Fishing for chips

Traditional methods of marking larger farm animals rely on branding with hot irons or on ear-tagging. Dogs and cats are instead identified by the implant of a microchip transponder. With very few exceptions, it is now mandatory ...

Signal processing: Look-up tables to shoulder the processing load

Advanced mathematical algorithms are essential for processing electronic signals within computers and embedded processors. Scientists and engineers are constantly refining and redesigning their algorithms to obtain higher ...

BBC pulls plug on world's oldest teletext service

BBC Ceefax, the world's first teletext service, ceased transmission on Tuesday after delivering 38 years of up-to-the-minute news and sports updates to the British public.

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