New technologies abound these days, but they can take some time to build by conventional assembly methods. California-based EoPlex Technologies reckon we ahould ‘think ink’. They are using cutting edge 3D printing technologies to build devices like fuel cells in much less than the two weeks it takes usually – they predict a three minute assembly time once they get a full scale production line running, but at the moment they can prototype in a day.

Tony Blair, repeating whatever Bush says in time-honoured fashion, is pushing for a ‘nuclear renaissance’ in the UK to solve our coming energy crisis. Thing is, it may not be all plain sailing for our Tony, as the nuclear industry has a desperate shortage of incoming workers at all levels, largely due to a lack of interest in training for the roles. Even the £10,000 sign-up bonuses aren’t helping.

Solar power is a great idea; it uses a resource that we won’t ever run out of (for a few million years at least). But current manifestations are very inefficient. Brian Wang rounds up some news about the potential of quantum dots to revolutionise solar cells, giving them an efficiency of 65%. Maybe he should contact that Australian grad student.

Mike Kuniavsky’s instructions for controlling your Mac wizard-style (that is, with gestures) makes for great reading. The hack is fun, but the designer’s justification is right on. (To paraphrase: tell your users a lie they can believe.)

It could get a lot cheaper to enrich uranium, provided you have the right equipment. That’s a special laser sieve and electrical trap, for the impatient.