The International Space Station marked its 10th anniversary of continuous human occupation on Nov. 2, 2010. Since Expedition 1, which launched Oct. 31, 2000, and docked Nov. 2, the space station has been visited by 204 individuals.
The templates supplied with this activity allows you to build and experiment with all of these basic wing/tail/canard configurations. Eight different plastic foam “X-gliders” can be built using the template, but the total number of variations is only limited by the imagination of the “designer”
A roundel in heraldry is a disc; the term is also commonly used to refer to a type of national insignia used on military aircraft, generally circular in shape and usually comprising concentric rings of different colours.