1 These are research materials that are necessary to perform research. 2  All inventions, discoveries and knowledge can become research tools. 3  Universities and public research institutions have many resources that can be considered research tools.
Waldo, Kansas. Waldo is a city in Russell County, Kansas, United States. As of the 2010 census, the city population was 30. Contents.
A group of people in San Rafael, California, calling themselves the Waldos because their chosen hang-out spot was a wall outside the school, used the term in connection with a fall 1971 plan to search for an abandoned cannabis crop that they had learned about.20 event in Golden Gate Park, San Francisco, April 20, 2013. Students and others gather for a 420 Day event in Porter Meadow at the University of California, Santa Cruz, campus on April 20, 2007. April 20 has become a counterculture holiday in North America, where people gather to celebrate and consume cannabis.