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Author: J. Smeaton Chase
Publisher: Chase Press
ISBN: 1406756687
Category : History
Languages : en
Pages : 468
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Book Description
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 Excerpt: ...earth. r' = radius of moon, or other body. P = moon's horizontal parallax = earth's angular semidiameter as seen from the moon. f = moon's angular semidiameter. Now = P (in circular measure), r'-r = r (in circular measure);.'. r: r':: P: P', or (radius of earth): (radios of moon):: (moon's parallax): (moon's semidiameter). Examples. 1. Taking the moon's horizontal parallax as 57', and its angular diameter as 32', find its radius in miles, assuming the earth's radius to be 4000 miles. Here moon's semidiameter = 16';.-. 4000::: 57': 16';.-. r = 400 16 = 1123 miles. 2. The sun's horizontal parallax being 8"8, and his angular diameter 32V find his diameter in miles. ' Am. 872,727 miles. 3. The synodic period of Venus being 584 days, find the angle gained in each minute of time on the earth round the sun as centre. Am. l"-54 per minute. 4. Find the angular velocity with which Venus crosses the sun's disc, assuming the distances of Venus and the earth from the sun are as 7 to 10, as given by Bode's Law. Since (fig. 50) S V: VA:: 7: 3. But Srhas a relative angular velocity round the sun of l"-54 per minute (see Example 3); therefore, the relative angular velocity of A V round A is greater than this in the ratio of 7: 3, which gives an approximate result of 3"-6 per minute, the true rate being about 4" per minute. Annual ParaUax. 95. We have already seen that no displacement of the observer due to a change of position on the earth's surface could apparently affect the direction of a fixed star. However, as the earth in its annual motion describes an orbit of about 92 million miles radius round the sun, the different positions in space from which an observer views the fixed stars from time to time throughout the year must be separated ...
Author: J. Smeaton Chase
Publisher: Chase Press
ISBN: 1406756687
Category : History
Languages : en
Pages : 468
Get Book Here
Book Description
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 Excerpt: ...earth. r' = radius of moon, or other body. P = moon's horizontal parallax = earth's angular semidiameter as seen from the moon. f = moon's angular semidiameter. Now = P (in circular measure), r'-r = r (in circular measure);.'. r: r':: P: P', or (radius of earth): (radios of moon):: (moon's parallax): (moon's semidiameter). Examples. 1. Taking the moon's horizontal parallax as 57', and its angular diameter as 32', find its radius in miles, assuming the earth's radius to be 4000 miles. Here moon's semidiameter = 16';.-. 4000::: 57': 16';.-. r = 400 16 = 1123 miles. 2. The sun's horizontal parallax being 8"8, and his angular diameter 32V find his diameter in miles. ' Am. 872,727 miles. 3. The synodic period of Venus being 584 days, find the angle gained in each minute of time on the earth round the sun as centre. Am. l"-54 per minute. 4. Find the angular velocity with which Venus crosses the sun's disc, assuming the distances of Venus and the earth from the sun are as 7 to 10, as given by Bode's Law. Since (fig. 50) S V: VA:: 7: 3. But Srhas a relative angular velocity round the sun of l"-54 per minute (see Example 3); therefore, the relative angular velocity of A V round A is greater than this in the ratio of 7: 3, which gives an approximate result of 3"-6 per minute, the true rate being about 4" per minute. Annual ParaUax. 95. We have already seen that no displacement of the observer due to a change of position on the earth's surface could apparently affect the direction of a fixed star. However, as the earth in its annual motion describes an orbit of about 92 million miles radius round the sun, the different positions in space from which an observer views the fixed stars from time to time throughout the year must be separated ...
Author: Florine Lawlor
Publisher: Spotted Dog Press
ISBN: 1893343227
Category : Travel
Languages : en
Pages : 152
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Book Description
Mojave Desert Trails explores some of the most interesting historic and geological sites in the Mojave Desert. Ecologically and environmentally diverse, the Mojave Desert encompasses a dramatic and enchanting landscape of ancient volcanic cinder cones, Joshua tree forests, sand dunes and rugged mountains. Weather in the Mojave changes as dramatically as its terrain: triple digits from late spring to early fall with winter temps often dropping below freezing. A wet winter, with both rain and snow, will prepare the Mojave Desert for a spectacular display of spring flowers.
Author: Peter Massey
Publisher: Adler Publishing
ISBN: 9781930193208
Category : Travel
Languages : en
Pages : 348
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Book Description
This edition of our Trails series contains detailed backcountry trail information for 51 offroad routes located near the towns of Lone Pine (east), Panamint Springs, Death Valley area, Ridgecrest, Barstow, Baker and Blythe. NEW, full COLOR addition to our Trails series! These handy 6x9? books include scenic drives plus a whole lot more! Including some of America's best mountain biking, hiking, camping and fishing areas! Ghost towns galore? Step back into the past while wandering through abandoned mining areas, old buildings, and even entire towns. INCLUDES GPS coordinates throughout each book.
Author: Tony Huegel
Publisher: Wilderness Press
ISBN: 9780899974132
Category : Travel
Languages : en
Pages : 238
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Book Description
Presents 65 desert trips from Bishop to the Mexican border, including expanded coverage of popular destinations such as Death Valley National Park, Mojave National Preserve, and Anza-Borrego Desert State Park. This book makes high-walled canyons, lonely ghost towns, and soaring peaks from Mexico to the Great Basin easily accessible to recreational drivers. Tony Huegel's glove-box-sized Byways have been leading drivers to the hidden surprises found along unpaved backroads for more than 10 years. These books are for recreational drivers who want to use their four-wheel-drive or sport-utility vehicle beyond the pavement to explore, but who might not want to do hard-core or lengthy off-road driving. They are also for adventurers who use these trips as jumping-off points for muscle-powered exploration, such as hiking and mountain biking.
Author: Mary Frances Strong
Publisher:
ISBN: 9780910652155
Category : Colorado Desert (Calif. and Mexico)
Languages : en
Pages : 0
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Book Description
Field guide to the gems and minerals of the Mohave and Colorado Deserts. Includes maps and photos.
Author: Wilderness Press
Publisher: Wilderness Press
ISBN: 0899975143
Category : Travel
Languages : en
Pages : 504
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Book Description
Backpacking California is a collection of more than 70 of the most intriguing backpacking adventures in Wilderness Press's home territory of California. With contributions from more than a dozen Wilderness Press authors, the book describes routes ranging from one night to one week. Backpacking novices as well as "old hand" California hikers will find expert-crafted trips in the Coast Ranges, the Sierra, the Cascades, and the Warner Mountains. Expanded coverage includes trips in Big Sur, Anza-Borrego, Death Valley, and the White Mountains. Several trips have been described in print nowhere else. Each trip includes a trail map and essential logistical information for trip planning.
Author: Charles Kelly
Publisher:
ISBN: 9780914740377
Category : History
Languages : en
Pages : 0
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Book Description
First published in 1930, Salt Desert Trails tells the story of the Great Salt Desert crossings by early explorers and emigrant parties. Central to the story is the opening of the Hastings Cutoff in 1846, which led to the tragedy of the Donner Party and the pioneering of the emigrant trails through Utah’s Wasatch Mountains.
Author: Joseph Smeaton Chase
Publisher:
ISBN:
Category : History
Languages : en
Pages : 482
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Book Description
Author: John W. Robinson
Publisher: Wilderness Press
ISBN: 0899978088
Category : Travel
Languages : en
Pages : 290
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Book Description
Discover the best of San Bernardino National Forest with this authoritative guide to 100 unforgettable hikes. Southern California’s highest and most rugged mountains are in the San Bernardino and San Jacinto ranges, in a unique region where wildly varied naturescapes—desert cactus and pine trees, snowcapped peaks and palm oases—are found in close proximity. With the Pacific Crest Trail weaving its way through the mountains and desert, there are endless opportunities to explore Southern California trails. After more than 50 years in print, San Bernardino Mountain Trails remains the bible for Southern California hikers. This updated guide by veteran hiker and author David Money Harris contains new trips, as well as old favorites. This edition brings John Robinson’s classic guide up to date with the latest trail conditions. Eight old trails, especially in areas that have become overgrown after fire damage, have been replaced with recently built or more heavily used trails. Inside you’ll find: 100 hikes that traverse San Bernardino National Forest, the Santa Rosa Mountains, and the San Jacinto Mountains Details about each hike’s features and a description of the trail At-a-glance information about length, difficulty, and more “Overview of Hikes” chart that shows which trips are best suited for kids, dogs, mountain biking, and backpacking San Bernardino Mountain Trails is noted for its comprehensive coverage of the San Bernardino, San Jacinto, and Santa Rosa mountains and its meticulously researched history of the ranges. Get to know the area before you explore it, and find the best trips for your skill level and interests.
Author: Lynne Foster
Publisher: Random House (NY)
ISBN:
Category : Automobile travel
Languages : en
Pages : 468
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Book Description
The latest Sierra Club Adventure Travel Guide is the most comprehensive guide available to the scenic desert regions of California. Includes area maps, access and information on climate and gear. 10 black-and-white photographs. 11 line drawings. 10 maps.
