The prospect of a revolution in air travel has been raised by Nasa's successful test of a 5,000mph plane. But are we likely to see similar advances in other forms of transport? The way we get about has a profound impact on the way we live - affecting where we set up home, work and holiday. Nasa scientists say their experimental X-43A jet has the potential to make the world a much smaller place. It has already led to predictions that passenger planes will one day fly from the UK to Australia in two hours. But apart from the huge cost implications, governments are increasingly sensitive to environmental concerns and may resist the use of technology that could harm the planet. So, dusting off the crystal ball, what changes might come in the way we get around? What big ideas are out there, and do they have any chance of seeing the light of day? Developments in microlight technology will make it possible for everyone to own what are, in effect, flying cars. They will have closed cabins, heating, stereos and room for two people.You will take off from a field or runway near your home and fly to towns and cities across the UK, or mainland Europe. After landing, you will detach the fixed wing from your vehicle and continue your journey by road - right up to your final destination - just as if you were travelling by car. Fuel efficient engines and the advantage of being able to travel as the crow flies - rather than by winding roads - will keep costs and the environmental impact down.
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