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Tech

Making machines from genes

A novel machine made from DNA also uses DNA as its fuel.

Tech

Coddled crystal slams door on light

A better fabrication process yields such a high-quality optical material that microchips using light, rather than electrons, may be close to reality.

Humans

Russia’s nuclear-safety issues spread

A leading Russian environmentalist, Aleksandr Nikitin, says Russia's problems with nuclear-waste management should concern people beyond that country's borders.

Humans

Cutting edge chemistry rushes online

A new online server offers a place for communicating chemistry research to other scientists quickly and without peer review.