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  2. Let's-Read-and-Find-Out Science - Wikipedia

    en.wikipedia.org/wiki/Let's-Read-and-Find-Out...

    The Let's-Read-and-Find-Out Science Books series, originally published by Crowell, now HarperCollins, is an American children's book series designed to educate preschoolers and young elementary school students about basic science concepts. Many Let's Read and Find Out titles have either been reillustrated (sometimes more than once) or reissued ...

  3. Chemistry - Wikipedia

    en.wikipedia.org/wiki/Chemistry

    Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.

  4. Open Library - Wikipedia

    en.wikipedia.org/wiki/Open_Library

    Open Library. Open Library is an online project intended to create "one web page for every book ever published". Created by Aaron Swartz, [3][4] Brewster Kahle, [5] Alexis Rossi, [6] Anand Chitipothu, [6] and Rebecca Malamud, [6] Open Library is a project of the Internet Archive, a nonprofit organization. It has been funded in part by grants ...

  5. Science - Wikipedia

    en.wikipedia.org/wiki/Science

    Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the world. [1] [2] Modern science is typically divided into two or three major branches: [3] the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; and the behavioural sciences (e.g., economics, psychology, and sociology), which ...

  6. List of academic databases and search engines - Wikipedia

    en.wikipedia.org/wiki/List_of_academic_databases...

    2.4 million digital images from archive material, 1 million of books, 40,000 high quality scans of ancient sculptures, 300 volumes of ancient books with more than 60,000 pages Free DAI & University of Cologne: AMiner [26] Computer Science: 265,034,285 Online service used to index and search academic social networks Free Tsinghua University

  7. Second law of thermodynamics - Wikipedia

    en.wikipedia.org/wiki/Second_law_of_thermodynamics

    t. e. The second law of thermodynamics is a physical law based on universal empirical observation concerning heat and energy interconversions. A simple statement of the law is that heat always flows spontaneously from hotter to colder regions of matter (or 'downhill' in terms of the temperature gradient).

  8. Outline of physical science - Wikipedia

    en.wikipedia.org/wiki/Outline_of_physical_science

    Physics – natural and physical science could involve the study of matter [4] and its motion through space and time, along with related concepts such as energy and force. [5] More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves. [a][6][7] Branches of physics.

  9. What Is Life? - Wikipedia

    en.wikipedia.org/wiki/What_Is_Life?

    What Is Life? The Physical Aspect of the Living Cell is a 1944 science book written for the lay reader by physicist Erwin Schrödinger.The book was based on a course of public lectures delivered by Schrödinger in February 1943, under the auspices of the Dublin Institute for Advanced Studies, where he was Director of Theoretical Physics, at Trinity College, Dublin.

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