"Boolean operators" sounds more intense than it is. Basically, they are tools that can narrow the number of results you get from a search. For instance, if you type in the keywords "global warming," you're going to get thousands of results. So, you would want to narrow those results down. You do that by adding additional appropriate keywords and inserting terms such as "and" "or" and "not". These are the most commonly-used Boolean operators.
For example, if you were studying the impact global warming had on coastlines and associated flood insurance costs, you would add those keywords (coastlines, flood insurance) to your search, using "and," "or" or "not" accordingly.
The slide show below, along with the various other resources, will help you to understand how to use "and," "or" and "not" successfully when doing an advanced search, so that your results are more targeted to your research needs.
"It's not that I'm so smart, it's just that I stay with problems longer."
- Albert Einstein
"No power and no treasure can outweigh the extension of our knowledge."
- Democritus
Research Skill #4
How to use Boolean operators to find more accurate results. Applying tools such as Boolean operators will help you to limit your findings so that your results are more closely targeted to what you're seeking. Use them to narrow your results.
George Boole
1815-1864
Why are they called "Boolean?" Boolean operators are named after George Boole, a British mathematician whose algebraic discoveries are credited with leading to the development of computers, among other technologies. In fact, he is often referred to as the grandfather of the computer.
Completely self-taught, he developed what is now known as the algebra of logic, or Boolean algebra. His approach to algebra aligned it closely with the study of logic. Boolean operators apply logic to the narrowing of search terms - hence the term, Boolean operators. Mystery solved!
