When some sort of impact occurs, it can alter the structure of an object. Take a snowball, for example: we can compact particles of snow into a solid object, but if we hurl it at someone the impact will rupture it back into thousands of individual snowflakes.
‘Like penicillin for psychiatric illness’: this is how science will remember the discovery of chlorpromazine: the first psychiatric drug developed in 1950.
False coloured scanning electron micrograph of HIV-1 budding (green) from cultured lymphocyte. Credit: The Centres for Disease Control and Prevention’s Public Health Image Library
It was the early 1980s, and the world was facing one of the most deadly pandemics in modern history. Large numbers of people across the globe had begun to die from rare types of pneumonia, cancer, and infections of the lymph nodes. The symptoms pointed towards some sort of immune disease: an unknown affliction that had never been seen before.