The Royal Meteorological Institute of Belgium (IRM) is celebrating its hundredth anniversary this summer. On this occasion, the Institute has partnered with bpost to present the first Belgian and even world novelty: four thermosensitive stamps depicting the four seasons of the year.The IRM is celebrating its 100th anniversary on July 31. To mark the event, the Institute cooperated with bpost to issue special stamps printed with a temperature responsive ink.
\”This technological innovation is the first Belgian and certainly the world first\”, exclaims the spokesman for bpost, Fred Lens. The series consists of five stamps: a stamp depicting the building of the IRM and four heat-sensitive stamps, each representing a tree whose leaf forms the map of Belgium. The foliage is green but when the temperature exceeds 25°, for example if one puts a finger on the stamp, the green layer disappears showing the tree in one of the four seasons (sun, rain, snow, clouds).
Many activities are planned to mark this special anniversary. Open days in the Royal Observatory and the Institute for Space Aeronomy with guided tours in the climatic park, in the office of virtual time where forecasters would explain their job, science experiments, 3D animations, etc are planned. An exhibition is also to be held at the Planetarium and the Mediacity in Liege. Lectures are to be held in late September in Brussels.