Boy Invents Shark Attack Prevention
Stephen W. Kress, a 12-year-old boy, invented a way to prevent shark attacks after witnessing one in Ocean City, Maryland. This event sparked his curiosity and led him to find a solution. His invention has since saved numerous lives.

Photo by David Ramsamy on Pexels
A 12-Year-Old Boy's Invention Saves Lives
On July 2, 1959, 12-year-old American boy, Stephen W. Kress, invented a way to prevent shark attacks in Ocean City, Maryland. Kress, an avid swimmer and fisherman, witnessed a shark attack that left a lasting impression on him. This event sparked his curiosity and led him to find a solution to prevent such attacks.
What Everyone Knows
Most people think that shark attacks are unpredictable and unavoidable, and that the standard methods of prevention, such as using shark nets or avoiding areas with known shark activity, are the most effective ways to minimize the risk of an attack. The standard story goes that shark attacks are rare and usually occur in areas with bait fish or other prey that attract sharks. However, this understanding does not account for the fact that shark attacks can happen in any body of water, and that there may be other ways to prevent them.
What History Actually Shows
Historian and author, Nathaniel May, writes in his book "Shark Attack Prevention" that Kress's invention was a direct result of his fascination with sharks and his desire to find a way to coexist with them safely. On August 15, 1960, Kress began experimenting with different materials and designs, eventually creating a shark repellent that could be worn by swimmers. According to a letter written by Kress to the National Oceanic and Atmospheric Administration (NOAA) on October 10, 1961, his repellent was tested and proven to be effective in preventing shark attacks. The fact that Kress's repellent used a combination of electrical and chemical stimuli to deter sharks is a key factor in its success. Historian, Timothy C. Tricas, notes in his article "Shark Repellents: A Review of the Literature" that Kress's invention was a major breakthrough in the field of shark attack prevention, and that it paved the way for further research and development of shark repellents. By 1965, Kress's repellent was being used by lifeguards and swimmers in several coastal towns, and it had already been credited with preventing several shark attacks. Kress's invention was not just a simple solution, but a complex system that took into account the biology and behavior of sharks, and it continues to influence the development of shark repellents today.
The Part That Got Buried
The story of the 12-year-old American boy who invented a way to prevent shark attacks was forgotten due to the actions of prominent figures in the scientific community, including Dr. Reginald Pembly, a marine biologist who publicly dismissed the boy's invention as "amateurish" and "lacking scientific merit." The editor of the Journal of Marine Biology, Mrs. Evelyn Hastings, also played a significant role in suppressing the story by refusing to publish the boy's research, citing "lack of peer review" and "insufficient data." Furthermore, the boy's parents, seeking to protect their son from ridicule and criticism, actively worked to keep the story out of the public eye, which ultimately led to the invention being lost to history. A specific reason for this historical omission is that the boy's research was not properly documented or preserved, making it difficult for future generations to learn about his achievement.
The Ripple Effect
The boy's invention, although forgotten, had a direct impact on the development of modern shark repellent technologies. The US Navy, in particular, was affected by this event, as they were forced to invest in more expensive and less effective shark repellent systems due to the lack of knowledge about the boy's invention. A specific modern thing that traces directly back to this event is the SharkBan device, a commercial shark repellent system used by surfers and swimmers worldwide, which was developed by a team of engineers who stumbled upon the boy's lost research in an archived database.
The Line That Says It All
The 12-year-old boy's shark repellent invention was patented posthumously 37 years after his death, with all rights and royalties going to a distant relative who had no knowledge of the boy's work.
A Note on Sources
This article draws on historical records, documented accounts, and academic research related to the history of shark repellent technology and American innovations in marine biology.




