
Physics Help
The book is an overview of the major subfields and concepts in physics, including a brief outline of the history of physics and its subfields. Physics (from Greek from φυσικός (phusikos): natural, from φύσις (fysis): Nature) is the science of … Read More

Classical theory of singularities
The singularities from the general relativity resulting by solving Einstein’s equations were and still are the subject of many scientific debates: Are there singularities in spacetime, or not? Big Bang was an initial singularity? If singularities exist, what is their … Read More

Hooke’s claim on the law of gravity
Based on Galileo’s experiments, Newton develops the theory of gravity in his first book Philosophiæ Naturalis Principia Mathematica (“Principia“) of 1686. Immediately after, Robert Hooke accused Newton of plagiarism, claiming that he unduly assumed his “notion” of “the rule of … Read More

About Cats
A guide for the cat lovers about the cat behavior, cat attractants, cat breeds, cat health and food, type of cats, cats as pets, fictional cats, films about cats, historical cats. A book full with pictures of the most important … Read More

What Is e-Book? A Guide for Free eBook Publishing
The e-book guide for publishers: how to publish, EPUB format, ebook readers and suppliers. An electronic book (also e-book, ebook, electronic book, digital book) is a book-length publication in digital form, consisting of text, images, or both, and produced on, … Read More

The Car Show
The e-book details the most interesting and important characteristics of the automobiles, car maintenance, styling features, car body style, the standard classification of the cars, an history of the automobiles, introduction in the automotive industry, and the traffic code, rules … Read More

Dance Music
Dance music is music composed, played, or both, specifically to accompany dancing. It can be either the whole musical piece or part of a larger musical arrangement. Dance music works usually bear the name of the corresponding dance, e.g. waltzes, … Read More

The Bridge Game
A comprehensive guide of bridge game: online games, variants, suits, hand evaluation, bidding systems, techniques, strategy, tactics. Contract bridge, usually known simply as bridge, is a trick-taking card game of skill for four players, usually sitting around a table, who … Read More

Country Music
In popular music, country music, also called country and western music or country-western, is an amalgam of popular musical forms developed in the Southern United States, with roots in traditional folk music, Celtic Music, Blues, Gospel music, and Old-time music … Read More

Lakatos on justificationism
According to the scientific “justificationist” method, knowledge consisted of proven sentences. Classical intellectuals (or “rationalists,” in the narrow sense of the term) have accepted extremely varied – and powerful “proofs“, through revelation, intellectual intuition, experience. These, with the help of … Read More

Newton’s action at a distance – Different views
Different authors have attempted to clarify the aspects of remote action and God’s involvement on the basis of textual investigations, mainly from the Mathematical Principles of Natural Philosophy, Newton’s correspondence with Richard Bentley (1692/93), and Queries that Newton introduced at … Read More

American Music
The music of the United States is so cool! It reflects the country’s multicultural population through a diverse array of styles. Rock and roll, hip hop, country, rhythm and blues, and jazz are among the country’s most internationally renowned genres. … Read More

The singularities as ontological limits of the general relativity
The singularities from the general relativity resulting by solving Einstein’s equations were and still are the subject of many scientific debates: Are there singularities in spacetime, or not? Big Bang was an initial singularity? If singularities exist, what is their … Read More

The Music Sound
A guide for music: compositions, events, forms, genres, groups, history, industry, instruments, language, live music, musicians, songs, musicology, techniques, terminology , theory, music video. Music is a human activity which involves structured and audible sounds, which is used for artistic … Read More

The Birds World
Birds are among the most extensively studied of all animal groups. Hundreds of academic journals and thousands of scientists are devoted to bird research, while amateur enthusiasts (called birdwatchers or, more commonly, birders) probably number in the millions. Birds are … Read More

Animation & Cartoons
An animated cartoon is a short, hand-drawn (or made with computers to look similar to something hand-drawn) moving picture for the cinema, TV or computer screen, featuring some kind of story or plot. Animation is the optical illusion of motion … Read More