Cecil Powell was a British physicist known for his pioneering work in particle physics. He was awarded the Nobel Prize in Physics in 1950 for his invention of the photographic emulsion technique, which allowed scientists to detect and study subatomic particles. This method significantly advanced the understanding of cosmic rays and contributed to the discovery of new particles. Born on December 5, 1903, in Tonbridge, England, Powell studied at University College London. His research laid the groundwork for future developments in particle detection and contributed to the field of nuclear physics. Powell's legacy continues to influence modern physics and experimental techniques.