Nathan Myhrvold and team's latest inventions—as brilliant as they are bold—remind us that the world needs wild creativity to tackle big problems like malaria. And just as that idea sinks in, he rolls out a live demo of a new, mosquito-zapping gizmo you have to see to believe. 

Kids in developing countries need vaccines, but will the world's wealthy financial markets really help to deliver them? A deal brokered by former British Prime Minister Gordon Brown has so far raised nearly $2 billion for just that purpose. It's called the International Finance Facility for Immunisation (IFFIm), and author Aminatta Forna wants to know how it works.

The Advance Market Commitment scheme, formulated by the GAVI Alliance, aims to provide more vaccines to the developing world by fixing their price over a 10-year period. Is it going to deliver, what will be the result, and how did global health institutions and the big pharmaceutical companies manage to agree on such a deal? 

Cervical cancer kills more than half a million women worldwide every year, and is the leading cause of female cancer deaths in the developing world. New low-tech screening programs have begun to reduce cancer deaths but campaigners like Sarah Nyombi, a politician in Uganda, want to see more.