Summers are filled with sunny days to enjoy the outdoors, but you need to bring along the proper sun protection to prevent skin damage. The latest edition of Periodic Graphics in Chemical & Engineering News looks at the chemistry the sun triggers in our skin. View the full graphic on the C&EN site.
At the time of writing, there have been almost a quarter of a million confirmed cases of COVID-19 worldwide. The number of deaths is approaching 10,000. Across the world, countries are scrambling to increase their testing capacity for the virus — how are these tests carried out and how do they work?
Rosalind Franklin was born on this day in 1920. Her contributions to the discovery of the structure of DNA were key; she took photos of DNA’s structure using X-ray crystallography, and it was these photos that informed the work of Watson and Crick’s model of DNA’s structure. Sadly her contributions were not fully recognised until after her death, and she did not share in the award of the Nobel Prize for the discovery of DNA’s structure as the prize is not awarded posthumously.
