These green and black preserved eggs don’t really look like food, but the chemistry of fermentation turns pidan, or century eggs, into a Chinese comfort food. In this week’s Reactions episode, we’re talking about the science of these unusual treats.
We called a few virologists to find out.
The COVID-19 pandemic has scientists considering a few less-conventional options.
How much could cloth face masks help stop the spread of SARS-CoV-2?
