Dr.Wood?s robots are modelled on a hoverfly called Eristalis. They have a long way to go before they can mimic the precision of such a creature?s flight. They can, nevertheless, hover. They can also carry out simple movements. These include turning by flapping one wing harder than the other.
These skilful movements are possible because of the flightcontrol system Dr.Wood has designed. Like jet fighters, flying insects are naturally unstable. And so are Dr.Wood?s robots. Insects have nervous systems to deal with this. Fighters have computers. Dr.Wood?s flies are similarly computercontrolled — and this, for the moment, is where the illusion (幻觉,错觉) breaks down, because the computer is on a desktop and is connected to the robot by a thin copper wire.
That could be fixed with a suitable chip.
But the wire also carries electric power: 19 milliwatts, which is equal to the power consumed by a flying insect of the same size. Batteries light enough to fly with do exist. But they would keep the robot going for only a few minutes.
1.Why did Dr.Wood and his colleague invent a new form of manufacturing called SCM?
A.Because they could model robots on a hoverfly called Eristalis.
B.Because they were only interested in the basic science behind flying insects.
C.Because they found it impossible to build an artificial version of intelligent flying insects.
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