Atlas Archives - Page 2 of 5 - Projeda

A Conclusion and a Beginning

[1.9 A Conclusion and a Beginning] If you are new to astronomy, you have probably reached the end of our brief tour in this chapter with mixed emotions. On the one hand, you may be fascinated by some of the […]

The Universe of the Very Small

[1.8 The Universe of the Very Small] The foregoing discussion has likely impressed on you that the universe is extraordinarily large and extraordinarily empty. On average, it is 10,000 times more empty than our Galaxy. Yet, as we have seen, […]

The Universe on the Large Scale

[1.7 The Universe on the Large Scale] In a very rough sense, you could think of the solar system as your house or apartment and the Galaxy as your town, made up of many houses and buildings. In the twentieth […]

A Tour of the Universe

[1.6 A Tour of the Universe] We can now take a brief introductory tour of the universe as astronomers understand it today to get acquainted with the types of objects and distances you will encounter throughout the text. We begin […]

Astronomy [Book]

The Astronomy [Book] is a complete guide to astronomy at a university level.

Scalars and Vectors

In this chapter, Scalars and Vectors, you will learn the difference between scalar and vector quantities in physics. In addition, you will learn how to identify the magnitude and direction of a vector. Contents Scalars and Vectors Many familiar physical […]

Vectors

Vectors (or Vector Quantities) are the combination of two scalars. (Two units, each only with a magnitude only.) Direction and Distance are two common scalars, that combine to form Direction, a vector. In order to describe any type of motion […]

The DOM

Since we have already touched on the formal theory of the DOM — Document Object Model — let’s dive into the Structural Anatomy and Lifecycle of the DOM Tree as it functions in a live browser environment. In our study […]

Identity Property

In a university-level study of the Field Axioms, the Identity Property defines the “existence of neutral elements.” These are the specific values within a set that, when applied to another number through an operation, leave that number unchanged. Every Field […]

Inverse Property

The Inverse Property is the axiom that ensures we can “undo” any operation. Within a Field, every element must have a corresponding “opposite” that, when combined with it, results in the Identity Element (0 for addition, 1 for multiplication). The […]