A bomb whose creation would tip the scales of global power.

A nuclear physicist who sought to redress the balance.

The bomb, a podcast from the BBC World Service.

These are two available now.

So out here we have a 10-bit capacity.

So it's usually a very busy unit as you've seen right now.

This is the intensive care unit at University Teaching Hospital in Zambia's Capital City, Lusaka.

Here, head nurse, Shelby Chowala and her team care for the hospital's sickest patients.

We get a lot of head injury patients, traumatic brain injury.

Mostly due to traffic accidents, we have patients with their vet's key to us doses.

We have patients with severe malaria.

Then, he came in with a hippo bike.

We use a tag by a hippo.

These are complex cases.

And this small team does the best they can with limited resources.

Mostly it's the work of a lot because ideally in any ICU setting, the nurse patient's ratio should be one-on-one.

Nessies tend to have two, sometimes even three patients at a time.

And usually patients in the ICU are very involved.

So what usually happens is we'll prioritize what are the most important things that you can do for that time that you're on shift.

I am Dr. Priska Sakalamukonka, Head of Education at the Lusaka College of Nursing and Mid-Refray.

And you are listening to Nessing matters on the BBC World Service.

They have been decades of investment in Ness Education here in Zambia.

...