Thomas C. O'Haver

Professor Emeritus

Department of Chemistry and Biochemistry
University of Maryland at College Park
College Park, MD 20742

B.S. Chemistry, 1963, Spring Hill College

Ph.D., Analytical Chemistry, 1968, Univ. of Florida (J. D. Winefordner)

At the University of Maryland from 1968 to 1999, my research work was in the area of analytical spectroscopy and instrumentation development; derivative and wavelength modulation spectroscopy; continuum-source simultaneous multielement atomic absorption spectrometry; microcomputer applications in science education; diode-array spectroscopy; digital signal processing; science education; applications of constructivist pedagogy in science education. I have worked as a consultant for many companies and have presented numerous short courses and workshops. Check out the latest version of my handbook on signal processing (free PDF file). User reviews.

Retirement (1999-present)

Since retirement in 1999, I've continued development of my popular Web-based tutorial and lavishly praised free toolkit of software programs for signal processing for science researchers and students. My handbook of signal processing (user reviews) and Web pages have been viewed millions of times from 162 countries and have been cited in over 750 published papers, theses, and patents.This work is described on "How this site came to be".

Public Science Outreach

I have been giving a series of presentations for the Rockville Science Center, both in person and via Zoom. These are in PowerPoint format (.pptx):

1. From Telegraph Cables to Artificial Intelligence: Unlocking the Power of Data (PowerPoint)
2. Making Waves: The basic math of sound and music. (PowerPoint)
3. (Later this year) The Professor's Garden: The hidden science and mathematics behind nature's beauty (summary).

My wife and I have developed and presented several workshops for teachers on the applications of educational technology and Adult Education Courses on technology-related topics.

Research, teaching, and service: 1968-1999

Publications and Presentations
(Click here to search Google Scholar for my publications and citations).
I have published over 100 professional journal papers and book chapters; I have presented over 200 seminars and talks presented at national and international institutions and conferences. Click here for my academic Curriculum Vitae. According to ResearchGate, I have 2,786 citations to my work (758 to my retirement project on signal processing).

National Awards and Distinctions
Tour Speaker for the Spectroscopy Society of Canada, 1979.
Tour Speaker for the American Chemical Society, 1980 and 1981.
Strock Award from the Society of Applied Spectroscopy for research on continuum-source atomic absorption spectrometry, 1988.
EDUCOM/NCRIPTAL awards for Best Design and for Best Chemistry software, for software program SPECTRUM, 1990.

Science-related Web-based projects

Interactive Computer Models for Analytical Chemistry Instruction 

Signal Processing Tools for Scientists and Engineers

Introduction to Signal Processing in Chemical Analysis

ElectroSim: Electronic Circuit Simulations

Online material for chemistry courses I have developed and taught

Chem 121: Introductory Chemistry Course for Non-Science Majors
Chem 498C: Electronics and Computer Interfacing in Chemistry
Chem 623: Optical Methods of Quantitative Analysis

On-line conferences

I organized the first CHEMCONF on-line conference during the summer of 1993. 450 participants used Listserv e-mail to discuss fifteen papers, which were available on FTP and Gopher servers. All subsequent conferences have been Web-based. Participation has approximately doubled since the first CHEMCONF, and the frequency of the on-line conferences, now called CONFCHEM, has expanded to several per year.  Press coverage:

CHEMCONF '93: First Online Chemical Education Conference
CHEMCONF '95: Faculty Rewards - "Can We Implement the Scholarship of Teaching?"
CHEMCONF '96: New Initiatives in Chemical Education
CHEMCONF '97: Summer Online Conference on Chemical Education

CHEMCONF '98: School-year Online Conference on Chemical Education

Science education and other general educational projects

School-based Inservice Workshops for Teachers
Handouts from Technology workshops and training presentations
Investment Simulations

Completed projects, no longer being updated

         Selected sections from Luminescence Analysis in Analytical Chemistry, J. D. Winefordner, T. C. O'Haver, and S. Schulman, Wiley-Interscience, New York, 1972.

         Maryland Collaborative for Teacher Preparation

         Internet Resources for Science and Mathematics Education

         Fairland Elementary School Student Projects Page

Personal Information

Resides in Naples, FL (visitor's guide)and Silver Spring, MD. Married to Mary Louise O'Haver. Sons Christopher and Robert.
Personal biography.

Other retirement activities: Ornamental Landscape Gardening (Pictures of my retirement landscaping project)    The Waterbird Gatherings of Naples, FL (Video).  Other personal projects: Where is the literature of the origins of humanity?

Our Travel Pictures: England, Scotland, China, Japan, Netherlands, Belgium, France, Spain, Portugal, Switzerland, Denmark, Norway, Sweden, Finland, Russia, Germany, Estonia, Iceland, Costa Rica, Peru, Ecuador, Galapagos, South Africa, Bush camps in Botswana, Zambia, and Zimbabwe, Thailand, Vietnam, Laos, Cambodia, Cuba, India, Mexico, Belize, Panama, Gibraltar, Morocco, Mallorca, Menorca, Tangiers, Curacao, Aruba, most Caribbean islands, Panama Canal; Mongolia, Tibet, China, Hong Kong; Argentina, Chile, and Patagonia, Australia and New Zealand. National Parks and Forests of California, Utah, Arizona, New Mexico, Montana, Wyoming and Nevada; Finger Lakes, Niagara Falls, Canada, Hudson Valley, Alaska, Seattle, San Diego, Chicago, Dry Tortugas.  Travel Map.

Last updated March, 2024. Questions should be directed to Prof. Thomas O'Haver, at