Art meets science: Aesthetics, politics and metaphysics Good sci-art collaborations help us understand science at a deeper level, but many go astray, argues artist and critic Jonathon KeatsBooks & Arts
EarthGreen machine: Generating more light than heat New, cheaper thermoelectric devices that convert heat into electricity could reduce our consumption of fossil fuels and greenhouse gas emissions ¿ìè¶ÌÊÓÆµ