Lee Yuan-tseh
Lee Yuan-tseh is a name that made Taiwan shine on the world's scientific stage. Born in Hsinchu in 1936, through his passion for science and unwavering research spirit, he became Taiwan's first Nobel Prize laureate. His invention of the "crossed molecular beam technique" not only pioneered new research fields in chemical dynamics but also made the world recognize Taiwan's scientific capabilities anew. From a child in Hsinchu to an internationally renowned scientist, Lee's life trajectory witnesses important milestones in Taiwan's scientific development.
Early Life and Educational Background
Hsinchu Years of Enlightenment
Born November 19, 1936, in Hsinchu City, Hsinchu Prefecture (now Hsinchu City East District) during the Japanese colonial period, Lee grew up during turbulent times when his family provided a stable environment. His father, Lee Tse-fan (李澤藩), was a renowned watercolor artist and elementary school principal, while his mother, Tsai Pei (蔡配), was a traditional homemaker who managed the household diligently. This background in art and education cultivated Lee's keen observation skills and thirst for knowledge.
Childhood Scientific Enlightenment: From early age, Lee was curious about natural phenomena. He enjoyed observing insects, collecting specimens, and frequently disassembling radios and clocks at home, trying to understand their operating principles. This persistent questioning of "why" became important motivation for his later scientific research.
Growing Up During Wartime: Lee spent his childhood and adolescence during World War II. While war brought material shortages and social upheaval, it also cultivated his resilient character. He learned to find opportunities amid difficulties and exercise creativity within constraints.
Foundation of Academic Journey
Hsinchu High School Period: During his time at Hsinchu High School, Lee demonstrated exceptional learning ability. He particularly loved mathematics and physics, often discussing academic problems with classmates after class. During this period, he already showed strong interest in science, frequently reading scientific books in the library.
National Taiwan University Chemistry Department: In 1955, Lee entered National Taiwan University's Chemistry Department. During the era when NTU was transitioning from the Japanese Imperial University system, the chemistry curriculum mainly focused on analytical and organic chemistry. However, Lee was more interested in the then-flourishing field of physical chemistry.
Self-Study Spirit: Due to the department's lack of physical chemistry courses, Lee organized study groups with classmates during winter and summer breaks to independently study thermodynamics and quantum mechanics theories. To read more foreign academic papers, he actively studied German, Russian, and other languages commonly used in academia.
University Research Experience: During his time at NTU, Lee conducted research under chemistry professors. He participated in multiple chemical analysis experiments, cultivating rigorous experimental attitudes and keen observational skills. These early research experiences laid solid foundations for his later scientific career.
National Tsing Hua University Institute of Nuclear Science
After graduating from university in 1959, Lee entered National Tsing Hua University's Institute of Nuclear Science in Hsinchu to pursue his master's degree. Here, he encountered more cutting-edge scientific research and began focusing on physical chemistry.
Master's Thesis Research: Lee's master's thesis focused on atomic and molecular spectroscopy research. This study gave him deep understanding of relationships between molecular structure and physical properties, planting seeds for his later Nobel Prize research.
Establishing International Vision: During his time at Tsing Hua, Lee read extensive foreign scientific literature, gradually building an international academic perspective. He realized that to achieve breakthroughs in scientific research, he must go beyond Taiwan to learn the most advanced techniques in world-class laboratories.
Studying in America: Career Turning Point
University of California, Berkeley
In 1962, Lee received a scholarship to pursue his doctoral degree at UC Berkeley. This decision changed his life and created history for Taiwan's scientific community.
Doctoral Research Direction: At Berkeley, Lee chose chemical kinetics as his research direction. His doctoral thesis focused on studying chemical reaction mechanisms, particularly energy transfer problems during molecular collision processes.
Rigorous Scientific Training: Berkeley's academic environment was extremely demanding, requiring students to have not only deep theoretical foundations but also exquisite experimental skills. Lee received world-class scientific training here, learning how to design precise experiments, analyze complex data, and write high-quality academic papers.
Completing Doctoral Thesis: After five years of effort, Lee completed his doctoral degree in 1967. His doctoral thesis received high academic evaluation, opening doors for his subsequent research career.
Harvard University Postdoctoral Research
In 1967, Lee went to Harvard University for postdoctoral research under Nobel Chemistry laureate Dudley R. Herschbach. This experience became the most crucial turning point of his scientific career.
Birth of Crossed Molecular Beam Technique: At Harvard, Lee collaborated with Professor Herschbach, dedicating themselves to improving and developing crossed molecular beam technique. After two years of tireless work, they successfully assembled the world's first crossed molecular beam instrument, a technique that revolutionarily changed chemical kinetics research methods.
Breakthrough in Technical Innovation: Traditional chemical reaction research was conducted under normal temperature and pressure conditions, where gas molecules constantly collide with each other, changing direction and speed, making molecular motion quite chaotic. Lee's crossed molecular beam technique could make two molecular beams collide at specific angles and speeds in high vacuum environments, enabling precise observation and analysis of chemical reaction processes.
Importance of Research Results: This technique allowed scientists to "see" every step of chemical reactions at the molecular level, understanding how reactants transform into products, how energy transfers between molecules, and reaction stereochemistry details. This pioneered an entirely new research field in chemical dynamics.
Academic Career Peak: Chicago and Berkeley Periods
University of Chicago Professor Period
In 1969, Lee was appointed Assistant Professor in the Chemistry Department at University of Chicago, beginning his formal career in American academia. During his five years in Chicago, he established his own laboratory, trained his first graduate students, and published many important research results.
Laboratory Establishment: Lee established an advanced molecular beam laboratory at University of Chicago. He not only had to guide student research but also personally design and improve experimental equipment. During this period, his technical innovation abilities were fully demonstrated.
Return to Berkeley: Pinnacle of Scientific Achievement
In 1974, Lee was invited to return to UC Berkeley as Chemistry Professor. Here, his scientific research reached unprecedented heights.
Continuous Technical Improvements: Lee continuously improved crossed molecular beam technique, enabling study of more complex chemical reactions. He developed new detection methods capable of measuring reaction products' internal energy distribution and angular distribution.
Important Research Results:
Fluorine Atom and Hydrogen Molecule Reaction: Lee detailed study of F + H₂ → HF + H reaction revealed many unexpected phenomena, becoming a classic case in chemical kinetics textbooks.
Oxygen Atom and Alkane Reactions: He systematically studied oxygen atom reactions with various alkane molecules, discovering reaction stereoselectivity patterns and providing important theoretical foundations for combustion chemistry.
Metal Atom Reaction Dynamics: Lee pioneered study of metal atom-molecule reactions, revealing molecular mechanisms of metal catalytic reactions.
1986 Nobel Chemistry Prize: Taiwan's Pride
Award Announcement
October 15, 1986, the Royal Swedish Academy of Sciences announced that year's Nobel Chemistry Prize would be awarded to Dudley Herschbach, John Charles Polanyi, and Lee Yuan-tseh for their contributions to "research on chemical elementary process dynamics."
Award Reasoning: The Nobel Committee specifically mentioned in their citation: "The work of these three scientists enables us to understand how chemical reactions proceed, and their research results are fundamentally important for understanding and controlling chemical reactions."
Taiwan's Historic Moment: Lee became the first Nobel Prize winner born and raised in Taiwan. This news caused enormous sensation in Taiwan, with people throughout Taiwan feeling proud and excited about this historic achievement.
International Impact: Lee's Nobel Prize was not only personal honor but also made international society recognize Taiwan's scientific capabilities anew. This award proved Taiwan's ability to cultivate world-class scientific talent.
Significance of Scientific Contributions
Technical Innovation Importance: Lee's crossed molecular beam technique is hailed as a revolutionary tool for chemical kinetics research. This technique enables scientists to study chemical reactions at unprecedented detail levels, like using high-speed photography to film chemical reaction "movies."
Combining Theory and Experiment: Lee's research not only provided precise experimental data but also promoted chemical kinetics theory development. His work built bridges between theoretical calculations and experimental observations.
Application Value: Crossed molecular beam technique has extremely wide applications, from atmospheric chemistry to combustion science, from catalytic reactions to astrochemistry. This technique provided scientific foundations for solving many practical problems.
Return to Serve Taiwan: Academia Sinica President Period
Decision to Return Home
In 1994, at his academic peak, Lee made a surprising decision: resign from UC Berkeley professorship and return to Taiwan as President of Academia Sinica. This decision shocked international academic circles and excited Taiwan's scientific community.
Motivation for Returning: Lee stated in multiple interviews that he hoped to return to his homeland and contribute to Taiwan's scientific development. He believed Taiwan had potential to become Asia's scientific center, requiring more investment and construction.
Hometown Sentiment: Despite achieving tremendous success in America, Lee always maintained deep feelings for Taiwan. He hoped to use his experience and reputation to elevate Taiwan's scientific research standards.
Academia Sinica President Term (1994-2006)
During his twelve years as Academia Sinica President, Lee profoundly influenced Taiwan's scientific development.
Organizational Reform and Modernization: Upon taking office, Lee immediately began Academia Sinica's organizational reform. He introduced international management systems, established peer review mechanisms, and raised research quality standards.
Establishing New Research Institutes: Under his leadership, Academia Sinica established multiple new research institutes, including Institute of Information Science, Institute of Biomedical Sciences, and Genomics Research Center, expanding research field breadth.
Promoting International Cooperation: Lee actively promoted international cooperation, establishing collaborative relationships with world-class research institutions. He invited many internationally renowned scholars to conduct research and exchanges at Academia Sinica.
Continued Scientific Research and Innovation
Research Expansion
Even while serving in administrative roles, Lee maintained his passion for scientific research, expanding his research focus to more fields:
Environmental Chemistry: Lee began focusing on environmental issues, studying atmospheric pollution and ozone layer destruction. His team published multiple important papers on atmospheric chemical reaction mechanisms.
Cluster Chemistry: He pioneered research on metal clusters and molecular clusters, a field that later developed into an important branch of nanoscience.
Surface Science: Lee's research team also explored surface science, studying molecular adsorption and reaction processes on solid surfaces.
Social Participation and Education Reform
Education Reform Participation
Lee was not only an outstanding scientist but also an active promoter of educational reform.
Nine-Year Integrated Curriculum Participation: In the late 1990s, Lee participated in planning Taiwan's nine-year integrated curriculum. He advocated that curriculum design should cultivate students' thinking abilities rather than rote knowledge instruction.
Science Education Reform: He particularly focused on science education reform, believing students should learn science through experiments and observations rather than memorizing formulas and laws.
International Scientific Cooperation
International Organization Participation: Lee actively participated in international scientific organization activities. He served as President of the International Council for Science (2011-2014), promoting global scientific cooperation.
Supporting Asian Science: He particularly focused on Asian regional scientific development, actively promoting scientific exchange and cooperation among Asian countries.
Continuous Influence and Future Prospects
Lee Yuan-tseh's life exemplifies the pursuit of truth and excellence. From a child in Hsinchu to a world-class scientist, he used his efforts to prove Taiwan people's potential and strength. He not only achieved outstanding accomplishments in scientific research but also made significant contributions to Taiwan's science education and social development. His spirit and philosophy will continue inspiring new generations of Taiwan scientists to explore bravely in the ocean of knowledge and contribute their strength to human civilization's progress. Lee's story tells us that with dreams, persistence, and effort, everyone can potentially create their own miracles.