Learn more about light and the EMS – electromagnetic spectrum around us:

	EarthSky – Daily updates on your cosmos and the world: – What is the EMS?
	ESA – European Space Agency. Shaping the development of Europe’s space capability: – Europe’s gateway to space.
	Atmospheric Optics – Light and our atmosphere: – Rainbows, halos, glories, coronas and many more.
	IDA – International Dark Sky: – Protecting the night skies for present and future generations.
	NASA Science – Share the science: – A tour of the electromagnetic spectrum.
	Hubble Site – More than meets the eye: – EMS – more to light than meets the eye.
	CSA – Canadian Space Agency – Northern lights: – Auroras, AuroraMAX observatory and tips on how to view and photograph auroras.
	ARUP – Lighting design: – Creative brilliance and expert advice from specialist lighting designers.
	Northrop Grumman – Electronic warfare: – Design, development, and construction of some of the world’s most advanced products.

Light, Dark, and the Electromagnetic Spectrum

Since the dawn of time, electromagnetic energy has permeated through the universe and emptiness of space, surrounding and interacting with everything it touches, illuminating, destroying, and giving life.

The colourful section of the electromagnetic spectrum we see in the form of visible light, rainbows and other phenomena is tiny when compared to its vast entirety. Using visible light and many other parts of the electromagnetic spectrum have become common everyday occurrence for the majority of people on Earth, as it’s been integrated into our lives in ways that we don’t even think twice about it.

Natural sunlight, starlight, moonlight and firelight have all played a vital role in the evolution, expansion and migration of the human race. While today, our study, deliberate manipulation and application of the EMS has taken us to the forefront of technological advancement.

This book illuminates what light is and the different histories of various lighting technologies. It also illustrates the many parts of the electromagnetic spectrum, light and its effects, the endless ways we have harnessed its energy, our early spiritual connections with light, and how today we interact and live with its essential and necessary influence.

Author Bio – Scott Gracie

Want to learn more about light? The EMS has fascinated Scott since his early teens, tinkering with electronics as a hobby. That curiosity deepened once he studied Electrical and Electronics after school at Randwick North High School in Sydney, which formally introduced him to the lighting industry.

In 1998, Scott began building custom light fittings and lamps in his father’s garage. Formal lighting-design qualifications later carried him into project management and design work across many levels of the industry, and over twenty-five years on, he has worked on infrastructure, commercial and architectural lighting projects throughout Australia. This page draws on sources ranging from lighting-industry standards to space agency research to explain the EMS. He is a member of the Illuminating Engineering Society of Australia & New Zealand, the Colour Society of Australia, the International Dark Sky Association, the Astronomical Society of the Pacific, and the Australian division of the CIE.