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Virus 103

This COVID-19 pandemic is the first one for 102 years. In 1918-1920 we had an influenza pandemic, which we now refer to as the Spanish Flu. Back then we didn’t know about a thing called a ‘virus’, so in 1918 no-one knew what was killing people. But we did know about germs.

Seashell Ocean Sound

When you pick up a seashell and hold it to your ear, why can you hear the sound of the ocean?