Pancreatic cancer's high death rate is partly blamed on the difficulty of early detection. Teenage scientist Jack Andraka has come up with a cheap and simple way to test for it.
Many parts of the world are without internet coverage. Now search giant Google plans to bring web connections via a fleet of high-flying balloons.
Imagine a school where playing video games is encouraged during classes and may even replace exams. A new educational programme uses SimCity to test children on vital problem-solving skills.