Showing results by author "A. American" in All Categories

For going on two decades, Scientific American’s “Ask the Experts” column has been answering reader questions on all fields of science. We’ve taken your questions from the basic to the esoteric and reached out to top scientists, professors, and researchers to find out why the sky is blue or whether we really only use 10 percent of our brains. Now, we’ve combed through our archives and have compiled some of the most interesting questions (and answers) into a series of books. 

Have you ever wondered why humans lost their body hair? Curious about what causes a hangover? Or what makes that popping sound when we crack our knuckles? What about the oft-cited maxim that we only use 10 percent of our brains? Professors, scientists, and biologists provide answers that are at once accurate, understandable, and sometimes just plain funny.

Months after the EMP crippled the country, Charlie concentrated on survival. Unfortunately, that wasn’t working out too well. Russians and Chinese soldiers were now part of the occupation, while the loss of several of her friends to state sanctioned gangs had pushed her to the edge. It was time to fight back. Combatting a tyrannical government seemed beyond sane, but every journey starts with just one step. For Charlie and her group, that time had come. Retribution was to be meted out and with the help of a growing Resistance, reclaiming the country seemed more plausible by the day.

For nearly 30 years, American Heritage Girls® has come alongside families and youth ministry leaders in offering Christ-centered, girl-focused character development. Through the Raising Godly Girls® Podcast, presented by American Heritage Girls, listeners get to tap into the advice that seasoned AHG leaders have gleaned over three decades of ministering to girls. Plus, hear from industry experts with solutions to a broad range of issues impacting today’s girls. Get Biblically-sound and actionable tips from fellow parents, volunteers, and thought leaders on how to raise up a girl after God...

Charlie finds herself caught in the city as it degenerates into chaos following an EMP attack. Charlie, a successful pharmaceutical sales rep, has no background in prepping or survival. Thrust into a do or die situation, she quickly learns that leaders in Washington are working to change the country as she knows it. Her world has become a race to freedom while attempting to avoid capture by the new government's agents.

In this audiobook, The Human Odyssey, we explore the evolution of those characteristics that make us human. The first section looks at our family tree and why some branches survived and not others. Swings in climate are emerging as a factor in what traits succeeded and failed; meanwhile, DNA analyses show that Homo sapiens interbred with other human species, which played a key role in our survival. 

Creativity was long thought to be a gift from the muses, a special quality of a select minority of people. Fortunately, more recent studies have debunked this belief and have shown promise for techniques to help us all boost our creative potential. Nature gives some people a genetic edge, but nurture has a large role in developing creative genius. In this audiobook, we look at this difficult-to-define quality from all angles: where creativity comes from, lessons we can learn from creative geniuses, and how to cultivate creativity.

Boy or girl? Even before a person is born, that’s the first thing everyone wants to know - underscoring just how much value human societies of all types place on gender. In His Brain, Her Brain, we take a closer look at the anatomical, chemical, and functional differences in the brains of men and women - as well as some surprising similarities. For instance, studies of infants find few differences in cognitive skills between boys and girls; but there is no denying that boys love trucks, whereas girls prefer dolls.

In the two decades since astronomers first discovered the existence of a planet outside of our solar system, “exoplanetology” has become the hottest specialty in astrophysics. Scientists young and old, inspired by the thought of finding either another habitable world or the Holy Grail of space exploration - life itself - flocked to be part of this burgeoning field. With so much brainpower on hand, it’s no wonder that investigative techniques advanced more quickly than anyone would have thought.

Neal managed to survive the initial weeks after an EMP decimated the grid and all critical infrastructures. Using his cunning, skills, and mindset, he navigated the harsh new landscape. Life became harder when the weeks turned to months but still he survived. As he settled into his new normal, complacency set in with it. At first everything was fine, but then the deadly realities came to his doorstep. When tragedy struck all he wanted to do was give up, but a promise he had made kept him going, barely.

Genetic engineering, which refers to the direct manipulation of DNA, became a reality in the 1970s. In this audiobook, we take a look at how far the field has come, starting with a revolutionary gene-editing tool called CRISPR that’s taking the research world by storm. We then examine how CRISPR and other approaches are being investigated to treat disease, the fantastic-sounding research being done in synthetic biology, controversial efforts in modifying crops and saving species, as well as the numerous ethical issues raised in these areas.

We humans are a strange bunch. We have self-awareness and yet often act on impulses that remain hidden. How did we get here? What is to become of us? To these age-old questions, science has in recent years brought powerful tools and reams of data, and in this audiobook, Becoming Human, we look at what this data has to tell us about who we are.

When Walt Whitman self-published "Leaves of Grass" in 1855, he rocked the literary world and forever changed the course of poetry. In subsequent editions, Whitman continued to revise and expand his poems - but none matched the raw power and immediacy of the first edition. This volume presents the 1855 "Leaves of Grass" in its entirety, unchanged, along with Ralph Waldo Emerson's famous letter to Whitman.

Vital research is starting to challenge long-standing assumptions about gender identity and biological sex, such as work that indicates the brain is a “mosaic” of traits rather than a “male” and “female” brain. Growing knowledge of the genetic complexities of sexual determination is changing the way the medical community treats intersex individuals, and in this audiobook, The New Science of Sex and Gender, we not only examine the latest studies in biology, medicine, and psychology but also, more importantly, their bearing on healthcare, identity, and access.

Charlie is good at her work. As a hard-charging drug rep with the brains and talent to make it to the top, she has the world at her feet. Then, the lights go out, and everything changes. An EMP decimates the United States, leaving the country in the dark. With modern technology suddenly and permanently turned off, society's dark side quickly takes over. Caught on the road, she teams up with two new companions and they fight their way towards safety and freedom. Criminals, gangs, and worse stand between them and the safety of a friend's farm.

Is time an illusion? Is time travel possible? Could time end? In this audiobook, A Question of Time, we take an interdisciplinary look at the fourth dimension, exploring the latest thinking on the nature of time and the ways it dominates our physical and mental worlds. 

This audiobook, Tomorrow's Medicine, looks at some of the more fascinating areas where technology that could transform health is being developed, including cybernetics, regenerative medicine, nanotechnology, and genetically tailored treatments. Although many of these advances may not be ready to treat humans for many years, some of them may someday profoundly change - and extend - our lives. As exciting as the possibilities are to extend both the length and quality of life, immortality - or at least agelessness - may be forever out of our reach.

This is a new edition of Mark Twain's masterpiece, Huckleberry Finn, published by American Renaissance Books. The audiobook is narrated by Theo Holland, who brings to life the humor and drama of this timeless tale.

The sense of position and movement is often called the sixth sense; the brain’s connection to the immune system might be a seventh. In this audiobook, we examine the diverse functions of the brain beyond the five senses, including the glymphatic system for maintaining brain health, the processes behind intuition, and new research raising questions about “brain death.”

Anxiety and depression are two of the most common conditions affecting mental health and overall quality of life, but there are tools for managing them. In this audiobook, we’ll explore how depression shows up in the brain, different manifestations of depression and anxiety, various talk therapies, technological innovations, lifestyle interventions, and more.