Conversations on chemistry: in which the elements of that science are familiarly explained ; and illustrated by experiments ; and thirty-eight engravings on wood

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Publisher
Belknap and Hamersley
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Published on
Dec 31, 1841
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Pages
356
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Best For
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Language
English
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Genres
Chemistry
Science / Chemistry / General
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This content is DRM free.
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The Elements has become an international sensation, with over one million copies in-print worldwide.
The highly-anticipated paperback edition of The Elements is finally available.
An eye-opening, original collection of gorgeous, never-before-seen photographic representations of the 118 elements in the periodic table.
The elements are what we, and everything around us, are made of. But how many elements has anyone actually seen in pure, uncombined form? The Elements provides this rare opportunity. Based on seven years of research and photography, the pictures in this book make up the most complete, and visually arresting, representation available to the naked eye of every atom in the universe. Organized in order of appearance on the periodic table, each element is represented by a spread that includes a stunning, full-page, full-color photograph that most closely represents it in its purest form. For example, at -183°C, oxygen turns from a colorless gas to a beautiful pale blue liquid.
Also included are fascinating facts, figures, and stories of the elements as well as data on the properties of each, including atomic weight, density, melting and boiling point, valence, electronegativity, and the year and location in which it was discovered. Several additional photographs show each element in slightly altered forms or as used in various practical ways. The element's position on the periodic table is pinpointed on a mini rendering of the table and an illustrated scale of the element's boiling and/or melting points appears on each page along with a density scale that runs along the bottom.
Packed with interesting information, this combination of solid science and stunning artistic photographs is the perfect gift book for every sentient creature in the universe.
Includes a tear-out poster of Theodore Gray's iconic Photographic Periodic Table!
A living tradition of nature spirituality rooted in Celtic antiquity and revived to meet the challenges of contemporary life, Druidry offers people a path of harmony through reconnection with the green Earth. The Druidry Handbook is the first hands-on manual of traditional British Druid practice that explores the Sun Path of seasonal celebration, the Moon Path of meditation, and the Earth Path of living in harmony with nature as tools for crafting an earth-honoring life here and now. From ritual and meditation to nature awareness and ecological action, John Michael Greer opens the door to a spirituality rooted in the living Earth.

Featuring a mix of philosophy, rituals, spiritual practice, and lifestyle issues, The Druidry Handbook is one-stop shopping for those seriously interested in practicing a traditional form of Druidry. It offers equal value to eclectics and solitary practitioners eager to incorporate more earth-spirituality into their own belief system; it also appeals to the merely curious.

John Michael Greer has been a student of the occult traditions and nature spirituality for more than 25 years. He began following the Druid path in 1993 with initiation in the Order of Bards, Ovates, and Druids (OBOD). In 2003, he received OBOD's Mount Haemus Award for Druid scholarship and later the same year was elected Grand Archdruid of the Ancient Order of Druids in America (AODA). Greer is the author of numerous articles and ten books, including Paths of Wisdom, Circles of Power, Inside a Magical Lodge, Natural Magic, Monsters, and The New Encyclopedia of the Occult. He recently coauthored Learning Ritual Magic.

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"An excellent text, highly recommended." — Choice
When it was first published, this first-year chemistry text revolutionized the teaching of chemistry by presenting it in terms of unifying principles instead of as a body of unrelated facts. Those principles included modern theories of atomic and molecular structure, quantum mechanics, statistical mechanics and thermodynamics. In addition, Dr. Pauling attempted to correlate the theories with descriptive chemistry, the observed properties of substances, to introduce the student to the multitude of chemical substances and their properties.
In this extensively revised and updated third edition, the Nobel Prize–winning author maintains an excellent balance between theoretical and descriptive material, although the amount of descriptive chemistry has been decreased somewhat, and the presentation of the subject, especially in relation to the nonmetals, has been revised in such a way as to permit greater correlation with the electronic structure of atoms, especially electronegativity.
The principles of quantum mechanics are discussed on the basis of the de Broglie wavelength of the electron. The quantized energy levels of a particle in a box are derived by means of a simple assumption about the relation of the de Broglie waves to the walls of the box. No attempt is made to solve the Schrodinger wave equation for other systems, but the wave functions of hydrogen-like electrons are presented and discussed in some detail, and the quantum states for other systems are also covered. Statistical mechanics is introduced before thermodynamics, and the discussion of thermodynamics is based on it. This arrangement reflects the author's belief that beginning students can understand statistical mechanics better than chemical thermodynamics.
Aimed at first-year college students who plan to major in chemistry or closely related fields, the book is written in a logical, clear and understandable style. In addition, many excellent figures are included, along with numerous problems and 75 pages of appendixes covering such topics as symmetry of molecules and crystals, hybrid bond orbitals, and magnetic properties of substances.
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