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Important Concepts of Organic Chemistry

When you're studying organic chemistry, keep these helpful reminders close by because they highlight some of the most important concepts you'll need to understand organic chemistry: [more…]

Periodic Table of Elements

Studying the elements of the periodic table is vital for understanding organic chemistry. So that you don't have to memorize each element, they're grouped together by their properties. [more…]

Organic Chemistry 1 Workbook For Dummies Cheat Sheet

Get a firm grasp on organic chemistry. Successfully studying organic chemistry means getting to know the elements of the periodic table and the important facts that highlight the fundamentals of organic [more…]

ASL: How to Sign about the Sun, Moon, and Stars

Take a moment, the next time you’re outside, and look up. Do you see the sun, moon, stars? You can communicate their beauty through their American Sign Language [more…]

Study Tips for Organic Chemistry II

Organic Chemistry II doesn’t have to be as difficult as you think. Follow these study tips to improve your understanding of organic chemistry, from carbon atom bonds to unnamed reactions, and everything [more…]

Tips for Taking an Organic Chemistry II Exam

Taking an Organic Chemistry II test has a completely deserved reputation for being tough. Make life easier by following these tips before you take your next organic chemistry exam: [more…]

Organic Chemistry II: Directing Groups for Aromatic Systems

In an Organic Chemistry II class you often add groups to aromatic systems. If you’re wondering where the substitution will take place, check out this table for some guidelines. When using this table, remember [more…]

Organic Chemistry II For Dummies Cheat Sheet

Organic Chemistry II is one of the toughest courses you can take. Surviving isn’t easy — you probably know that from your Organic Chemistry I class. Preparation is key: If you study the right way, prepare [more…]

Physics Equations for Electricity and Magnetism

Electricity and magnetism make up one of the most successful fields of study in physics. When working mathematically with electricity and magnetism, you can figure out the force between electric charges [more…]

Light Wave and Optics Formulas

Light waves — that is, electromagnetic waves — behave like other waves: They can reflect, refract (bend), and interfere with each other. Here are some wave formulas that are useful when you’re working [more…]

Formulas from Einstein’s Theory of Special Relativity

Einstein’s theory of special relativity describes what happens as things near the speed of light. Here are some important special-relativity equations that deal with time dilation, length contraction, [more…]

Quantum Mechanics and Other Modern Physics Topics

Modern physics includes all sorts of topics, such as quantum mechanics, matter waves, radioactivity, the spectrum of hydrogen, and more. [more…]

Physics II For Dummies Cheat Sheet

Here’s a list of some of the most important equations in Physics II courses. You can use these physics formulas as a quick reference for when you’re solving problems in electricity and magnetism, light [more…]

What Is Linguistic Anthropology?

Language is the system humans use to communicate. Linguistic anthropology studies human language, and these points highlight humanity's distinct way of transmitting information: [more…]

How Anthropologists Group the Early Hominids

By studying early hominids (large, bipedal primates) that date back to millions of years, anthropologists can track the development of the human race. When exploring anthropology, 'keep these important [more…]

Anthropology and Human Modernity

Modern humans have physical and behavioral differences from ancient humans. When you're studying anthropology — specifically, modernity in humans — keep these points in mind. They highlight the most important [more…]

Culture and Cultural Universals in Anthropology

Anthropologists don't just study the evolution of human beings, they also learn about their cultures, how cultures develop, and how cultures shape human behavior. If you need to refresh your memory about [more…]

Anthropology of Subsistence and Social Organization

Humanity has practiced all kinds of ways of subsistence, or getting food. This table shows different modes of subsistence and the affects they've had on social organization. [more…]

Anthropology For Dummies Cheat Sheet

The study of humanity, or anthropology, starts with the origin and evolution of man. Other elements key to the study of anthropology are human modernity [more…]

What’s the Difference between a Strain, a Sprain, and a Fracture?

You jumped high and came down hard, but you got the interception. Unfortunately, you also got a very sore and swollen ankle. Now you’re left wondering if you’ve got a strain, a sprain, or fracture. [more…]

Metric System Unit Prefixes

For building circuits or other electronics, a system of prefixes is used to make managing and reading metric easier. Use this chart to learn the metric prefix, its symbol, and the decimal value. [more…]

Statics: How to Calculate a Force's Moment

In statics, moments are effects (of a force) that cause rotation. When computing equilibrium, you must be able to calculate a moment for every force on your free-body diagram. To determine a force's moment [more…]

Checklist for Solving Statics Problems

Solving statics problems can be complicated; each problem requires a list of items to account for and equations to create and solve. Solve statics problems with ease by using this checklist: [more…]

Statics: Computing Submerged Surface Pressures

When working submerged surface problems in statics, remember that all submerged surfaces have a fluid acting upon them, causing pressure. You must compute two pressures: the hydrostatic pressure resultant [more…]

Calculating a Region or Load's Center of Area: Centroids

The centroid or center of area of a geometric region is the geometric center of an object's shape. Centroid calculations are very common in statics, whether you're calculating the location of a distributed [more…]

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