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Invaluable for both beginners and advanced observers, Philip's Planisphere (Latitude 51.5 North) is a practical hour-by-hour tracker of the stars and constellat

Invaluable for both beginners and advanced observers, Philip's Planisphere (Latitude 35 South) is an essential travel accessory for astronomy enthusiasts visiti

Cardboard star wheel chart with moveable dial displays the positions of the stars at any time of the day and on any day of the year; shows only the brightest st

In a crucial shift within posthumanistic media studies, Bernhard Siegert dissolves the concept of media into a network of operations that reproduce, displace, p