Natural Sciences in Eastern Europe and Balkans
Skopje, Universities, Natural Sciences
Prague, Universities, Chemistry, Technology
Warszawa, Universities, Physics
the Russian Federation, Aerospace Energia is the prime pontractor for manned space stations, manned spacecraft and space systems.
the Russian Federation, Military, Aviation, Aerospace, News Aviation and aerospace news and technical information. Russian military aviation, anti-aircraft artillery, surface-to-air missiles. US and European military aviation. Russian tanks, APCs, mobile radars.
Postojna, Sightseeing, Speleology, Castles Postojna Caves: 20km network of shafts, galleries and chambers boasting a fantastic treasure of stalactites and stalagmites. The Caves have a 180-year tradition of guided tours and an electric train taking visitors into the illuminated interior.