You're about to listen to a BBC podcast and maybe it's when I had a hand in.

I'm Tammy Walker and I produce podcasts for the BBC.

My role is to give new and diverse creators a voice with the opportunity to build a career.

That's the thing I love about podcasts.

You start with just a good idea.

But then you have the space to see where it goes.

And doing that at the BBC means we can really run with the best stories

while developing the most unique audio talent.

So if you like what you hear, why not check out the huge range of podcast we've got on BBC

Sounds.

In a laboratory in 1950s,

a chemist stands at an old wooden bench.

Slowly, over hours, she adds a mixture of methanol and chloroform to a glass column.

Inside is a carefully prepared solution containing the finely crushed root of the plant

Revulfia vomitor. And coming from the bottom the steady

drip of her hard-earned prize, it is a laborious process and when she's done

she won't be able to keep her freshly isolated chemicals.

She just doesn't have the money or resources to analyze them here.

But the tireless and uncompromising chemist knows that it will pay off with a new discovery.

I'm Ella Hubbard and I'm Julia Ravi.

We're both producers for BBC audio science, but before that we were scientists and these

are the stories we wish we'd known.

...