Sarah: You may be aware of Bridge 8’s innovative Utility Fog workshop, featuring a mass of nanoscale robotic ‘foglets’, which float through space. A group of French scientists has come up with an interesting invention which is remininscent of foglets. The newly developed probes, which are approximately 2cm in diameter, are particularly unique in that they float freely in water and wirelessly collect and transmit information such as temperature back to a laboratory setting. Hence they can be used to track the paths of tiny heat packets which travel through fluids, and should one day allow accurate monitoring of oceanographic and astmospheric currents. Ooh la la, je t’aime French science.