A new work ethic Philip Ball explains how engines could be made more efficient by making it easier for heat to flow from hot to cold. Henry Gee investigates. Turning down tumours David Adam reports on new molecules that could keep some cancers in check by starving tumour cells of blood. Your handshake may reveal more about your personality than you realise. Hitting the right nerve Philip Ball explains how antibodies tailored to act like biological catalysts may offer some protection against chemical weapons.
Researchers restore vision in a mouse model of childhood blindness.