Title
The Cosmological Distance Ladder: Distance and Time in the Universe,Used
Delivery time: 8-12 business days (International)
The scale of cosmological distances has been a topic of dramatic controversy during the past decade. Experts estimating the size of the universe, as measured by the Hubble constant, have differed by as much as a factor of two. Just how big is the universe, and why have distance measurements varied to greatly? Michael RowanRobinson sheds new light on the origins of this controversy, critically reviewing the main techniques of measuring distances between astronomical bodies both within and outside our galaxy. Stars, galaxies, and cluster of galaxies all play a major part in the distance ladder, and knowledge of distance is essential for all branches of astronomy. As we examine the geometrical speculations of the Greeks and the first correct estimates of the relative distances of the planets from the Sun by Copernicus we realize that this is also a history of mankind's expanding horizon. Offering a fair, balanced review and a clear synthesis of the variety of techniques and methods for measuring cosmological distances (including the work of Gerard del Vaucouleurs, Allan Sandage, Gustav Tammann, and others), RowanRobinson integrates the various distancemeasuring methods and presents a new, revised distance scale for the known universe. He supplies a unique perspective on modern astronomy itself as he pursues and expanding scale of distance from the solar system outward. Extensively illustrated with photographs and line drawings.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
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Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.