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aviation

Engine strip-downs establish safe volcanic ash levels

Technology

Engine strip-downs establish safe volcanic ash levels

After saying that no level of volcanic ash was safe to fly through, UK authorities have now decreed some parts of the cloud are navigable

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Can we fly safely through volcanic ash?

Earth

Can we fly safely through volcanic ash?

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Solar-powered night-flying plane makes its first 'flea hop'

Technology

Solar-powered night-flying plane makes its first 'flea hop'

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Don't pack your parachute: Totally free fall

Technology

Don't pack your parachute: Totally free fall

Features

Stealthy wind turbines aim to disappear from radar screens

Earth

Stealthy wind turbines aim to disappear from radar screens

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Albatross inspires ocean-skimming drones

Life

Albatross inspires ocean-skimming drones

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Better world: Offset your emissions

Earth

Better world: Offset your emissions

Features

Fly-by-wireless set for take-off

Technology

Fly-by-wireless set for take-off

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Why large carbon-fibre planes are still grounded

Technology

Why large carbon-fibre planes are still grounded

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How to turn seawater into jet fuel

Earth

How to turn seawater into jet fuel

The US navy has shown it can take carbon dioxide and hydrogen from the ocean and turn it into fuel – but this is far from free energy

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Technology

Hover no bother for flapping 'nano' aircraft

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Technology

Black boxes to get back-up battery

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Technology

Metal comes to the rescue of revolutionary plane

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Technology

Taxibot could save airlines billions

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