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History
Web Filters
Use
Operators
Image Filters
100
This is the occupation of George Boole, the inventor of Boolean Logic.
What is a mathematician? (Also accept philosopher)
100
This filter is used for pages you have already visited.
What are visited pages?
100
This use for Boolean logic is to narrow search results.
What are search operators?
100
This operator narrows the search to just the two search terms together.
What is and? (also accept plus sign)
100
This filter is used to control the resolution on images.
What is size?
200
This man's similar work was published nearly on the same day as Boole's.
Who is Augustus De Morgan?
200
This filter is used if you want the literal use of the search term.
What is verbatim?
200
This filter is used to find definitions, synonyms, antonyms, etc.
What is dictionary?
200
This operator is used to wide search results by including both separate search terms.
What is or?
200
This filter is used to have a similar hue on all images.
What is color filter?
300
This type of math was the basis of Boole's equations, which are the starting point for operators.
What is algebra?
300
This filter is used to differentiate accurate results from irrelevant or explicit content.
What is SafeSearch?
300
If you need to find a specific term near your position, this operator helps.
What is nearby search?
300
This is used if there is a range between two numerical terms.
What is an ellipses? (...)
300
This filter is used to find a specific form of image, e.g. line drawing, animated (gifs), photos, clipart.
What is type?
400
This year was when Boole published his book on Boolean algebra.
What is 1847?
400
If you wanted to organize search results by literate difficulty, use this filter.
What is reading level?
400
This daunting task was accomplished by the Deep Blue computer against Garry Kasparov in 1997, using Boolean algebra.
What is winning at chess?
400
This "wildcard" is used for varied spellings in search.
What is asterisk?
400
This is used for recent images, or images published on a specific date.
What are publish dates?
500
This person applied Boole's logic to electronic switching circuits in 1937
Who is Claude Shannon?
500
This filter is used when searching for inventions or publishing dates.
What are patents?
500
Boolean logic works well with computers, as it is compatible with this code
What is binary?
500
This operator is used to look for the search terms within a page's title.
What is intitle:term