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Ringing the changes - The hard slog of making steroids should soon be a distant memory

Distilled wisdom - Forget all those dreadful hours trying to work out which carbon double bond does what. David Bradley discovers the supersmart software that is freeing chemists to be more creative than ever before

Self-destructive prisoner trapped by cold

Flashy gold rings

Science : Home-grown sea shells reveal nature's trick

Science : Miniature designers take up weaving

Technology

Technology : Smart window spells curtains for blinds

Science : Recipe for jelly promises new catalysts

Review : A plague on the human race

Science : Catalyst banishes deadly mirror molecules

Science : Buckyball `transistor' raises nanocomputing hopes

Science : Molecular impostor uncoils DNA theory