We use two cans, one painted black and the other painted white, to investigate heat absorption. The containers are placed in front of a heat source and the temperature change is recorded. This shows that the black container absorbs heat...

The lowest frequency range of electromagnetic radiation, with wavelengths from millimetres to many kilometres. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...

High energy electromagnetic radiation, with extremely short wavelengths, often smaller than an atom. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

Electromagnetic radiation present between ultraviolet and gamma rays on the electromagnetic spectrum, with wavelengths from about 0.01 to 10 nanometres. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using...

By the end of this learning object, the student will be able to: Recognize the spectrum colors.86731

Simply switching off your phone data won’t completely eliminate radio wave emissions, even when your phone is on standby mode. This is because the phone needs to be connected to a nearby cell tower to be online and available for calls...

The song name is displayed on the radio with the help of a specific communications protocol called the Radio Data System, which embeds small bits of information in FM broadcast signals. RDS allows broadcasters to send much more than just...

This video is explaining how X-rays work for kids.

This video covers:

- The idea that objects can absorb and emit energy in the form of radiation, and that this can affect their temper
ature
- What determines which type of radiation
is emitted
- Wavelength-in
tensity...

This video covers:

- The structure of the
atom
- The difference between protons, neutrons and
electrons
- Wha
t isotopes are <
br/>- Energy

levels
-
Ionisation

General info:
-
Suitable for...

Dr. Forrester describes the different types of energy, including potential, kinetic, mechanical, and chemical energy as well energy created by light, sound, and heat.

A black body is a theoretical or imaginary object that perfectly absorbs all incoming electromagnetic radiation, and also emits radiation, like heat and visible light, based on its temperature. A black body is considered theoretical...

This video will explain the electromagnetic radiation spectrum, what it is, and how it can be used to observe space objects.

The video discusses the production of electromagnetic waves from atoms and nuclei. It covers different examples of producing radio waves, microwaves, x-rays, gamma rays, infrared radiation, visible light, and ultraviolet light. The video...

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...

This video discusses what thermal energy is and describes how it is generated by radioactive decay and how it contributes to geothermal energy. Viewers will also learn about solar energy, what it is and how it is created by fusion....

Dark matter is an invisible matter that occupies more than half of the space of the observable universe but cannot be detected directly as it doesn’t interact with electromagnetic radiation, like visible light and gamma rays. One of the...

The video explores the mysteries of high energy astronomy, focusing on gamma ray bursts and their origins. It discusses the evolution of our understanding of the universe, from debates about the scale of the galaxy to the discovery of...

How can you use an infrared camera to see through walls? To inspect the scene of a crime? To catch a thief in hiding?! This cool device attaches to your smartphone and has an infrared/visible light camera combo that allows you to see the...

Part 2 of the press conference announcing the first direct detection of gravitational waves -- February 11, 2016. The press conference continued after the live webcast concluded. See the remainder here for the first time.

Yes. Microwaves and radio waves are physically the same, i.e. both are forms of electromagnetic radiation. Some microwave rays can leak out and interfere with WiFi signals. We are basically constantly surrounded by electromagnetic...

In this video, we use the following equations to interconvert between and do calculations with Frequency (λ), Wavelength (𝝂), & Energy: 1) E=h𝝂 2) 𝝂=c/λ 3) E=hc/λ

The universe is microwaving itself. A mystery signal discovered in the 1960s led to a Nobel prize. In this video, Dianna explores one of the most mysterious discoveries in physics - a constant microwave signal that seemed to be coming...

In this video, the presenter discusses the interaction between electromagnetic waves and charged particles. The video covers examples of radio waves interacting with electrons and how they can create alternating currents in appropriate...