Low-pressure (MF and UF) membranes can remove nearly all microbial pathogens as long as the integrity of the membranes remains intact. Membrane integrity testing identifies tiny defects in MF and UF membranes. The book describes various methods for membrane integrity testing. You will learn the types and causes of integrity breaches, tests to discover them, and how to establish a membrane integrity testing program.To comply with disinfection regulations, utilities using low-pressure membranes for drinking water treatment must validate and verify the removal efficiency of the targeted contaminant through integrity testing. Owners and operators of water treatment systems that use MF or UF membranes should use the testing methods described in this book to protect public health.

It's Time to Take a Hike in Beautiful Arizona! The best way to experience Phoenix is by hiking it! Get outdoors with Arizona writer and hiking expert Charles Liu as he helps you find and enjoy the top hikes within 60 miles of the city. These selected trails transport you to scenic overlooks, wildlife hot spots, ancient ruins, and petroglyphs that renew your spirit and recharge your body. Explore some of the country's finest city-owned wilderness preserves: Phoenix Sonoran Preserve, South Mountain Park/Preserve, and Scottsdale's McDowell Sonoran Preserve. Hike at 7,000 feet at Brown's Peak, Mount Ord, and Mount Peeley. See Arizona's only Wild River Area at the Mazatzal Wilderness in Tonto National Forest. With Charles Liu as your guide, you'll learn about the area and experience nature through 60 of Phoenix's best hikes! Each hike description features key at-a-glance information on distance, difficulty, scenery, traffic, hiking time, and more, so you can quickly and easily learn about each trail. Detailed directions, GPS-based trail maps, and elevation profiles help to ensure that you know where you are and where you're going. Tips on nearby activities further enhance your enjoyment of every outing. Whether you're a local looking for new places to explore or a visitor to the area, 60 Hikes Within 60 Miles: Phoenix provides plenty of options for a couple hours or a full day of adventure, all within about an hour from Phoenix and the surrounding communities.

Revised for the first time in a decade, the completely updated third edition of The Handy Physics Answer Book makes physics and its impact on us, the world, and the universe fun and easy to understand. It disposes with the mathematical explanations and scientific jargon often associated with physics and instead takes a more conceptual approach - all written in everyday English.

The Cosmos Explained is an exciting and beautifully designed book that charts the life of our universe from the Big Bang to the present day and beyond. Starting with the moment of the Big Bang-at exactly one ten-millionth of a trillionth of a trillionth of a trillionth of a second-this book charts a history of space and time all the way through the evolution of our solar system, the birth of stars and the formation of life on Earth, to the future of our galaxy and beyond. With deeply insightful and fascinating text by Hayden Planetarium Associate Professor Charles Liu, who also hosts the immensely popular StarTalk podcast, this book is an accessible and enthralling gateway into the mysteries of space, time and the universe. Pinpoint exactly where you are in space and time using the timeline at the bottom of every page, and explore the history of the cosmos and the science behind it through beautiful telescope images and striking illustrations. Packaged in a unique retro design that reflects the 1960s cosmonaut era but still feels modern and relevant today, this title is as rich with information as it is with stunning visualisations of the concepts and bodies detailed within. An ideal gift for anyone interested in space or curious about the cosmos, The Cosmos Explained is a unique and entertaining timeline of life, the universe, and everything!

From planetary movements and the exploration of our solar system to black holes and dark matter, this comprehensive reference simplifies all aspects of astronomy with an approachable question-and-answer format. With chapters broken into various astronomical studies--including the universe, galaxies, planets, and space exploration--this fully updated resource is an ideal companion for students, teachers, and amateur astronomers, answering more than 1,00 questions, such as Is the universe infinite? What would happen to you if you fell onto a black hole? What are the basic concepts of Einstein's special theory of relativity? and Who was the first person in space?

It's Time to Take a Hike in Beautiful Arizona! The best way to experience Phoenix is by hiking it! Get outdoors with Arizona writer and hiking expert Charles Liu as he helps you find and enjoy the top hikes within 60 miles of the city. These selected trails transport you to scenic overlooks, wildlife hot spots, ancient ruins, and petroglyphs that renew your spirit and recharge your body. Explore some of the country's finest city-owned wilderness preserves: Phoenix Sonoran Preserve, South Mountain Park/Preserve, and Scottsdale's McDowell Sonoran Preserve. Hike at 7,000 feet at Brown's Peak, Mount Ord, and Mount Peeley. See Arizona's only Wild River Area at the Mazatzal Wilderness in Tonto National Forest. With Charles Liu as your guide, you'll learn about the area and experience nature through 60 of Phoenix's best hikes! Each hike description features key at-a-glance information on distance, difficulty, scenery, traffic, hiking time, and more, so you can quickly and easily learn about each trail. Detailed directions, GPS-based trail maps, and elevation profiles help to ensure that you know where you are and where you're going. Tips on nearby activities further enhance your enjoyment of every outing. Whether you're a local looking for new places to explore or a visitor to the area, 60 Hikes Within 60 Miles: Phoenix provides plenty of options for a couple hours or a full day of adventure, all within about an hour from Phoenix and the surrounding communities.

This beautifully illustrated companion to celebrated scientist Neil deGrasse Tyson's popular podcast and National Geographic Channel TV show is an eye-opening journey for anyone curious about the complexities of our universe. For decades, beloved astrophysicist Neil deGrasse Tyson has interpreted science with a combination of brainpower and charm that resonates with fans everywhere. In 2009, he founded StarTalk, the wildly popular podcast that became an Emmy-nominated talk show on the National Geographic Channel. Tyson's pioneering, provocative book will take the greatest hits from the airwaves to the page in one smart, richly illustrated compendium. Featuring vivid photography, thought-provoking trivia, enlightening facts, and fun quotes from science and entertainment luminaries like Bill Nye and Dan Aykroyd, StarTalk reimagines science's most challenging topics--from how the brain works to the physics of comic book superheroes--in a relatable, humorous way that will delight fans and new readers alike.