Bright pillars of light... clouds of glowing dust... shimmering discs floating around the sun... signs of extraterrestrial activity, or is there a more rational and scientific explanation for this phenomenon?

If you’ve been brave enough to open your eyes underwater, you might have noticed that everything is blurry. But fish have no trouble finding their way beneath the waves. So why can’t we see as clearly below as we do above?

Bright pillars of light... clouds of glowing dust... shimmering discs floating around the sun... signs of extraterrestrial activity, or is there a more rational and scientific explanation for this phenomenon?

Studying Non-Crystalline Materials

A substance that lacks a regular and ordered arrangement of its constituent particles is referred to as an amorphous solid. Amorphous solids include things like proteins, plastics, glass,...

Clear as Glass: A Guide to Crystalline Solids

Crystalline solids consist of substances with their constituents arranged in a precise and organized manner. A wide variety of naturally occurring solid substances can be found in...

As part of the “Picture Perfect Chemistry” celebration for National Chemistry Week 2024, Dr. Boyd “The Chemist” explains what the refractive index is, and then does a simple experiment to highlight the concept. This is the 1st in a...

As part of the “Picture Perfect Chemistry” celebration for National Chemistry Week 2024, Dr. Boyd “The Chemist” makes a beaker disappear! Follow along for the experiment and an explanation. 0:00 – Introduction 0:16 – What you need 0:26 –...

As part of the “Picture Perfect Chemistry” celebration for National Chemistry Week 2024, Dr. Boyd “The Chemist” explains and demonstrates the effect of the refractive index using a marker, paper, and water in a glass. 0:00 – Introduction...

As part of the “Picture Perfect Chemistry” celebration for National Chemistry Week 2024, Dr. Boyd “The Chemist” does a simple experiment to highlight the concept of refractive index. This is part 4 in the series 0:00 – Introduction 0:16...

The fake puddles of water that we see on the road on a sunny day is due to an optical phenomenon called a mirage, which is caused by the refraction (or bending) of light rays due to different temperatures of the air above the road. On a...

A measure of the speed of light in a medium, defined as the ratio of the speed of light in a vacuum, to its speed in the medium under consideration.
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A Twig Science
Glossary Film.
Key scientific terms defined in...

A criminal has committed burglary and escaped the scene without leaving a fingerprint or trace of DNA. How can forensic scientists still solve the crime? Chemistry - Atoms And Bonding - Learning Points. There are many forensic techniques...

Discover 'Can Light Waves Travel At Different Speeds?' to learn how light speeds up and slows down! A bright, quick look for young scientists.

An explanation of how light passes through transparent, translucent and opaque objects. The science is told in an imaginative way using cutting-edge technology through the character of Leia Light - an individual who has the superpower to...

The fake puddles of water that we see on the road on a sunny day is due to an optical phenomenon called a mirage, which is caused by the refraction (or bending) of light rays due to different temperatures of the air above the road. On a...

The video demonstrates how to investigate the refractive index of a material by measuring the angle of incidence and refraction of light as it passes through a block of glass. The narrator explains the concept of refraction and shows how...

The video explains the concept of refractive index and how it determines the bending of light as it crosses the boundary between two different media. The video also demonstrates how to calculate the refractive index of a material, angle...

Blue is a relatively rare color in nature. Learn how texture, water, and other things can bend and distort light to make an object look deceptively blue.<b<br/>r/>

Colors part 4

In this video, we learn about the science behind apparent sunrise and delayed sunset. We explore the phenomenon of refraction of light and its effects on the direction and speed of light as it passes through different mediums. Through a...

This video provides an explanation of the phenomenon of total internal reflection, which occurs when a wave travels from one material to another and is reflected back instead of refracting. The video also explains how to calculate the...

It explains the concept of polarised wave with the help of activity, activity involved polaroid sheets, polarization by reflection, polarization by scatterind and brewsters law.

Optical fibres can carry information using visible light and something called total internal reflection. It works by bouncing waves off the sides of a thin piece of plastic or glass until it emerges at the end. Total internal reflection...

Color and luster are two important macroscopic characteristics of minerals. How can we identify and classify minerals using these characteristics? And why do the same metals show up as different colors in different...