Sorry, it's completely OT, but learning more about the Earth and the Space is always beautiful! <3 ====== "Earth Observation from Space: the Optical View" Discover how optical Earth observation data is gathered and used in this free online course from the European Space Agency (ESA). Free Online Course – starts 12 Sep https://www.futurelearn.com/courses/optical-earth-observation sea sea -- "I disapprove of what you say, but I will defend to the death your right to say it."