Bots Learn From Bacteria

Sometimes it’s worth simply facing facts and admitting that nature often has the most elegant solutions to engineering problems, especially at microscopic scales. Australian scientist James Friend certainly thinks so; he’s trying to design tiny robots that can travel through the human body,Fantastic Vovage-style, which is why he has cribbed the idea for a micromotor from something that does the job very effectively already – the E. coli bacterium.

Nuclear: The Next Generation

New nuclear research in Europe, looking at the so-called ‘4th generation’ reactor designs, seems to promise a ‘closed’ fuel cycle that recycles almost all of the heavy isotopes produced by the initial fission of uranium, leading to a more sustainable form of nuclear power station. The only problem is that the technology to actually build these reactors is still decades in the future, which is why it is heartening to learn that India is looking into using thorium reactors to solve its energy needs.