Claudia J Alexander was a geophysicist and planetary scientist who worked for the United States Geological Survey (USGS) and NASA's Jet Propulsion Laboratory where she oversaw Galileo's plunge into Jupiter. Read & subscribe:
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Leone Norwood Farrell invented the Toronto Method for large-scale vaccine production, making childhood immunisation programmes more affordable and facilitating the mass production of Jonas Salk's polio vaccine in the 1950s. https://t.co/LS68ilOVeO
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