With a new introduction, three new chapters, modernized language and methods throughout, and an appendix of challenging and enjoyable practice problems, Calculus Made Easy has been thoroughly updated for the modern reader.

    Now in a beautifully redesigned, two-color landmark 20th edition, this combination star atlas and reference guide has no match in the field.First published in 1910, prompted by the appearance of Halley's Comet, Norton's owes much of its legendary success to its unique maps, arranged in slices or gores, each covering approximately one-fifth of the sky. Accompanying and complimenting the charts is a succinct descriptive and tabulated accounting of astronomical knowledge and data.In this new edition the text and tables have been revised and updated to account for the new and exciting developments in astronomy. The star maps themselves were plotted using advanced computer techniques, yielding outstanding accuracy and legibility. Every celestial object visible to the naked eye is included--stars to magnitude 6, star clusters, and galaxies, as well as other celestial objects. Presented with an authority that has stood for generations, observation hints, technical explanations, and pointers to specialized information sources, make this the only essential guide to the night sky.

    Includes such topics mechanism and motion; Mayer's methodology of natural science; Richter's definite proportions; Einstein's relativity and "reality;" more. 1923 edition.

    For the next two and a half years he would document his ongoing efforts (and failures) from his laundry-room-cum-laboratory, hiring plumbers and mechanics to construct his models while spinning out a series of imagined futures that his invention-in-the-making was going to enable. The Perpetual Motion Machine: The Story of an Invention, originally published in German in 1910, is an indefinable blend of diary, diagrams and digression that falls somewhere between memoir and reverie: a document of what poet and translator Andrew Joron calls a "two-and-a-half-year-long tantrum of the imagination." Shifting ambiguously from irony to enthusiasm and back, Scheerbart's unique amalgamation of visionary humor and optimistic failure ultimately proves to be a more literary invention than scientific: a perpetual motion of a fevered imagination that reads as if Robert Walser had tried his hand at science fiction. With "toiling wheels" inextricably embedded in his head, Scheerbart's visions of rising globalization, ecological devastation, militaristic weapons of mass destruction and the possible end of literature soon lead him to dread success more than failure. The Perpetual Motion Machine is an ode to the fertility of misery and a battle cry of the imagination against praxis.

    Why I was christened Thomas Henry I do not know; but it is a curious chance that my parents should have fixed for my usual denomination upon the name of that particular Apostle with whom I have always felt most sympathy.