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How did scientists create COVID-19 vaccines so quickly? Why can't we control the beat of our hearts like we can control the breath in our lungs? How do the rings of a tree tell us its age?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith
By triplej, triple j4.8
139139 ratings
How did scientists create COVID-19 vaccines so quickly? Why can't we control the beat of our hearts like we can control the breath in our lungs? How do the rings of a tree tell us its age?
Dr Karl answers these questions and more, on triple j mornings with Lucy Smith

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