Citations

Business Insider, http://www.businessinsider.com/drone-sales-in-us-chart-2017-5

Engineering and Technology History, http://ethw.org/Cavity_Magnetron

History of Information, http://www.historyofinformation.com/expanded.php?id=4248

History Stories, http://www.history.com/news/hungry-history/the-wartime-origins-of-the-mm

Jeep History Throughout the Years, https://www.4wd.com/article/content.jsp?childEventId=jeep-history

NASA, https://www.nasa.gov/directorates/heo/scan/communications/policy/GPS_History.html

NOVA, http://www.pbs.org/wgbh/nova/spiesfly/uavs.html

New England Historical Society, http://www.newenglandhistoricalsociety.com/percy-spencer-and-the-chocolate-bar-that-changed-the-way-you-cook/

United States Navy, http://www.navy.mil/navydata/fact_display.asp?cid=1100&tid=2100&ct=1

Statistica, https://www.statista.com/statistics/220122/unit-shipments-of-microwave-ovens/

World War II Database, https://ww2db.com/vehicle_spec.php?q=243