Название: Radiative Transfer: An Introduction to Exact and Asymptotic Methods
Автор: Helene Frisch
Издательство: Springer
Год: 2022
Страниц: 611
Размер: 10.59 МБ
Формат: PDF
Язык: English

This book discusses analytic and asymptotic methods relevant to radiative transfer in dilute media, such as stellar and planetary atmospheres. Several methods, providing exact expressions for the radiation field in a semi-infinite atmosphere, are described in detail and applied to unpolarized and polarized continuous spectra and spectral lines. Among these methods, the Wiener–Hopf method, introduced in 1931 for a stellar atmospheric problem, is used today in fields such as solid mechanics, diffraction theory, or mathematical finance.

Название: RSPB Spotlight Hedgehogs
Автор: James Lowen
Издательство: Bloomsbury
Год: 2018
Формат: EPUB
Размер: 115 Мб
Язык: английский / English

Much loved ... but about to be lost? The Hedgehog regularly tops polls of the UK's favourite animal, yet numbers in our countryside have halved this century. Generations of children have been captivated by Beatrix Potter's The Tale of Mrs Tiggy-Winkle, though our complex and contradictory relationship with the Hedgehog is also characterised by persecution and death. This unmistakable, spiny mammal is a 'gardener's best friend', but one that we rarely see alive and in our midst. In Spotlight: Hedgehogs, James Lowen reveals what a Hedgehog is and how it lives, unveiling the secrets of its lifestyle, such as foraging and hibernating, rolling into a ball and building a nest. He also investigates the relationship between Hedgehogs and people – from film and fun to conservation and crisps – and offers practical advice on how to find, watch and help these charming animals in the wild.

Название: RSPB Spotlight Frogs and Toads
Автор: Jules Howard
Издательство: Bloomsbury
Год: 2019
Формат: EPUB
Размер: 100 Мб
Язык: английский / English

They were bestowed with magical properties in folklore, they were sought after as ingredients of witches' broth, and they are comic characters that have invaded popular culture, from Kermit the Frog to Toad of Toad Hall. Frogs and toads are charismatic members of Britain's wildlife. But what do you really know about them? Scratch beneath the surface, and you will discover some of nature's weirdest creatures, amphibians whose ecology we are only now coming to understand. Spotlight Frogs and Toads is a compelling account of Britain's four native amphibian species: the Common Frog, the Pool Frog, the Common Toad and the rare and secretive Natterjack Toad. New research suggests that, in the next ten years, three out of four UK species are likely to be listed as threatened. Revealing a host of secrets, including how they migrate, what they eat, and how they got to the UK in the first place, Jules Howard inspires us all to look down, rather than up, in spring.

Название: Пустыни
Автор: Бабаев А.Г.
Издательство: Мысль
Серия: Природа мира
Год: 1986
Формат: djvu
Страниц: 383
Размер: 46,24 Мб
Язык: Русский

В книге приводятся общие сведения о пустынях земного шара: закономерности их образования и географического распространения, особенности природы, классификация. Дается также физико-географическая характеристика различных пустынь мира по континентам и отдельным регионам. Большое внимание уделено хозяйственному освоению пустынь и проблеме "пустыня и человек" - современному антропогенному воздействию на пустыни, процессам опустынивания и охране их природы

Название: Беларуская дыялекталогія 2014
Автор: рэд. Л. П. Кунцэвіч, В. М. Курцова
Издательство: Мінск. «Беларуская навука»
Год: 2014
Формат:PDF
Страниц:304
Размер: 18.14MB
Язык: белорусский

Беларуская дыялекталогія

Название: Борьба богатырей - воды и огня
Автор: Дружбин П. В.
Издательство: Москва. изданiе т-ва И.Д. Сытина
Год: 1908
Формат:PDF
Страниц:224
Размер:79.96MB
Язык: русский

Приключения и катастрофы на суше и на море (рассказы из истории земли)

Название: The Princeton Field Guide to Dinosaurs: Second Edition
Автор: Gregory S. Paul
Издательство: Princeton University Press
Год: 2016
Формат: PDF
Страниц: 361
Размер: 28,4 Mb
Язык: English

A fully updated and expanded new edition of the acclaimed, bestselling dinosaur field guide
The bestselling Princeton Field Guide to Dinosaurs remains the must-have book for anyone who loves dinosaurs, from amateur enthusiasts to professional paleontologists. Now extensively revised and expanded, this dazzlingly illustrated large-format edition features some 100 new dinosaur species and 200 new and updated illustrations, bringing readers up to the minute on the latest discoveries and research that are radically transforming what we know about dinosaurs and their world.

Название: Foundations of General Relativity: From Einstein to Black Holes
Автор: Klaas Landsman
Издательство: Radboud University Press
Год: 2021
Страниц: 394
Размер: 23.37 МБ
Формат: PDF
Язык: English

This book, dedicated to Roger Penrose, is a second, mathematically oriented course in general relativity. It contains extensive references and occasional excursions in the history and philosophy of gravity, including a relatively lengthy historical introduction. The book is intended for all students of general relativity of any age and orientation who have a background including at least first courses in special and general relativity, differential geometry, and topology.

Название: Evolution of Extreme: Waves and Resonances
Автор: Shamil U. Galiev
Издательство: CRC Press
Год: 2020
Страниц: 531
Размер: 27,48 МБ
Формат: PDF
Язык: English

The theory of waves is generalized on cases of strongly nonlinear waves, multivalued waves, and particle–waves. The appearance of these waves in various continuous media and physical fields is explained by resonances and nonlinearity effects. Extreme waves emerging in different artificial and natural systems from atom scale to the Universe are explored. Vast amounts of experimental data and comparisons of them with the results of the developed theory are presented.

Название: Природа шаровой молнии
Автор: Сингер С.
Издательство: Мир
Год: 1973
Cтраниц: 240
Формат: pdf
Размер: 13 мб
Язык: русский

Книга дает довольно полный обзор существующих наблюдений и теорий одного из удивительных явлений природы — шаровой молнии, до сих пор не получившего общепринятого объяснения. Автор знакомит читателя со свидетельствами многочисленных очевидцев, обсуждает вопрос о реальности явления шаровой молнии, суммирует ее характерные особенности, вытекающие из наблюдений, кратко и популярно разбирает все имеющиеся теории шаровой молнии. Книга снабжена обширной библиографией, представляющей самостоятельную ценность