Patrick Blackett spends the 1924–1925 academic year under the physicist James Franck on atomic spectra at University of Göttingen.

During the World War II Patrick Blackett covers various roles as scientific advisor for military research. Among them Blackett serves on the MAUD Committee (1940-1941) and in August 1940 he becomes scientific advisor to the Lieutenant General Sir Frederick Pile, beginning the field of study known as operational research (OR).

Blackett optimises a spring action linking the expansion of the cloud chamber to a camera shutter so that a photo is taken just as the expansion is concluded. In the summer of 1924, Blackett obtains eight tracks showing the capture of an incident alpha particle by a nitrogen nucleus, creating an isotope of oxygen, and the path of a hydrogen ion (proton) ejected from the recoiling oxygen nucleus. His photographs are rapidly widely known. He is only twenty-seven.

Patrick Blackett becomes Professor of physics at University of London, where he continues his cosmic ray research work and where he collects a cosmopolitan school of research workers.

Patrick Blackett spends a summer in Berlin where he meets Bruno Rossi. Rossi is researching ways to use the Geiger-Müller counter to detect charged particles in cosmic radiation and he suggests that Giuseppe P. S. Occhialini joins Blackett in Cambridge to learn cloud-chamber techniques.

Patrick Blackett receives the Nobel Prize in Physics "for his development of the Wilson cloud chamber method, and his discoveries therewith in the fields of nuclear physics and cosmic radiation".

Patrick Blackett returns to the Cavendish Laboratory. In 1932, with Giuseppe P. S. Occhialini, Blackett devises a system of geiger counters which only takes photographs when a cosmic ray particle traverses the chamber and uses it to show that positive electrons in cosmic ray showers are caused by pair production.

Patrick Blackett is appointed Professor and Head of the physics department of the Imperial College of Science and Technology in London. He retires in July 1963 .

Patrick Blackett earns his undergraduate degree at Magdalene College.

Patrick Blackett becomes Pro-Rector at Imperial College London.

The officers whose training has been interrupted by the war are sent by the Admiralty to Cambridge University for a course of general duties. There Blackett meets Kingsley Martin and Geoffrey Webb and he is fascinated by the intellectual conversations. He is also impressed by the Cavendish Laboratory and decides to leave the Navy to study mathematics and physics at Cambridge.

Patrick Blackett becomes a research postgraduate student under Ernest Rutherford at Cavendish Laboratory. Rutherford asks Blackett to perfect an automatic cloud chamber for the study of alpha particles bombarding targets. In a common cloud chamber when the volume suddenly expands, the temperature decreases and water droplets form on charged particles in the chamber.

Patrick Blackett dies in London.

Patrick Blackett is born in Kensington, London, the son of Arthur Stuart Blackett, a stockbroker, and his wife Caroline Maynard.

Blackett and Occhialini confirm Anderson's discovery of the positive electron, but also prove the existence of "showers" of positive and negative electrons, both in almost equal numbers. They think that gamma rays can transform into positrons and electrons, plus a certain amount of kinetic energy - a phenomenon called pair production. A collision between a positron and an electron in which both are transformed into gamma radiation, so-called annihilation radiation - is also proved provisionally.

Blackett serves as a midshipman during World War I. He goes to the Cape Verde Islands on HMS Carnarvon and attends at the Battle of the Falkland Islands. He is then transferred to HMS Barham and sees much action at the Battle of Jutland. He is concerned by the poor quality of gunnery in the force and while on HMS Barham, he co-invents a gunnery device. In October 1916, he becomes a sub-lieutenant. In July 1917, he is posted to HMS Sturgeon in the Harwich Force. He becomes Lieutenant in May 1918.

Patrick Blackett becomes Langworthy Professor of physics at University of Manchester succeeding William Lawrence Bragg. He invents the astatic magnetometer in 1947, a device for measuring the very small amount of magnetic fields associated with magnetic minerals, which provides evidence to support continental drift theory.

Patrick Blackett marries Costanza Bayon, a student of modern languages at Newnham College.