Collects hundreds of top ten lists highlighting America's national parks.

Collects hundreds of top ten lists highlighting America's national parks.

Fully updated and revised--with 100 brand-new excursions--this idea-filled guidebook highlights top-tier adventures across the U.S. National Park System. National parks are more than the best idea America ever had―they're our country's best playgrounds for millions of vacationers who want to enjoy recreational activities, nature and wildlife, and downtime in the great outdoors. This timely, idea-filled guide has been fully updated and revised, with brand-new top 10 lists, as well as new parks and destinations across more than 400 protected sites, including our national seashores, national monuments, national battlefields, national scenic trails, and beyond. Find recommendations for the best lodges, best hikes, best star-gazing spots, best campfire meal spots, and more. Destinations are covered by region, theme, season, and occasion. Photos, anecdotes, insider tips from park rangers, plus traveler resources such as hotels and restaurants, make this the national parks guide travelers have long sought.

The ultimate travel guide offers an updated series of top-ten lists covering top sporting events, locations, hotels, restaurants, and Sunday afternoon excursions and more than thirty extraordinary trips and expeditions on every continent.

From New England to Alaska, this 544 page resource is filled with helpful advice, historical background, and practical facts on how to reach scores of park system properties, when to go, and what to do there.

"Fifty-Nine Parks collaborated with some of the world's foremost contemporary artists and designers to create original posters that celebrate the unique beauty of the U.S. National Park system. Each poster is a contemporary take on the W.P.A. posters of the 1930s, resulting in a one-of-a-kind tribute to the majesty of the national parks"--

There's simply no better getaway in the United States than a visit to one of the country's 62 national parks from Alaska to the Virgin Islands, from Maine to America Samoa. Profiled in this all-new ninth edition of National Geographic's enduring and informative guide, you'll find expert travel advice, candid tips for hiking and wildlife spotting, and detailed maps to help navigate your way through America's great outdoors. Updated throughout with the latest information from park rangers and National Geographic's own acclaimed travel writers, this fully revised and comprehensive guidebook includes the newest additions to the United States park system-Indiana Dunes, White Sands, and Gateway Arch national parks. Whether you're looking to explore the underground world of Mammoth Caves or make your way through the mangroves of Everglades National Park, you'll find a destination that suits your needs, and inspiration to plan your next wild adventure. In addition to park details and descriptions, this sparkling new edition features week-long regional road trip itineraries s so you can visit multiple parks in one vacation. Filled with more than 300 dazzling photographs and 80 full-color maps, this inspiring book reveals the best the United States has to offer-right in its own backyard.

This book presents a perspective on the history of theoretical physics over the past two hundreds years. It comprises essays on the history of pre-Maxwellian electrodynamics, of Maxwell's and Hertz's field theories, and of the present century's relativity and quantum physics. A common thread across the essays is the search for and the exploration of themes that influenced significant con ceptual changes in the great movement of ideas and experiments which heralded the emergence of theoretical physics (hereafter: TP). The fun. damental change involved the recognition of the scien tific validity of theoretical physics. In the second half of the nine teenth century, it was not easy for many physicists to understand the nature and scope of theoretical physics and of its adept, the theoreti cal physicist. A physicist like Ludwig Boltzmann, one of the eminent contributors to the new discipline, confessed in 1895 that, "even the formulation of this concept [of a theoretical physicist] is not entirely without difficulty". 1 Although science had always been divided into theory and experiment, it was only in physics that theoretical work developed into a major research and teaching specialty in its own right. 2 It is true that theoretical physics was mainly a creation of tum of-the century German physics, where it received full institutional recognition, but it is also undeniable that outstanding physicists in other European countries, namely, Ampere, Fourier, and Maxwell, also had an important part in its creation.

"This reference is the ultimate travel planner for all things national parks, scenic trails, seashores, historic areas, and more"--

"A guide to the best parks in the United States and Canada, including activity and accommodation information; information on nearby attractions; top ten lists; and information on local fare"--