By reading this book, you will develop the skills to perceive a space and its contents in light, and be able to devise a layout of luminaires that will provide that lit appearance.Written by renowned lighting expert Christopher (Kit) Cuttle, the book:explains the difference between vision and perception, which is the distinction between providing lighting to make things visible, and providing it to influence the appearance of everything that is visible;demonstrates how lighting patterns generated by three-dimensional objects interacting with directional lighting are strongly influential upon how the visual perception process enables us to recognize object attributes, such as lightness, colourfulness, texture and gloss; reveals how a designer who understands the role of these lighting patterns in the perceptual process may employ them either to reveal, or to subdue, or to enhance the appearance of selected object attributes by creating appropriate spatial distributions of light; carefully explains calculational techniques and provides easy-to-use spreadsheets, so that layouts of lamps and luminaires are derived that can be relied upon to achieve the required illumination distributions. Practical lighting design involves devising three-dimensional light fields that create luminous hierarchies related to the visual significance of each element within a scene. By providing you with everything you need to develop a design concept - from the understanding of how lighting influences human perceptions of surroundings, through to engineering efficient and effective lighting solutions – Kit Cuttle instills in his readers a new-found confidence in lighting design.
The smallest thing can change the path of history. The year is 1976, and the British Empire still spans the globe. Coal drives the world, and the smog of it hangs thick over the canals of London. Clara Calland is on the run. Hunted, along with her scientist mother, by Menshevik spies and Imperial soldiers, they flee Ireland for London. They must escape airships, treachery and capture. Under flooded London's canals they join the rebels who live in the dank tunnels there. Tim Barnabas is one of the under people, born to the secret town of drowned London, place of anti-imperialist republicans and Irish rebels, part of the Liberty - the people who would see a return to older values and free elections. Seeing no further than his next meal, Tim has hired on as a submariner on the Cuttlefish, a coal fired submarine that runs smuggled cargoes beneath the steamship patrols, to the fortress America and beyond. When the ravening Imperial soldiery comes, Clara and her mother are forced to flee aboard the Cuttlefish. Hunted like beasts, the submarine and her crew must undertake a desperate voyage across the world, from the Faeroes to the Caribbean and finally across the Pacific to find safety. But only Clara and Tim Barnabas can steer them past treachery and disaster, to freedom in Westralia. Carried with them--a lost scientific secret that threatens the very heart of Imperial power.
She may be spineless, but this invertebrate has a lot of backbone!Little Red jets off to take fresh crab cakes to her grandmother. Everything goes swimmingly—until a big, bad tiger shark attacks! Little Red has to use her cuttlefish defenses—camouflage, quick reflexes, and squirting an ink cloud—to outwit the shark, combining science and spunk. Gorgeous illustrations depict the reef and its adorable main character with lively detail. The authors include information about cuttlefish and tiger sharks, addressing Common Core standards, as well as resources for further reading. This aquatically fractured fairy tale will tickle your cuttlebone and spark your curiosity. After reading, remember to sleep tight—and don’t let the copepods bite!