A projector is a machine that projects an image onto a screen. LCD projectors work by shining a light through three LCD screens. When the colored light passes through these three screens, they relay three versions of the same scene....

It is very unlikely that you will go up in flames if you toss a cigarette butt in a pool of gasoline. Cigarettes tend to burn at a much lower temperature than gasoline, and the fumes from the gasoline are the main burning agent, not...

Chef and food system activist Michele Knaus shows how to make a Red Flannel Hash with Corned Beef using a variety of leftover ingredients in the refrigerator. Not only does this dish help to cut down on food waste, the eclectic mix of...

Kathryn Yeomans of the Farmer's Feast demonstrates how to make a creamy risotto rice dish. Although it does take a little extra time, risotto is not difficult to make once you see how it's done.

In this video we will begin to look at some of the key features that describe the parts our Solar System. Quite simply it is the name given to the collection of planets and other bodies that orbit a star. It is only recently by using...

In this video viewers will learn that heat of fusion is equal to the amount of heat that must be added or given off to melt or freeze one gram or kilogram of a substance and it’s expressed J/g or J/kg. Students will learn what units are...

Liquid mirrors are lighter, simpler, faster to construct, and ten times cheaper than conventional glass mirrors

Discover the properties and uses of mercury, as well as its historical significance, toxic nature, and various applications in thermometers, dental amalgams, batteries, and more. This video also emphasizes the shift towards safer...

This lesson is about analyzing the balance sheet to formulate questions for management. It covers liquidity, efficiency ratios, good and bad assets, and liabilities and equity ratios. The video uses a steel fabrication company as an...

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

This video discusses the hydrosphere, which is the part of Earth that contains all the water on and around the planet. The video explains the different forms of water and how they are distributed on Earth. It emphasizes the importance of...

In this video, we explore the fascinating properties of non-Newtonian fluids, specifically an oobleck made from water and starch. By introducing sound vibrations, we observe how the oobleck transforms and behaves in unique ways, forming...

Helium is so great...and we are running out of it, but also we are not running out of it.

Soup is made by boiling foods in water so that they release their flavors into the water to form a broth. Humans have likely been making and eating soup since 20000 B.C.E! Learn how to make onion soup.

Pure water doesn’t conduct electricity; by itself, it is a poor conductor of electricity. However, water contains charged ions and impurities that make it a very good conductor of electricity. We are always told and taught that water...

The Sun, Water Cycle, & Climate shows us how the sun produces heat to drive the water cycle. It's made clear that the water cycle continues in the absence of sunlight or heat. We learn how the two components of climate- temperature and...

Bailey learns the way in which weather affects people all over the world. Through his adventure, he comes to understand how weather affects the clothes we wear, our homes as well as the animals and land all around us.

To operate and function efficiently, machines of all shapes and sizes need a source of energy. A series of innovations is helping to make energy conversion within fuel cells as efficient as possible.



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This video is a lecture about waves, specifically transverse and longitudinal waves. The speaker defines what a wave is and explains how it transfers energy without any matter being transferred. The video then delves into the differences...

What's butter made of? What about olive oil? Well they're lipids, which are largely nonpolar substances. Why is one solid at room temperature and the other is liquid? What are trans fats and why are they bad for you? Let's find out all...

What is the difference between heat, thermal energy and temperature? This program explores the differences between each and explains that temperature indicates how hot or cold a substance is, heat is the transfer of thermal energy from...

This video explains what eye floaters are, how they occur, and when they may require medical attention. It reassures viewers that seeing floaters is a common occurrence and not a cause for alarm unless they become more frequent or affect...

This series of videos takes students on a fascinating journey, following food as it travels through the digestive system. Clear animations illustrate the functions of the major digestive and excretory structures. Concepts and terminology...

Liquid oxygen has unusual magnetic properties. This demonstration with the MIT Technical Services Group and a crazy blowtorch demonstration on the curie point of iron share a glimpse into how different kinds of magnetism work.