IF ONLY it had been this easy for Marconi. A self-organising electronic circuit has stunned engineers by turning itself into a radio receiver.
This accidental reinvention of the radio followed an experiment to see if an automated design process, that uses an evolutionary computer program, could be used to “breed” an electronic circuit called an oscillator. An oscillator produces a repetitive electronic signal, usually in the form of a sine wave.
Paul Layzell and Jon Bird at the University of Sussex in Brighton applied the program to a simple arrangement of transistors and found that an oscillating output did indeed…
