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Black Body Mystery: The Radiation Phenomenon
Black body radiation is a fundamental topic in physics that has significantly influenced our understanding of quantum mechanics. A black body is an idealized physical object that absorbs all electromagnetic radiation, regardless of...
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What is Change Management? Project Management in Under 5
Change Management is like a companion to Project Management. To be skilled at either, you need to be capable at both. So, what is Change Management?
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Lens
A transparent material shaped to refract light, such that it converges or diverges from a single point. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Line spectra
A set of well-defined lines within the electromagnetic spectrum, emitted by hot or excited matter. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Spectrometer
An instrument that measures the intensity of electromagnetic radiation over a range of wavelengths. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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Spectrum
A continuous range of frequencies of electromagnetic radiation, such as that produced when white light is refracted through a prism. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
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Angstrom
A very small unit of length equivalent to one ten-millionth of a millimetre, or 10-10m. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
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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...
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Why is the Sky Blue? - Sky Color Explained
The atmospheric composition of the sky affects the colours we see. From blue horizons to red sunsets, why do we see colours the way we do? Physics - Our Solar System - Learning Points. Light is made up of different wavelengths. Our...
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What is a Rainbow? - Light Refraction
What is refraction and how does it produces the colours and shape of a rainbow? Earth Science - Weather - Learning Points. Rainbows are beautiful tricks of the light. Rainbows are caused when light is reflected and refracted by water....
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Colour
The world appears to be a colourful place, but what are colours? What properties of light determine what colour we see? Physics - Waves - Learning Points. Colour is how our brains perceive different wavelengths of light. Newton...
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The Electromagnetic Spectrum
The range of electromagnetic radiation in the electromagnetic spectrum is huge. Where does this radiation come from and how do the frequencies and wavelengths vary? Physics - Waves - Learning Points. Electromagnetic radiation is all...
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Hi-Fi Engineering
A demonstration of how hi-fi speakers use a clever combination of electronics and magnetism to convert electrical impulses into sound waves, which our brain then interprets as music. Physics - Electricity And Circuits - Learning Points....
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What Makes Up the Electromagnetic Spectrum?
From radio waves to gamma rays, the electromagnetic spectrum is useful in different ways. How does this radiation differ and how can they be used? Physics - Waves - Learning Points. Electromagnetic radiation exists along a continuous...
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Flame Colours and Spectroscopy
The discovery by Robert Bunsen which allowed elements to be identified more easily, and even led to the discovery of new ones. Chemistry - Atoms And Bonding - Learning Points. Gustav Kirchoff assembled the first spectroscope - two...
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Splitting Light
We use a prism to split white light into its constituent colours. Light is passed through a slit in a screen before it hits the prism. The prism refracts the light and we can see the different colours. A second slit can be used to see...
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Visible light
The portion of the electromagnetic spectrum that our eyes can see. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
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White light – What happens next?
Light is shone through a glass prism ... what happens next? Physical processes -Light - White light Learning Points White light can be split into the spectrum of colours by a prism. A Twig Tidbit Film - What happens next? A short section...
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White light – Big reveal
What is it? ... It's a prism refracting light! Physical processes - Light - White light A Twig Tidbit Film - Big Reveal. The image zooms out from an extreme close-up to full frame. The children have to guess what the image is.
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White light – Clip
There are many types of light we cannot see ... find out how special cameras can detect infrared light. Physical processes - Light - White light Learning Points White light is made up from many different colours. Infrared cameras reveals...
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Why is the Sky Blue? - Atmospheric Colors
Find out why the sky is blue. Physical processes -Light - White light Learning Points The Sun emits white light. White light can be split into the spectrum of colours by a prism. Different colours have different wavelengths. A Twig...
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Isaac Newton
Find out how Sir Isaac Newton devised his laws of motion and explained how the universe works. Physical processes - Force and motion - Action and reaction Learning Points Sir Isaac Newton devised laws that explain how the Universe works....
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The Spitzer Space Telescope
The Spitzer Space Telescope is one of NASA s four orbiting telescopes each observing in differing areas of the spectrum. Spitzer detects images in the infrared region, which shows activity not evident in the visible wavelengths.