Quantum computing will create machines unbelievably faster and cleverer than anything ever made, using weird and wonderful physics. The latest advances mean we're that much closer moving beyond semiconductors.
While the global market for ever more sophisticated tech gadgets grows, the metals and minerals that make them go are controlled by a handful of countries.
Greenpeace's Guide to Greener Electronics produces a new series of incendiary videos to alert people about how the big video-game system makers need to do more to rid their consoles of toxic chemicals.
