John Hasted (1921–2002): A Life of Atomic Precision and Fringe Frontiers
John Barrett Hasted was a figure of significant complexity in 20th-century science. To the mainstream physics community, he was a foundational architect of atomic collision physics and a dedicated educator at Birkbeck College. To the wider public and the "fringe" scientific community, he was a courageous—if controversial—investigator into the limits of the human mind and the phenomenon of psychokinesis.
1. Biography: From Radar to the Professorship
John Hasted was born on February 17, 1921. He received his education at New College, Oxford, where he demonstrated an early aptitude for the physical sciences. His academic trajectory was interrupted and simultaneously shaped by World War II; like many brilliant physicists of his generation, he contributed to the war effort through research on radar and microwave technology. This practical experience with electromagnetic fields would later inform his research into dielectrics.
Following the war, Hasted completed his D.Phil at Oxford. In 1948, he joined the faculty of Birkbeck College, University of London, an institution known for its commitment to teaching working professionals and fostering unconventional intellectual environments. Hasted spent the remainder of his career there, eventually serving as Professor of Experimental Physics and Head of the Department of Physics from 1968 until his retirement in 1983.
His tenure at Birkbeck was marked by a period of significant growth for the department. While his colleague, the legendary David Bohm, explored the theoretical and philosophical depths of quantum mechanics, Hasted served as the experimental anchor, building a world-class laboratory focused on atomic and molecular interactions.
2. Major Contributions: Atomic Collisions and Dielectrics
Hasted’s primary scientific legacy lies in two distinct areas of experimental physics:
The Physics of Atomic Collisions
Hasted was a pioneer in the study of low-energy ion-atom and ion-molecule collisions. He developed sophisticated experimental techniques to measure "cross-sections"—essentially the probability that a specific interaction (like charge transfer or ionization) will occur when particles collide. His work was vital for understanding the behavior of plasmas, upper-atmospheric chemistry, and the fundamental forces governing atomic structures.
Dielectric Properties of Matter
Hasted conducted extensive research into the dielectric properties of water and biological molecules. He investigated how substances polarize in response to an electric field, particularly at microwave frequencies. This work was crucial for the development of medical imaging and for understanding how electromagnetic radiation interacts with living tissue.
3. Notable Publications
Hasted’s bibliography reflects his dual roles as a rigorous textbook author and an experimental explorer.
- Physics of Atomic Collisions (1964): This is Hasted’s magnum opus. For decades, it served as the definitive reference text for researchers in the field. It synthesized a vast amount of experimental data and theoretical models, providing a roadmap for the study of atomic interactions.
- Aqueous Dielectrics (1973): A specialized but highly influential monograph that detailed the behavior of water molecules in electric fields, a topic of immense importance to both chemistry and biology.
- The Metal-Benders (1981): This book marked Hasted’s public pivot toward parapsychology. In it, he documented his experiments with Uri Geller and several children who claimed to possess psychokinetic abilities. While scientifically controversial, it remains a key text in the history of anomalous research.
4. Awards and Recognition
While Hasted did not receive a Nobel Prize, he was highly esteemed within the professional physics community:
- Fellow of the Institute of Physics (FInstP): A recognition of his sustained contributions to the advancement of physics.
- Leadership in ICPEAC: He was a founding figure and frequent organizer for the International Conference on the Physics of Electronic and Atomic Collisions (ICPEAC), which remains the premier global forum for his field.
- Professor Emeritus: Upon his retirement from Birkbeck in 1983, he was granted emeritus status in recognition of his decades of service and research excellence.
5. Impact and Legacy
Hasted’s legacy is split between two worlds. In atomic physics, he is remembered as a master experimentalist who provided the high-precision data necessary to validate quantum mechanical theories of collisions. His textbook educated a generation of physicists who went on to work in fusion energy, astrophysics, and semiconductor manufacturing.
In the realm of parapsychology and "fringe" science, Hasted is remembered as one of the few high-ranking academic physicists willing to risk his professional reputation to investigate the "Geller effect." While his findings in this area were largely rejected by the scientific establishment—often attributed to lapses in experimental control—his willingness to apply physical sensors (such as strain gauges) to psychic claims represented a serious attempt to bridge the gap between the known and the unknown.
6. Collaborations
Hasted was a deeply social scientist who thrived on collaboration:
- David Bohm: As colleagues at Birkbeck, Hasted and Bohm represented the two pillars of physics—experiment and theory. While Hasted focused on the tangible measurements of ions, Bohm’s work on the "Implicate Order" provided a philosophical backdrop that likely encouraged Hasted’s interest in non-local phenomena.
- The Birkbeck Group: Hasted mentored dozens of PhD students and research assistants, many of whom became leaders in the UK’s atomic physics community.
- Uri Geller: In the 1970s, Hasted collaborated with the Israeli performer Geller, subjecting him to various laboratory tests to determine if his claimed abilities could be measured by physical instruments.
7. Lesser-Known Facts
- The Musical Physicist: Outside the lab, Hasted was a passionate folk musician. He was a talented singer and player of the guitar and banjo. In the 1950s and 60s, he was a prominent figure in the British folk revival, often performing under the name "John Hasted" and even founding the Sing magazine. He saw a deep connection between the rhythms of music and the vibrations of atoms.
- The "Hasted Effect": In parapsychological circles, the term is sometimes used to describe the "bursts" of signals recorded on strain gauges when psychokinetic subjects were near, which Hasted interpreted as evidence of a physical force emanating from the mind.
- Radar Origins: His wartime work on radar was so sensitive that some of his earliest "publications" were actually classified government reports that were only declassified years later.
John Hasted passed away on May 4, 2002. He remains a poignant example of the "Birkbeck spirit"—an insistence on rigorous academic standards paired with a fearless, often eccentric, pursuit of the mysteries of the universe.