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Showing 34,951 through 34,975 of 84,689 results

How Did the First Stars and Galaxies Form? (Princeton Frontiers in Physics #1)

by Abraham Loeb

A concise introduction to cosmology and how light first emerged in the universeThough astrophysicists have developed a theoretical framework for understanding how the first stars and galaxies formed, only now are we able to begin testing those theories with actual observations of the very distant, early universe. We are entering a new and exciting era of discovery that will advance the frontiers of knowledge, and this book couldn't be more timely. It covers all the basic concepts in cosmology, drawing on insights from an astronomer who has pioneered much of this research over the past two decades.Abraham Loeb starts from first principles, tracing the theoretical foundations of cosmology and carefully explaining the physics behind them. Topics include the gravitational growth of perturbations in an expanding universe, the abundance and properties of dark matter halos and galaxies, reionization, the observational methods used to detect the earliest galaxies and probe the diffuse gas between them—and much more.Cosmology seeks to solve the fundamental mystery of our cosmic origins. This book offers a succinct and accessible primer at a time when breathtaking technological advances promise a wealth of new observational data on the first stars and galaxies.Provides a concise introduction to cosmologyCovers all the basic conceptsGives an overview of the gravitational growth of perturbations in an expanding universeExplains the process of reionizationDescribes the observational methods used to detect the earliest galaxies

How Do Animals Find Food?

by Bobbie Kalman

With so many species competing for food, animals have developed fascinating methods of finding the food that keeps them fat and happy. How do animals find food? Lets children in on such techniques as pack and solitary hunting, and poisonous animals.

How Do Animals Move?

by Bobbie Kalman Niki Walker

Slithering snakes, jumping kangaroos, flying albatrosses, and swimming salmon--every animal, including humans, has its own unique way of getting around. This beautiful new book explains the how, why, and "are we there yet?" of animals large and small across the globe. Topics include: *how an animal's environment affects its movement *how an animal's skeleton affects its movement *unusual animal movers such as the water-walking basilisk *how a parent helps its young move around

How Do Apples Grow (Lets read-and-find-out Science #Stage 2)

by Betsy Maestro

Describes the life cycle of an apple from its initial appearance as a spring bud to that point in time when it becomes a fully ripe fruit.

How Do Color-blind People See Color?

by Lizzie Wade

To understand what it means to be color-blind, you must first understand how most of us see color.

How Do Owls See?

by Edna Manning

Owl eyes function much like human eyes but with some small differences.

How Do Pushes and Pulls Affect Motion? (Science Inquiry)

by Lisa M. Simons

You push your friend while they swing. You pull open a door. What happens when you push or pull an object? Let’s investigate pushing and pulling forces!

How Do Scientists Explore Space? (Earth, Space, And Beyond Ser.)

by Robert Snedden

How Do Spores Select Where to Settle?

by Matthias Heydt

In this thesis, Matthias Heydt applies digital in-line holography to achieve for the first time a complete three dimensional and real time motion analysis of Ulva zoospores, both in solution and in the vicinity of different surfaces. These results provide previously unknown information about the behavior and mechanism spores use to select a suitable site for settlement. This work gives deeper insight into biofouling algae and stimulates new design strategies for antifouling coatings. Furthermore, the tracking system developed during this research could be used as a new system for assessing the antifouling performance on different surfaces at very early points in time, allowing disentanglement of surface conditioning and interaction of spores with pristine chemistries.

How Do We Classify Materials? (Science Inquiry)

by Yvonne Pearson

Scientists put things into groups so they are easier to study. Materials have different properties. What are they, and how they are grouped? Let’s investigate materials!

How Do We Know What Information Sharing Is Really Worth?: Exploring Methodologies to Measure the Value of Information Sharing and Fusion Efforts

by Brian A. Jackson

How Do We Know What Information Sharing Is Really Worth?: Exporing Methodologies to Measure the Value of Information Sharing and Fusion Efforts (Research Reports)

How Do We Measure Weather? (Discover Meteorology)

by Nancy Dickmann

How fast is the wind blowing? How much moisture is in the air? Meteorologists measure weather conditions to help answer these and other questions. Learn about the tools and systems they use. Find out how these measurements help people plan their days and prepare for any weather.

How Do We Predict Weather? (Discover Meteorology)

by Nancy Dickmann

Will tomorrow be cold or warm? Cloudy or sunny? Wet or dry? Meteorologists make predictions about how weather conditions will change. Find out how they do it and what challenges they face in trying to help people prepare for coming weather conditions.

How Do We Prepare for Severe Weather? (Discover Meteorology)

by Nancy Dickmann

A storm is coming! How do people prepare? What supplies and tools do we need to survive? Find out how people prepare for all kinds of severe weather. From tornadoes to hurricanes and blizzards to floods, we can be ready for anything.

How Do We Sense Someone Behind Us?

by Lizzie Wade

How do humans sense when someone is behind them? This Q & A explains the science of peripheral vision.

How Do We Use Light? (Science Inquiry)

by Emily Raij

Light is all around us. What is light? Where does it come from? How does it help us see? Readers investigate and read straightforward text accompanied by vibrant photos to learn all about light.

How Do Weather And Climate Affect Our Lives?: Student Activity Guide

by The Smithsonian Institution

NIMAC-sourced textbook

How Do You Feel?: An Interoceptive Moment with Your Neurobiological Self

by A. D. Craig

A book that fundamentally changes how neuroscientists and psychologists categorize sensations and understand the origins and significance of human feelingsHow Do You Feel? brings together startling evidence from neuroscience, psychology, and psychiatry to present revolutionary new insights into how our brains enable us to experience the range of sensations and mental states known as feelings. Drawing on his own cutting-edge research, neurobiologist Bud Craig has identified an area deep inside the mammalian brain—the insular cortex—as the place where interoception, or the processing of bodily stimuli, generates feelings. He shows how this crucial pathway for interoceptive awareness gives rise in humans to the feeling of being alive, vivid perceptual feelings, and a subjective image of the sentient self across time. Craig explains how feelings represent activity patterns in our brains that signify emotions, intentions, and thoughts, and how integration of these patterns is driven by the unique energy needs of the hominid brain. He describes the essential role of feelings and the insular cortex in such diverse realms as music, fluid intelligence, and bivalent emotions, and relates these ideas to the philosophy of William James and even to feelings in dogs.How Do You Feel? is also a compelling insider's account of scientific discovery, one that takes readers behind the scenes as the astonishing answer to this neurological puzzle is pursued and pieced together from seemingly unrelated fields of scientific inquiry. This book will fundamentally alter the way that neuroscientists and psychologists categorize sensations and understand the origins and significance of human feelings.

How Do You Find an Exoplanet?

by John Asher Johnson

Alien worlds have long been a staple of science fiction. But today, thanks to modern astronomical instrumentation and the achievements of many enterprising observational astronomers, the existence of planets outside our solar system--also known as exoplanets--has moved into the realm of science fact. With planet hunters finding ever smaller, more Earth-like worlds, our understanding of the cosmos is forever changed, yet the question of how astronomers make these discoveries often goes unanswered.How Do You Find an Exoplanet? is an authoritative primer on the four key techniques that today's planet hunters use to detect the feeble signals of planets orbiting distant stars. John Johnson provides you with an insider's perspective on this exciting cutting-edge science, showing how astronomers detect the wobble of stars caused by the gravitational tug of an orbiting planet, the slight diminution of light caused by a planet eclipsing its star, and the bending of space-time by stars and their planets, and how astronomers even directly take pictures of planets next to their bright central stars.Accessible to anyone with a basic foundation in college-level physics, How Do You Find an Exoplanet? sheds new light on the prospect of finding life outside our solar system, how surprising new observations suggest that we may not fully understand how planets form, and much more.

How Do You Go to the Bathroom in Space?: All the Answers to All the Questions You Have About Living in Space

by William R. Pogue

Have you ever wondered what it's really like for an astronaut in outer space? From the exciting moments to the day-to-day details, from the serious to the humorous, you'll find answers to every question you've ever had about living in space!What does it feel like to be weightless? Would a sneeze propel you backward? What happens to your body in space? And, most importantly, how do you go to the bathroom in space?Find out the answers from the astronaut who for more than a decade held the world record for the number of days spent living in space!To take advantage of the renewed interest in space travel, thanks to the success of Packing for Mars, this re-release of the bestseller (with over a quarter million copies in print) features a fresh look, dozens of authentic NASA photographs, and an introduction by John Glenn.At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

How Do You Know It's Fall?

by Lisa M. Herrington

These charming science books, written for the youngest readers, will teach children how to read the cues from nature and be able to differentiate one season to the next. Simple hands-on experiments that introduce young readers to everyday science Fun activities that allow young scientists to make observations about the world around them Fast facts - offering fun, sometimes little known facts about the subject Low, accessible reading level for emergent and struggling readers Glossary with pictures provides a visual review of important vocabulary terms Additional content for further learning on this subject available at www. factsfornow. scholastic. com

How Do the Brain's Electrical Impulses Become Thoughts?

by Lizzie Wade

How do brain impulses translate into a state of mind? This Q & A explores the science of the brain and gives an insight into feelings and abilities.

How Does A Waterfall Become Electricity? (How Does It Happen)

by Robert Snedden

What is the world's tallest waterfall?What is the world's tallest waterfall? How do dams help generate water power? What happens when a waterwheel spins? This series explores the causes and effects that shape our world. From the underwater volcanoes that sprout into islands, to the rushing waterfalls that spark electric currents, this series demonstrates how both natural and man-made phenomena occur.

How Does Germline Regenerate? (Convening Science: Discovery at the Marine Biological Laboratory)

by Kate MacCord

A concise primer that complicates a convenient truth in biology—the divide between germ and somatic cells—with far-reaching ethical and public policy ramifications. Scientists have long held that we have two kinds of cells—germ and soma. Make a change to germ cells—say using genome editing—and that change will appear in the cells of future generations. Somatic cells are “safe” after such tampering; modify your skin cells, and your future children’s skin cells will never know. And, while germ cells can give rise to new generations (including all of the somatic cells in a body), somatic cells can never become germ cells. How did scientists discover this relationship and distinction between somatic and germ cells—the so-called Weismann Barrier—and does it actually exist? Can somatic cells become germ cells in the way germ cells become somatic cells? That is, can germ cells regenerate from somatic cells even though conventional wisdom denies this possibility? Covering research from the late nineteenth century to the 2020s, historian and philosopher of science Kate MacCord explores how scientists came to understand and accept the dubious concept of the Weismann Barrier and what profound implications this convenient assumption has for research and policy, from genome editing to stem cell research, and much more.

How Does Government Listen to Scientists?

by Claire Craig

This Palgrave Policy Essential draws together recent developments in the field of science in government, policy and public debate. Practice and academic insights from a wide variety of fields have both moved on in the last decade and this book provides a consolidated survey of the relatively well established but highly scattered set of insights about the provision of deeply technical expertise in policy making (models of climate or disease, risk, Artificial Intelligence and ethics, and so on). It goes on to link this to emerging ideas about futures thinking, public engagement, narrative, and the role of values and sentiment alongside the place of scientific and scholarly insights in public decision-making and debate. The book offers an accessible overview aimed at practitioners; policy-makers looking to understand how to work with researchers, researchers looking to work with policy-makers, and the increasing numbers and types of “brokers” - people working at the interface, in science advice, public engagement and communication of science, and in expert support to decision-making in the public and private sectors. In addition to outlining recent insights and placing them in the established frameworks of authors such as Pielke and Jasanoff, the book also brings in relevant areas less traditionally associated with the subject but of increasing importance, such as modelling, futures and narrative.

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Showing 34,951 through 34,975 of 84,689 results