Thiên văn học dự đoán vị trí tương lai và chuyển động của các thiên thể, tìm hiểu và giải thích các hiện tượng vật lý trong không gian. Hàng hải thiên văn quan tâm đến hệ toạ độ thiên cầu, thời gian và chuyển động biểu kiến của các thiên thể áp dụng vào việc định vị trên trái đất

 82 p dnulib 06/12/2013 350 2 Download

Tham khảo bài viết 'địa lí nông nghiệp việt nam', tài liệu phổ thông, ôn thi đh-cđ phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

 9 p dnulib 06/12/2013 472 1 Download

Định nghĩa và các khái niệm: Là loại khí không có sự tương tác giữa các phân tử, xem như thể tích bằng 0, luôn nghiệm đúng các định luật thực nghiệm...

 26 p dnulib 05/01/2013 1705 1 Download

ĐLKT là một môn Khoa Học Xã Hội, KHKT có đối tượng nghiên cứu: a. Các hệ thống dân cư-kinh tế-xã hội b. Các lãnh thổ, các ngành sản xuất, dân cư-xã hội c. Mối quan hệ giữa điều kiện tự nhiên-kinh tế-xã hội trên lãnh thổ d. Các hệ thống tự nhiên dân cư-kinh tế-xã hội trên lãnh thổ Câu 2. Khoa học địa lý kinh tế có mối quan hệ với: a....

 49 p dnulib 09/12/2012 345 1 Download

This book has been published in order to deepen efforts towards the understanding of tsunami dynamics that seems to be never enough. This multi-disciplinary volume compiles a collection of scientific papers showing the state-of-the-art of tsunami research at different levels. The various contributions cover an array of themes that span from geological evidence to post-trauma human care, encompassing pre-tsunami analyses and modeling to...

 267 p dnulib 06/12/2012 422 2 Download

Surveying both historical debates and modern physics, Barry Dainton evaluates the central arguments in a clear and unintimidating way that keeps conceptual issues comprehensible to students with little scientific or mathematical training and makes the philosophy of space and time accessible to anyone trying to come to grips with the complexities of this challenging subject. With over 100 original line illustrations and a full glossary of...

 481 p dnulib 06/12/2012 487 2 Download

The diverse forms that stars assume in the course of their lives can all be derived from the initial conditions : the mass and the original chemical composition. In this textbook Stars and Stellar Evolution the basic concepts of stellar structure and the main roads of stellar evolution are described. First, the observable parameters are presented, which are based on the radiation emerging from a stellar atmosphere.

 333 p dnulib 06/12/2012 347 2 Download

The book is organized in a unique section collecting nine chapters focusing on a variety of aspects of the erosion phenomena. Soil loss for erosion is a natural phenomenon in soil dynamics, influenced by climate, soil intrinsic properties, and morphology, that can both trigger and enhance the process. Anthropic activities, like inappropriate agricultural practices, deforestation, overgrazing, forest fires and construction activities, may...

 200 p dnulib 06/12/2012 468 2 Download

This book provides a comprehensive survey of the development of the theory of scale relativity and fractal space-time. It suggests an original solution to the disunified nature of the classical-quantum transition in physical systems, enabling the basis of quantum mechanics on the principle of relativity, provided this principle is extended to scale transformations of the reference system. In the framework of such a newly generalized relativity...

 752 p dnulib 06/12/2012 415 2 Download

Might “global warming” be the source of the energy to fuel the next cloudy and snowy glacial period—an eventual severe global cooling? Ecologist and engineer John D. Hamaker was convinced of it, having studied the current state of the Biosphere and the 25 glacial-interglacial cycles of the last 2.5 million years.

 234 p dnulib 12/11/2012 483 13 Download

It was a catastrophe without precedent in recorded history: for months on end, starting in A.D. 535, a strange, dusky haze robbed much of the earth of normal sunlight. Crops failed in Asia and the Middle East as global weather patterns radically altered.

 1056 p dnulib 10/11/2012 393 2 Download

Freeman’s briefest, least expensive introductory astronomy text. Discovering the Essential Universe, Fourth Edition (DEU 4e) is designed to help students overcome common misconceptions about astronomy. It provides up-to-date explanations of core concepts in a flexible and student-friendly text, supported by an impressive collection of multimedia resources developed by astronomy education researchers.

 523 p dnulib 08/11/2012 456 3 Download