1. Comenius project cartoon, dictionary, correspondence and suneclipse 2015

2. Cartoon LINK Christian Doppler born in Salzburg in 1803 Austrian mathematician and physicist Doppler effect: the observed frequency of a wave depends on the relative speed of the source and the observer.

3. Cartoon - Christian Doppler The Doppler effect is also used for radar Christian Doppler explains (in the cartoon), where the radar is used, e.g. for the range, altitude, direction and speed of objects and to detect aircraft, ships, and to measure the flow of blood He shows the other scientists the highest mountain of Austria, the Großglockner (3,798 m) At the end they are sailing to Bulgaria

4. Dictionary It is a dictionary for astronomical words, e.g. black hole There are 6 columns for English, Bulgarian, German, Lithuanian, Portuguese and Turkish Dictionary

5. Correspondence with pupils of Portugal Topics: cooperation: work together on a presentation solar eclipse