use+of+experiments
41Field experiment — A field experiment applies the scientific method to experimentally examine an intervention in the real world (or as many experimental economists like to say, naturally occurring environments) rather than in the laboratory. Field experiments, like …
42Econometrics — Economics …
43Scientific control — Take identical growing plants and give fertilizer to half of them. If there are differences between the fertilized plant group and the unfertilized control group, these differences may be due to the fertilizer. Scientific control allows for… …
44Metal-mesh optical filters — are optical filters made from stacks of metal meshes and dielectric. They are used as part of an optical path to filter the incoming light to allow frequencies of interest to pass while reflecting other frequencies of light. Metal mesh filters… …
45Physicians Committee for Responsible Medicine — PCRM redirects here. For the political party, see Party of Communists of the Republic of Moldova. Founder(s) Neal D. Barnard Founded 1985 Location Washington, D.C. Focus to promote non animal methods in research and education (opposition to… …
46Muslim world — For a list of Muslim countries, see List of Muslim majority countries. The Muslim population of the world map by percentage of each country, according to the Pew Forum 2009 report on world Muslim populations. The term Muslim world (also known as… …
47Neuroprotection — within the nervous system protects neurons from apoptosis or degeneration, for example following a brain injury or as a result of chronic neurodegenerative diseases. Currently, there is a broad interest in how apoptosis and neuroprotection affect …
48Battery charger — This unit charges the batteries until they reach a specific voltage and then it trickle charges the batteries until it is disconnected …
49History of physics — The modern discipline of physics emerged in the 17th century following in traditions of inquiry established by Galileo Galilei, René Descartes, Isaac Newton, and other natural philosophers.Fact|date=September 2008 Prior to this time, a unified… …
50Zener cards — are cards used to conduct experiments for extra sensory perception (ESP), most often clairvoyance. Perceptual psychologist Karl Zener designed the cards in the early 1930s for experiments conducted with his colleague, parapsychologist J. B. Rhine …
