss the reflex arc and how to determine whether or not the reflex is present/normal or abnormal in both adults and in infants.

This is a lecture video that explains how ray diagrams can be used to describe the reflection of a wave from a surface. The video begins by demonstrating how to draw an incident ray and a normal on a surface, and how to use the law of...

This is a lecture presentation on the topic of reflection and refraction experiments. The presenter explains the key terms involved in the experiment and demonstrates how the changing angle of incidence affects the angles of reflection...

The video is a tutorial on how to simplify surds when expanding brackets that include square roots. The presenter explains the three key rules for simplifying surds and demonstrates how to employ them when expanding and simplifying...

This live-action video program is about drought. The program is designed to reinforce and support a student's comprehension and retention of the term through use of video footage, photographs, diagrams and colorful, animated graphics and...

The free body diagram we first learn is not entirely accurate. All of the forces are not drawn from the center of mass of the object. Learn why we start this way and, when we get torque, what the free body diagrams will actually look...

A journalist by trade, Lenore spent 14 years at The New York Daily News as a reporter-turned-opinion columnist, and two more at The New York Sun. In 2008, after her column "Why I Let My 9 Year Old Ride the Subway Alone" landed her on...

Separate the myths from facts about bereavement, explore the process of mourning and moving on and learn how to be supportive and supportable. Losing someone you love or something you care about can be very painful. There is no right way...

Easy Languages is an international video project aiming at supporting people worldwide to learn languages through authentic street interviews and expose the street culture of participating partner countries abroad. Episodes are produced...

This live-action video program is about the word push. The program is designed to reinforce and support a student's comprehension and retention of the word push through use of video footage, photographs, diagrams and colorful, animated...

Perception and communication. Is our perception of reality THE reality or is it just the way we personally see things. We'll look at our perception with some key concepts in mind from the coordinated management of meaning and social...

Part 1/4 of Dana Donofree series: The video tells the inspiring story of Dana, a breast cancer survivor who used her creativity and background in fashion to create a product line, AnaOno, designed to fit the needs of breast cancer...

Mr. Clifford's 60 second explanation of how to draw monopolisticly competitive firm in long run equilibrium. Remember that ATC must hit the demand curve at the "sweet spot". In the bonus round learn why the firm is not efficient and...

This video provides an explanation of plane stress, which occurs when all of the stresses acting on a component are in the same plane. The two types of stress, normal stress and shear stress, are introduced, along with their...

A TEENAGER whose skin is so fragile it bleeds and blisters as she sleeps has helped her parents raise 5 million for charity. Sohana Collins' morning routine takes longer than most: on schooldays the 16-year-old wakes up between 6-7am...

The video is a presentation on the equations of tangents and normals in calculus. The presenter recaps the process of finding the greater function and then focuses on how to find the equation of a tangent and normal. The presenter gives...