Skip to content

Listening in on the Cretaceous

Chalk bubbles smThis morning I am listening to the bubbles produced when chalk is dissolved in vinegar (malt vinegar, Sainsburys). Yes, you may well ask! It is the sound of carbon dioxide being released back into the atmosphere, reversing a reaction that took place millions of years ago when small marine plankton extracted CO2 to make their ‘shells’, which subsequently became chalk. So, you might say that I am listening in on the Cretaceous (66–145 million years ago).

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

On twitter at the moment:

%d bloggers like this: