the Book draft and the six transparent hemispheres


A book is a series of pages assembled for easy portability and reading, as well as the composition contained in it. The book's most common modern form is that of a codex volume consisting of rectangular paper pages bound on one side, with a heavier cover and spine, so that it can fan open for reading. Books have taken other forms, such as scrolls, leaves on a string, or strips tied together; and the pages have been of parchment, vellum, papyrus, bamboo slips, palm leaves, silk, wood, and other materials.
The contents of books are also called books, as are other compositions of that length. For instance, Aristotle's Physics, the constituent sections of the Bible, and even the Egyptian Book of the Dead are called books independently of their physical form. Conversely, some long literary compositions are divided into books of varying sizes, which typically do not correspond to physically bound units. This tradition derives from ancient scroll formats, where long works needed several scrolls. Where very long books in codex format still need to be physically divided, the term volume is now normally used. Books may be distributed in electronic form as e-books and other formats. A UNESCO conference in 1964 attempted to define a book for library purposes as "a non-periodical printed publication of at least forty-nine pages, exclusive of cover pages". A single sheet within a codex book is a leaf, and each side of a leaf is a page. Writing or images can be printed or drawn on a book's pages.
In library and information science, a monograph is a book of one or more volumes which is not a serial such as a magazine, journal, or newspaper. An avid reader or collector of books or a book lover is a bibliophile or colloquially, "bookworm". A shop where books are bought and sold is a bookshop or bookstore. Books are also sold elsewhere. Books can also be borrowed from libraries. Google has estimated that as of 2010, approximately 130,000,000 distinct titles had been published. In some wealthier nations, the sale of printed books has decreased because of the use of e-books, though sales of e-books declined in the first half of 2015.


Drafting is the preliminary stage of a written work in which the author begins to develop a more cohesive product. A draft document is the product the writer creates in the initial stages of the writing process.
In the drafting stage, the author:
• develops a more cohesive text
• organizes thoughts
• explains examples/ideas
• uncovers transitions
• discovers a central argument/point
• elaborates on key ideas
In a book that became popular in the 1950s, The Elements of Style, famed authors Strunk and White describe the first draft as being a less edited version of the final draft. In their book, Strunk and White say, “the first principle of composition is to foresee or determine the shape of what is to come and pursue that shape. This shape is the draft that eventually becomes the finished work.
More recently, Peter Elbow, in his book Writing Without Teachers, presents a very different view of the drafting stage in the writing process. He describes his stance on the writing process, saying “Writing is a way to end up thinking something you couldn’t have started out thinking. ” According to Elbow, the best way to accomplish this is a series of drafts which come together to produce an emerging “center of gravity” that then translates into the main focus on the work. This process should be a holistic process, not a linear process. Elbow’s reasoning behind this concept of multiple drafts follows the idea that, “if he learns to maximize the interaction among his own ideas or points of view, he can produce new ones that didn’t seem available to him.”
Whether being used as the creation of a less-edited final product (Strunk and White) or as a tool during the prewriting stage (Elbow), drafting is a necessary stage for the writer in the writing process. Having created a draft, the author is then able to move onto the revision.


6 (six) is the natural number following 5 and preceding 7.
The SI prefix for 10006 is exa- (E), and for its reciprocal atto- (a).


In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without being scattered. On a macroscopic scale (one where the dimensions investigated are much, much larger than the wavelength of the photons in question), the photons can be said to follow Snell's Law. Translucency (also called translucence or translucidity) is a superset of transparency: it allows light to pass through, but does not necessarily (again, on the macroscopic scale) follow Snell's law; the photons can be scattered at either of the two interfaces where there is a change in index of refraction, or internally. In other words, a translucent medium allows the transport of light while a transparent medium not only allows the transport of light but allows for image formation. The opposite property of translucency is opacity. Transparent materials appear clear, with the overall appearance of one color, or any combination leading up to a brilliant spectrum of every color.
When light encounters a material, it can interact with it in several different ways. These interactions depend on the wavelength of the light and the nature of the material. Photons interact with an object by some combination of reflection, absorption and transmission. Some materials, such as plate glass and clean water, transmit much of the light that falls on them and reflect little of it; such materials are called optically transparent. Many liquids and aqueous solutions are highly transparent. Absence of structural defects (voids, cracks, etc.) and molecular structure of most liquids are mostly responsible for excellent optical transmission.
Materials which do not transmit light are called opaque. Many such substances have a chemical composition which includes what are referred to as absorption centers. Many substances are selective in their absorption of white light frequencies. They absorb certain portions of the visible spectrum while reflecting others. The frequencies of the spectrum which are not absorbed are either reflected or transmitted for our physical observation. This is what gives rise to color. The attenuation of light of all frequencies and wavelengths is due to the combined mechanisms of absorption and scattering.
Transparency can provide almost perfect camouflage for animals able to achieve it. This is easier in dimly-lit or turbid seawater than in good illumination. Many marine animals such as jellyfish are highly transparent.


Hemispheres is a half of a sphere.