William Gould Dow


William Gould Dow

Infobox_Scientist
name = William Gould Dow
birth_date = September 30, 1895
birth_place = Faribault, Minnesota, U.S.
death_date = October 17, 1999 (aged 104)
death_place = Bellevue, Washington, U.S.
alma_mater = University of Minnesota
University of Michigan
work_institution = University of Michigan
Environmental Research Institute of Michigan
residence =
field = electrical engineering, space research, computer engineering, nuclear engineering

William Gould Dow (September 30, 1895 – October 17, 1999) was an American scientist, educator and inventor. He was a pioneer in a variety of fields, including electrical engineering, space research, computer engineering, and nuclear engineering. He helped develop life-saving radar jamming technology during World War II, and was a long-time professor at the University of Michigan.

Biography

Early life

William Dow was born on September 30, 1895 in Faribault, Minnesota to Dr. James J. Dow and the former Myra Brown,cite book
last = Cook
first = Robert C.
title = Leaders in American Science
publisher = Who's Who in American Education
year = 1968
url = http://books.google.com/books?id=TYoPAAAAIAAJ
accessdate = 2007-07-24
pages = p. 220
] who had had the distinction of being the first two students to graduate from Carleton College just months before their marriage in 1874.cite web
url = http://www.northfieldhistory.org/wiki/index.php?title=Carleton_College
title = Carleton College - Northfield History Timeline
accessdate = 2007-07-24
] He was the great-great-grandson of Revolutionary War veteran Corporal Silas Gould.cite book
last = Cornish
first = Louis Henry
title = National Register of the Society, Sons of the American Revolution
year = 1902
publisher = Press of A.H. Kellogg
url = http://books.google.com/books?id=BwyqRbA-2ykC
accessdate = 2007-07-24
pages = p. 603
]

He attended the University of Minnesota, obtaining his BS in 1916 and his BSE in EE in 1917. During World War I, Dow was a lieutenant in the US Army Corps of Engineers, with stints at Camp A.A. Humphreys, Virginia (now Fort Belvoir) and the National Bureau of Standards.cite web
title = Tribute to William Gould Dow
url = http://www.eecs.umich.edu/eecs/dow/b-day_tribute.html
accessdate = 2007-07-24
] Upon leaving the Army in 1919, he took on a variety of sales and marketing positions, mainly selling electrical equipment for the Westinghouse Electric Corporation.

Academia

In 1924, Dow married Edna Lois Sontag, and two years later he joined the faculty of the University of Michigan as an instructor in electrical engineering. He obtained his MS from Michigan in 1927. While on the faculty, he wrote what would become a classic textbook in the field, "Fundamentals of Engineering Electronics", published in 1937. He was made an associate professor in 1938.

Dow obtained a contract from General Motors' Fisher Body division to develop new induction welding technologies that used higher frequency current than previous methods. Because of the skin effect of alternating current moving through a conductor, higher frequencies meant more of the current (and thus the heat required for welding) was contained in the very upper layers of the material to be welded, rather than being wasted by being distributed deeper inside. The patent Dow obtained for his method contemplates frequencies of up to 3 MHz of alternating current. Although originally intended for use in automobile manufacturing, when the US entered World War II, GM instead put his technology into production manufacturing airplanes.cite news
last = Wondero
first = Dawn
title = Nearly 100 and Still on the Go
work = Michigan Professional Engineer
date = May-June 1995
pages = 12-13
url = http://www.eecs.umich.edu/eecs/dow/Dow100.pdf
]

In 1942, following the end of his GM contract, Dow went to work directly in support of the war effort at the Harvard Radio Research Laboratory, directed by Frederick Emmons Terman. The laboratory was dedicated to finding effective radar countermeasures, including both jamming of enemy radar signals and determining the location of enemy radar installations.cite web
title = Guide to the Frederick Emmons Terman Papers
url = http://content-backend-a.cdlib.org/view?docId=tf029000zm&chunk.id=c01-1.8.8.2
accessdate = 2007-07-24
] His work took him to London, where he narrowly avoided a V-2 rocket attack; cite web
title = William Gould Dow and the Birth of the Space Physics Research Laboratory
url = http://www.sprl.umich.edu/SPRL/history/dowhistory.html
accessdate = 2007-07-24
] the V-2 would eventually play a large role in his post-war research. The radar-jamming countermeasures Dow worked on were nearly 100% effective, and were credited with saving the lives of many Allied pilots.cite press release
title = U-M Prof. William Dow died Oct. 17 at age 104.
url = http://www.ns.umich.edu/htdocs/releases/story.php?id=2950
publisher = The Regents of the University of Michigan
date = October 20, 1999
accessdate = 2007-07-24
]

After returning to the University of Michigan in 1945, Dow was made a full professor. Using the connections he had made during the war, Dow began trying to bring military and government contracts to the university. In January 1946, at a conference on telemetry, he learned that the Army and Navy had begun a joint research program involving captured V-2 rockets. He arranged to attend the second meeting of the V-2 Upper Atmosphere Research Panel (later the Rocket and Satellite Research Panel or simply Rocket Research Panel), and would remain a member of the panel until it ceased operation in 1960. The panel included other luminaries of space research such as James Van Allen and, later, the father of the V-2 rocket, Wernher von Braun.cite book
title = Beyond the Atmosphere: Early Years of Space Science
last = Newell
first = Homer Edward
url = http://history.nasa.gov/SP-4211/appen-a.htm
accessdate = 2007-07-31
publisher = Scientific and Technical Information Branch, National Aeronautics and Space Administration
series = The NASA history series, 4211
pages = 414
location = Washington, D.C.
year = 1980
]

The panel required all of its members to be actively engaged in relevant research, and as his first experiment, Dow chose to measure ion and electron temperatures in the ionosphere, under contract to the Air Force. The payload consisted of a vacuum tube and a Langmuir probe, but the launch (on August 22, 1946 at White Sands Missile Range) was unsuccessful, with the V-2 crashing only a quarter-mile away from the launch site. The experiment was successfully launched in November of the same year. Another early experiment provided increased accuracy for estimates of the neutral density of the atmosphere, which is a critical factor in the computation of atmospheric drag, and which was thus important to determine accurately before spacecraft could be designed to successfully stand the rigors of atmospheric re-entry.

During this same period of time, Dow helped start a number of various research laboratories at the University, including the Physics Research Lab, the Space Physics Research Lab, the Plasma Engineering Lab, and the Michigan Aeronautical Research Center (which would eventually become the Willow Run Research Center and eventually the Environmental Research Institute of Michigan, or ERIM).

In 1958, Dow was named Chairman of the Department of Electrical Engineering and Computer Science, a position he would hold until 1964, when he retired from teaching. His wife Edna had died in 1963. After retiring from active teaching, he served part-time as a Senior Research Geophysicist in the Space Physics Research Lab until 1971. Dow remarried in 1968, to Katherine "Kitty" Keene, who would also pass away in 1997.

When ERIM split off from the University of Michigan in 1972, Dow became a member of its Board of Trustees. He left the board in 1990, but remained a Trustee Emeritus. During this time, Dow continued his research, now in the field of fusion power, with several more patents to his credit.

Later Years

Dow remained active late in life, despite failing hearing. He continued to go in to his two offices four days a week even after his 100th birthday, a milestone which the EECS Department commemorated by hosting a two-day birthday celebration for his friends and colleagues from around the country. Finally, at the age of 102, after the death of his second wife, he left Michigan to split time between his sons' homes in Texas and Washington.

William Dow died on October 17, 1999, aged 104, in Bellevue, Washington, while residing with his son Daniel, who himself had been Chairman of the Department of Electrical Engineering at the University of Washington in Seattle for a period of time starting in 1968.cite paper
last = Smith
first = George
date = August 1969
url = https://www.ee.washington.edu/about/centennial/smith_history_1969.pdf
title = Early History of the Department of Electrical Engineering, University of Washington
accessdate = 2007-07-24
format=PDF
]

Commemoration

* In 1980, the University of Colorado awarded him an honorary Doctorate.
* In 2001, the University of Michigan Department of Electrical Engineering and Computer Science established the William Gould Dow Distinguished Lectureship, the highest external honor the department bestows. It is awarded on the basis of "lifetime achievements, groundbreaking contributions to their fields, and sustained research excellence." In addition to presenting a lecture at the university, recipients receive a $5,000 honorarium.cite web
url = http://www.eecs.umich.edu/eecs/dow/index.html
title = William Gould Dow Distinguished Lectureship
accessdate = 2007-07-24
]

Books

* cite book
title = Fundamentals of Engineering Electronics
last = Dow
first = William Gould
year = 1937
publisher = Chapman & Hall
url = http://books.google.com/books?id=vAolAAAAMAAJ

Articles

* cite journal
title = Supersonic Wind at Low Pressures Produced by Arc in Magnetic Field
journal = Physical Review
volume = 79
issue = 1
pages = 186
date = July 1950
doi = 10.1103/PhysRev.79.186
publisher = American Physical Society
author = Early, H. C.

Patents

*US Patent|2400921: Welding Method (assigned to General Motors)
*US Patent|2491169: Large Throat Portable Welder (assigned to General Motors)
*US Patent|2493950: High-Frequency Inductive Welding Apparatus (assigned to General Motors)
*US Patent|2556685: Small Throat Portable Welder (assigned to General Motors)
*US Patent|3501376: Method and Apparatus for Producing Nuclear Fusion (assigned to Consumers Power Company)
*US Patent|4347621: Trochoidal nuclear fusion reactor (assigned to Environmental Institute of Michigan)
*US Patent|4244782: Nuclear fusion system (assigned to Environmental Research Institute of Michigan)

References


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