Vannevar Bush was an American engineer, inventor and science administrator who is considered a founder of digital computers and the information age. Some of his key accomplishments and ideas included developing one of the first analog computers called the Differential Analyzer, proposing the idea of the Memex which anticipated key aspects of hypertext and the World Wide Web, and serving as director of the Office of Scientific Research and Development during World War II where he oversaw development of technologies like radar and the proximity fuse. Bush is seen as a pioneer in fields like information science and his 1945 article "As We May Think" laid out a vision for how information and knowledge could be more effectively stored and retrieved using new technologies.

1. LIBRARY LUMINARY –
VANNEVAR BUSH
GODFATHER OF THE INTERNET AND OF
INFORMATION SCIENCE
(1890 – 1974)

2. • Born in Chelsea, Massachusetts in 1890. Son of a Universalist minister,
descended from sea captains.
• Graduated from Tufts College in 1913 with a B.S. and M.S. in Electrical
Engineering.
• PhD studies at Harvard and MIT, received joint PhD degree in 1917.
Thesis: Oscillating-Currrent Circuits: An Extension of the Theory of
Generalized Angular Velocities, with Applications to the Coupled Circuit and
the Artificial Transmission Line, 1916.
Biographical data

3. • Worked at National Research Council during World War 1, developed
anti-submarine warfare technologies.
• Returned to teach at MIT after the war.
• Developed a thermostatic switch and formed a company, Spencer
Thermostat Company, 1922.
• Formed a company, American Appliance Company, to market a new
invention, the S-tube, which enabled a radio to operate from a single
power source. That company later came to be known as Raytheon, the
giant defense contractor (“Vannevar Bush,” 2013).
Biographical data, continued.

4. The Differential Analyzer was an analog
mechanical computer that could solve
differential equations with up to 18
independent variables. Previously, one of
Bush’s masters students, Herbert R. Stewart,
had developed the product integraph in 1925, a
device for solving first-order differential
equations. Harold Hazen, another of Bush’s
masters students, proposed and succeeded in
extending the device to handle second-order
differential equations (“Differential
Analyzer,” 2013)
Inventions by Bush and his associates –
the Differential Analyzer
(Herbert Stewart and Harold Hazen, 1927)
The Differential Analyzer at work

5. Shannon, under Bush’s tutelage, proved that
Boolean algebra could be used to simplify the
arrangement of the relays that were the
building blocks of the electro- mechanical
automatic telephone exchanges of the day.
His communications model, at right, a process
of signal transmission, from source to
destination, applied metrics to message parts
based on their statistical probability and
helped predict the likelihood of errors and the
best way to minimize them. (Case, 2002)
(“Claude Shannon,” 2013)
Inventions by Bush and his students –
Digital Circuit Design Theory
(Claude Shannon, 1937)

6. Bush was commissioned to design and develop a rapid analytical machine to aid
in codebreaking. The project went over budget and was not delivered until 1938,
when it was found to be unreliable in service. Nonetheless, it was an important
step toward creating such a device (Zachary, 1997).
In a paper called “Instrumental Analysis", he suggested building an electro-
mechanical machine to accomplish Charles Babbage’s goals for the Analytical
Engine. This was almost exactly one hundred years after Babbage began
designing his Analytical Engine (Norman, 2013).
In the same paper Bush wrote that four billion punched cards were being used
annually in electric tabulating machines. This amounted to ten thousand tons of
punched cards. (Norman, 2013).
Inventions by Bush and his associates –
Rapid Analytical Machine

7. Inventions by Bush and his associates –
Proximity Fuze
Under Bush’s leadership the U.S. Office of Scientific Research and
Development (OSRD) developed a proximity fuze, a fuze inside an
artillery shell that detonated upon making contact with its target.
During WW2, the proximity fuze was credited with three
significant effects:
1. Provided defense from Japanese Kamikaze attacks in the Pacific:
sevenfold increase in the effectiveness of 5-inch antiaircraft artillery.
2. Important part of radar-controlled antiaircraft batteries that
neutralized German aerial bomb attacks on England.
3. Effectively used in Europe starting in the Battle of the Bulge
against German divisions, and changed the tactics of land warfare.
(“Proximity Fuze,” 2013)

8. Professional positions held:
1. President, Carnegie Institution for Science. 1938.
2. Vice Chairman, Chairman, National Advisory Committee for Aeronautics. 1938.
3. Chairman, National Defense Research Committee. 1940.
4. Director, Office of Scientific Research and Development. 1941.
5. Manhattan Project, Atomic Energy Commission. 1947.
6. Chairman, National Science Foundation.
7. Board of Directors, American Telephone and Telegraph (AT&T). 1947-1962.
8. Board of Directors, Merck Corporation. 1949-1962.
9. Regent, Smithsonian Institution. 1943-1955.

9. 1. AIEE’s Edison Medal. 1943.
2. Public Welfare Medal, National Academy of Sciences. 1945
3. IRI Medal, Industrial Research Institute. 1949.
4. Medal of Merit (with bronze oak leaf cluster). 1948.
5. National Medal of Science. 1963.
6. Atomic Pioneers Award. 1970.
7. Knight Commander, OBE. 1948.
8. French Legion of Honor. 1955.
Awards received:

10. 1. PhD dissertation, Oscillating-Current Circuits: An Extension of the Theory of Generalized
Angular Velocities, with Applications to the Coupled Circuit and the Artificial Transmission Line.
1916.
2. Principles of Electrical Engineering (with William H. Timble). 1922.
3. As We May Think. Atlantic Monthly. July, 1945.
4. Science, the Endless Frontier: a Report to the President. Washington, D. C.: U.S. Government
Printing Office. OCLC 1594001. July, 1945.
5. Modern Arms and Free Men: a Discussion of the Role of Science in Preserving Democracy.
New York: Simon and Schuster. OCLC 568075.
6. Operational Circuit Analysis. New York: J. Wiley & Sons. OCLC 2167931.
7. Endless Horizons. Washington, D.C.: Public Affairs Press. OCLC. 1152058. 1946.
8. Science Is Not Enough. New York: Morrow. OCLC 520108. 1949, 1967.
9. Pieces of the Action. New York: Morrow. OCLC 93366. 1970.
Written works:

11. Vannevar Bush’s Ideas
and Contributions to
Information Science

12. “As We May Think,” an article Bush wrote for
the July, 1945 Atlantic Monthly, lays out many
of his ideas and visions for the future
information age, many of which are focused on
information science, many of which have yet to
be fully developed or exploited (Zachary, 1997).
Bush’s Ideas and Contributions
to Information Science

13. • Bush’s Memex Machine, “a device in which a
person stores all his books, records, and
communications” (Bush, 1945).
• “Mechanized so that it may be consulted with
exceeding speed and flexibility” (Bush, 1945).
• Designed to be “an enlarged intimate supplement
to [human] memory (Bush, 1945).
Bush’s Ideas and contributions to Information Science -
the MEMEX machine
The Memex Machine

14. Bush goes to the heart of the information question. He says the lag between the
proliferation of knowledge and our ability to create technologies, methodologies to make
that knowledge useful lies in the bias towards “indexing” and the artificiality (storing
data alphabetically or numerically) that indexing systems provide (Bush, 1945).
The human mind, Bush wrote, “does not work that way,” following rules to track
information from one subclass to another. Instead, Bush says, the human mind “operates
by association” (Bush, 1945).
The MEMEX machine mimics that “selection by association” of ideas, and forms
“associative trails” that can be portable, transferable, inheritable. (Zachary, 1997).
Bush’s Ideas and contributions to Information Science –
More ideas about the MEMEX machine

15. For the rest of his life, Bush pondered on the significance of the memex machine idea
(Zachary, 1997):
1. Such a machine would greatly reduce information overload;
2. Such a machine could record intimate thoughts, including commentary and criticism,
(and using a line from Shannon, eliminate errors and flaws along the way);
3. Such a machine could give rise to thinking aids that could greatly aid human-machine
consciousness, expanding human thought capacity.
Bush’s Ideas and contributions to Information Science –
More ideas about the MEMEX machine

16. 1. He was the first to see the importance of venture capital and how angel investors, in
conjunction with major research universities, could give rise to whole new industries.
2. Via one of his students, Frederick Terman, he helped to create Silicon Valley.
3. His idea of associative trails gave rise to hypertext (Ted Nelson).
4. His predictions are readily apparent in everyday items such as the Ipod, the Ipad, the
Kindle, etc.
5. “Bush’s great insight was realizing that there’s more value in the connections between
data than in the data itself.” (Zachary, 1997)
Bush’s Ideas and contributions to Information Science –
Why is Vannevar Bush a luminary?

17. Homework assignment from Mrs. Nimmo’s third grade class at F.D.
Bluford Elementary School, Greensboro, NC. 1965.
“The type of machine that I
would like built is an
information machine. If it
were built, I would put in a
dime and get information on
all subjects.”

18. ◦ Case, D.O. (2002). Looking for Information: A Survey of Research on Information Seeking, Needs, and
Behavior. San Diego: Academic Press. Retrieved May 22, 2013 from https://blackboard.cua.edu.
◦ Claude Shannon. (n.d.). In Wikipedia. Retrieved June 1, 2013, from
http://en.wikipedia.org/wiki/Claude_Shannon
◦ Differential Analyzer. (n.d.). In Wikipedia. Retrieved June 1, 2013, from
http://en.wikipedia.org/wiki/Differential_analyzer
◦ Norman, J. The Rapid Arithmetic Machine Project. In Jeremy Norman’s From Cave Paintings to the Internet.
Retrieved June 1, 2013, from http://www.historyofinformation.com/expanded.php?id=733
◦ Proximity Fuze. (n.d.). In Wikipedia. Retrieved June 1, 2013, from
http://en.wikipedia.org/wiki/Proximity_fuze
◦ Vannevar Bush. (n.d.). In Wikipedia. Retrieved May 24, 2013, from http://en.wikipedia.org/wiki/Vannevar-
Bush
◦ Zachary, G. P. (1997). The Godfather. WIRED, November, 1997. Retrieved May 24, 2013, from
http://www.wired.com/wired/archive/5.11/es_bush_pr.html
Reference list