TED-Ed
TED-Ed: Light waves, visible and invisible - Lucianne Walkowicz
Each kind of light has a unique wavelength, but human eyes can only perceive a tiny slice of the full spectrum -- the very narrow range from red to violet. Microwaves, radio waves, x-rays and more are hiding, invisible, just beyond our...
Curated Video
Sunscreen Protection Experiment - Summer Science Series
How important is it to wear sunscreen when out in the Sun. Find out with this simple experiment!
Curated Video
How to Light a Snake Tank
Howcast - Learn how to properly light a snake tank in this Howcast video about pet snakes.
Curated Video
How to Buy a Bug Zapper
Howcast - A bug zapper is an electronic insect-control system that uses light to attract insects, and then kills them by electrocution. If you're bugged by bugs and want to live pest-free, you need to know what to look for in a bug zapper.
Curated Video
Photoreactivation or Light Repair of DNA
Ultraviolet (UV) light acts as a physical mutagen by inducing pyrimidine dimers, especially thymine dimers, which distort DNA structure and hinder transcription and replication. The damage can be repaired by photo reactivation, a process...
Veritasium
Why Scorpions Glow in the Dark
Finding scorpions in the desert at night is surprisingly easy with an ultraviolet torch since scorpions fluoresce under UV light. This phenomenon, where scorpions absorb UV light and re-radiate it as bright neon green, isn't unique to...
Curated Video
Ozone layer
A layer in the Earth's atmosphere at 13 to 20km altitude with an unusually high concentration of ozone gas. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Curated Video
Ultraviolet light
Electromagnetic radiation in the region of the spectrum between visible light and x-rays, about ten to 400 nanometres in wavelength. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Factpack: Animal Vision
The different ways animals view the world, from colour perception to UV rays. Physics - Waves - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to grab attention at the start of...
Curated Video
Healthy Beauty
Your outward appearance can be affected by what you put in your body as well as external factors. What are the vital nutrients for beautiful skin, hair and nails? Biology - Healthy Living - Learning Points. A balanced diet is the key to...
Curated Video
Bond Fission Explained: Homolytic vs. Heterolytic Splits
Bond fission, the process of breaking chemical bonds, can occur in two ways: homolytic and heterolytic. In homolytic fission, the bond breaks evenly, with each atom receiving one electron, resulting in the formation of free radicals. In...
Curated Video
GCSE Physics - Visible and UV Light #67
This video covers: - The different colours of visible light - How light is used is optical fibres - The concept of fluorescence with ultraviolet radiation - How ultraviolet radiation can be used in security General info: - Suitable for...
Curated Video
Machining Subminiature Features on Fibre Optics: The Dicing Process
As part of a project with the Optoelectronics Research Centre at the University of Southampton, we were required to machine two 100-micron wide grooves on a piece of flat optical fibre. In this video, we show exactly how this is done.
Curated Video
Bioluminescent Mysteries
Marine biologist Edie Widder at the Ocean Research & Conservation Association gives us a taste of some of what we don’t know about the fascinating phenomenon of marine bioluminescence.
Curated Video
I WONDER - What Is A Fluorescent Lightbulb?
This video is answering the question of what is a fluorescent lightbulb.
Curated Video
The Electromagnetic Radiation Spectrum
This video will explain the electromagnetic radiation spectrum, what it is, and how it can be used to observe space objects.
Nature League
Does the Full Moon Affect Animal Behavior? - From A to B
This week on Nature League, Adrian asks Brit if a full moon has any measurable effect on humans and non-human animals.
Catalyst University
Infrared (IR) Light Therapy Theory, Use, & Parameters
In this video, we explore the theory, use, and parameters with infrared (IR) light therapy, a sub-type of thermotherapy with a different mechanism.
Curated Video
Hazards of Electromagnetic Radiation: Health Risks and Exposure
This lecture video discusses the health risks associated with exposure to electromagnetic waves on the electromagnetic spectrum. The video covers different types of electromagnetic radiation, from microwaves to X-rays and gamma rays, and...
Catalyst University
Infrared (IR) Light Therapy | Theory, Use, & Parameters
In this video, we explore the theory, use, and parameters with infrared (IR) light therapy, a sub-type of thermotherapy with a different mechanism.
Healthcare Triage
How Can I Grocery Shop Safely? When Is Someone Sick Enough for the ER? Coronavirus Q&A: Apr. 8 2020
Aaron's back answering your submitted questions about things related to the COVID-19. If you'd like to submit a question for a future episode you can do so at healthcaretriage.info 00:22 MYTH: Vitamin D/vitamin C/Echinacea/essential oils...
Mazz Media
Bailey's Big Back Yard: It's Hot
Bailey is planning a fun summer day's activity with Boggs. Bailey realizes that knowing what the weather will be is important and comes to understand that the middle of the day is the hottest time. They learn about keeping themselves and...