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Technology

Pulsing gels could power tiny devices

A gel that pulses regularly when doused with chemicals has been modelled in detail for the first time – it may one day power small mechanical components

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Solar sailing – poised to take off

Earth

Solar sailing – poised to take off

Features

Is Venezuela's pipeline the highway to eco-hell?

Earth

Is Venezuela's pipeline the highway to eco-hell?

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Biofuel made from power plant CO<SUB>2</SUB>

Earth

Biofuel made from power plant CO2

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Technology

AA battery charges through USB port

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Small-scale renewable power – low-wattage thinking?

Earth

Small-scale renewable power – low-wattage thinking?

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Plankton could power robotic submarines

Technology

Plankton could power robotic submarines

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Fuels gold: Big risks of the biofuel revolution

Earth

Fuels gold: Big risks of the biofuel revolution

Features

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Technology

GM bacteria churn out 'microdiesel' fuel

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Earth

Solar alchemy turns fumes back into fuels

It is the biggest contributor to climate change, and now chemists are hoping to convert carbon dioxide into a useful fuel, with some help from the Sun

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Technology

Nuclear power: Return of the atom

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Technology

New type of hydrogen fuel cell powers up

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Earth

Introduction: Energy and Fuels

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Technology

Zapped crude oil flows faster through pipes

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