Haygrove Science retuiteado

On this day in 1921 insulin was successfully isolated. I love learning how medical advances are made. You can read more here if you’re interested...diabetes.co.uk/insulin/histor…
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Haygrove Science
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@HaygroveScience
Haygrove School Science Department. Helpful tweets to aid your revision! Edexcel. Bridgwater, Somerset, UK





What does a mask do? Blocks respiratory droplets coming from your mouth and throat. Two simple demos: First, I sneezed, sang, talked & coughed toward an agar culture plate with or without a mask. Bacteria colonies show where droplets landed. A mask blocks virtually all of them.


















