Pregnant women are told to avoid cold cuts, sushi, alcohol, and coffee without ever being told why these are forbidden. Rules for prenatal testing are similarly unexplained. Moms-to-be desperately want a resource that empowers them to make their own right choices.When award-winning economist Emily Oster was a mom-to-be herself, she evaluated the data behind the accepted rules of pregnancy and discovered that most are often misguided and some are just flat-out wrong. Debunking myths and explaining everything from the real effects of caffeine to the surprising dangers of gardening, Expecting Better is the book for every pregnant woman who wants to enjoy a healthy and relaxed pregnancy.

    Briefly, we learn the way a musical tradition born in Ancient Greece, embraced by the Roman Empire, and subsequently nurtured by influences from across the globe, gave shape to the classical music that came to be embraced by cultures from Japan to Bolivia. Then Mauceri examines the music itself, helping us understand what it is we hear when we listen to classical music: how, by a kind of sonic metaphor, it expresses the deepest recesses of human feeling and emotion; how each piece bears the traces of its history; how the concert experience--a unique one each and every time--allows us to discover music anew. Unpretentious, graceful, instructive, this is a book for the aficionado, the novice, and anyone looking to have the love of music fired within them.

    As audacious as it is edifying, here is a hilarious and irreverent—yet always historically accurate—overview of the ascent (or descent) of humankind, courtesy of the same rebel geniuses who brought you Mental Floss presents Condensed Knowledge and Mental Floss Presents Forbidden Knowledge. Updated with all the hot topics and events of the past few years, The Mental Floss History of the World is proof positive that just because something’s true doesn’t mean it’s boring.

    Objects in harmonic motion have the ability to transfer some of their energy over large distances. Light Nature: This chapter covers the nature of light, polarization, and color.

    Darrell Huff runs the gamut of every popularly used type of statistic, probes such things as the sample study, the tabulation method, the interview technique, or the way the results are derived from the figures, and points up the countless number of dodges which are used to fool rather than to inform.

    The term “complexity” can be misleading, however, because what makes West’s discoveries so beautiful is that he has found an underlying simplicity that unites the seemingly complex and diverse phenomena of living systems, including our bodies, our cities and our businesses. Fascinated by issues of aging and mortality, West applied the rigor of a physicist to the biological question of why we live as long as we do and no longer. The result was astonishing, and changed science, creating a new understanding of energy use and metabolism: West found that despite the riotous diversity in the sizes of mammals, they are all, to a large degree, scaled versions of each other. If you know the size of a mammal, you can use scaling laws to learn everything from how much food it eats per day, what its heart-rate is, how long it will take to mature, its lifespan, and so on. Furthermore, the efficiency of the mammal’s circulatory systems scales up precisely based on weight: if you compare a mouse, a human and an elephant on a logarithmic graph, you find with every doubling of average weight, a species gets 25% more efficient—and lives 25% longer. This speaks to everything from how long we can expect to live to how many hours of sleep we need. Fundamentally, he has proven, the issue has to do with the fractal geometry of the networks that supply energy and remove waste from the organism's body. West's work has been game-changing for biologists, but then he made the even bolder move of exploring his work's applicability to cities. Cities, too, are constellations of networks and laws of scalability relate with eerie precision to them. For every doubling in a city's size, the city needs 15% less road, electrical wire, and gas stations to support the same population. More amazingly, for every doubling in size, cities produce 15% more patents and more wealth, as well as 15% more crime and disease. This broad pattern lays the groundwork for a new science of cities. Recently, West has applied his revolutionary work on cities and biological life to the business world. This investigation has led to powerful insights into why some companies thrive while others fail. The implications of these discoveries are far-reaching, and are just beginning to be explored. Scale is a thrilling scientific adventure story about the elemental natural laws that bind us together in simple but profound ways. Through the brilliant mind of Geoffrey West, we can envision how cities, companies and biological life alike are dancing to the same simple, powerful tune, however diverse and unrelated they are to each other.From the Hardcover edition.

    Thoughtfully curated and expertly researched, this is a book of classical music to keep you company: whoever you are, wherever you're from.'The only requirements for enjoying classical music are open ears and an open mind.' Clemency Burton-HillPlaylists are available on most streaming music platforms including Apple Music.