Writing 100 (Gingold)

Use AND / OR to join search terminology.

• OR - joins similar terms / terms that get at the same issue BROADENS
• AND - joins dissimilar terms NARROWS

Examples: Using OR

1. "central processing unit" OR "CPU"
2. "renewable energy" OR "green energy"
3. "dairy digester" OR biogas OR "renewable natural gas"
4. "Photovoltaic cell" OR "solar cell"

Examples: Using AND

1. efficiency AND "solar power"
2. biogas AND storage AND safety

Examples using AND & OR

Sample Search A

safety OR risk

   AND

"geothermal energy"

Question: What strategy might we take if Sample A returns too many results?  How could we modify this search?

It is common to search for a specific phrase with "quotation marks ".  Most databases will recognize the using of quotation marks to search for two works together.

Examples: " "

• "integrated development environment"
• "trolley problem"
• "safety factor"
• "fourier transform"
• "thorium reactor"