Science is a systematic enterprise that builds knowledge through formulating testable hypothese and predictions about the physical universe. Its earliest roots of science can be traced to Ancient Egypt, India and Mesopotamia in around 3500 to 3000 BC. Scientific fields may be divided into: natural sciences, which examine natural phenomena including biological lifeforms, and social sciences, which analyze human behavior and societies. Both are empirical sciences. Disciplines that may be termed interdisciplinary applied sciences include engineering and medicine. Mathematics, which is formally classified as a science, exhibits similarities and differences to empirical sciences.
Leopold Classic Library has the goal of making available to readers the classic books that have been out of print for decades. While these books may have occasional imperfections, we consider that only hand checking of every page ensures readable content without poor picture quality, blurred or missing text etc. That's why we:
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