There are three main reasons why we don’t see all the colors in a rainbow: 1. The colors we see in a rainbow are spectral, which means they are also present in the visible spectrum. 2. Some colors, like pink and brown, are made when two...

This video discusses the relationship between the temperature of a body and the rate at which it emits and absorbs electromagnetic radiation, particularly infrared radiation. The video explains how the relative rates of emission and...

This is the winning entry for the 2014 Flame Challenge put on by Alan Alda and the Center for Communicating Science.

The video explains two important features of a wave: the frequency and the time period. It uses a visual representation of a transverse wave and a longitudinal wave to show the peaks, troughs, amplitude, and wavelength of a wave. The...

The video explains the scientific reason behind the blue color of the ocean and how it differs from the blue color of the sky. It also touches on the adaptation of organisms living in deep waters and the variations of ocean colors due to...

This video discusses the importance of absorption spectroscopy. A brief idea about ultraviolet and visible spectroscopy is presented in the video. The video shows the light sources used for different regions of operations. The type of...

The relationship between wavelength and frequency is determined. The number of waves, wavelength, and wave speed at each standing wave frequency is determined. The wave speed is measured independent from the standing waves.

So we know that physics got turned upside down at the turn of the 20th century, but how did that all begin? What was the first thing that set this whole chain of events into motion? Well it all started with Planck and the ultraviolet...

When standing waves are allowed at 15, 30, and 45 hertz on a string, then we should not see a standing wave pattern at 22 hertz. Yet, we do in this demonstration. This explains why.

What is color? What is it that determines the color of an object? Good thing we just learned about electromagnetic radiation! Especially the visible spectrum. Let's take a look.

This is a classic experiment that is frequently referred to when describing quantum phenomena, so we definitely have to go over it a little bit. What happens when you pass a beam of light through a screen with two slits? What about when...

This video explores the concept of iridescence, where seemingly colorless or differently colored surfaces change their color when viewed from different angles. It explains how iridescence occurs through mechanisms like thin film and...

Take a look at a bubble and you’ll see all the colors of the rainbow... right? WRONG. Bubbles are actually missing colors!

As you go faster, what happens to time and space? What would happen if you could manage to go the speed of light? Astrum Answers!

Up until a couple centuries ago, we had no idea what light is. It seems like magic, no? But there is no magic in this world, really. Just stuff we don't understand. So let's understand light a little better right now!

Check out the range of possibilities the electromagnetic spectrum gives science. This animated series of short videos acts as a video glossary to define specific scientific terms or concepts in a fun, easy to understand way. In each...

I find photosynthesis fascinating, so to convince you that that is true I have some little nuggets of information for you to impress your friends with. Weâll quickly touch on Water splitting, the production Reactive Oxygen Species, the...

Through live action footage and animated diagrams students will come to understand that refraction is the bending of light rays when they go from one medium to another medium of different density. The program explains why light refracts...

The world is said to be a big place, but the universe is much bigger and what’s more, it’s expanding all the time. How do we know this? Because of the evidence provided by red shift.

We just learned about electron microscopy, so what was the next major innovation in microscopy in the 20th century? That would be fluorescence microscopy, of both the widefield and confocal varieties. How does this work? What is...

Plant Physiology and Chemistry Set: 3. This clip examines the chemical structure of chlorophyll and looks at where and how this molecule assists in carrying out photosynthesis.

Was the orange tree named after the colour or was the colour named after its fruit? And why are things certain colours anyway? How do our eyes see colour? And is it colour or color?

How do waves behave? Badly? In this video we are going to look at how light and sound waves behave. Before we start, you should know that waves can be transverse or longitudinal. Transmission, reflection, refraction, diffraction,...

Almost all life either directly or indirectly depends on one of the most important biological processes on the planet - photosynthesis. Through easy-to-understand graphics and colorful animations, the complex chemical process of...