In addition to being a designer, Martijn Koomen is also captain of a submarine, and he flies hang-gliders, and in this capacity he is very interested in meteorology. His Weather, Feathers and Frost visualizes temperature, atmospheric pressure and wind. Inside his ‘weather glasses’, downy feathers float on the air currents, and a drop in temperature will cause crystals to form. Koomen has used two of these weather glasses as construction elements for weather stations that visualise temperature and wind. They provide information on the immediate weather situation, thus forming a link between two environments: making those indoors aware of the weather outside.