Ionospheric Research Instrument Directory References Discover Was Martin Luther King, Jr., a Republican or a Democrat? Why Is Alcohol Measured by Proof? 6 Small Kingdoms of the World Why Do We Say “A Pair of Pants”? Why We Celebrate MLK Day Why Does the United States Have More Tornadoes than Any Other Country? 12 Greek Gods and Goddesses Contents Ionospheric Research Instrument instrument Ask the Chatbot a Question Ask the Chatbot a Question Also known as: IRI Learn about this topic in these articles:HAARP In HAARPThe main instrument is the Ionospheric Research Instrument (IRI), an array of 180 radio antennas spread over an area of 0.13 square kilometer (33 acres).Read More
