Algodoo

The grey spikey ball is a reflector node, designed to be detected by radar. the assorted blue, pink, and greenish yellow blocks represent different angles that might be on an aircraft. the right angle is the rarest, because it directly reflects the radar and can reveal the position of an aircraft to enemy radar. the obtuse and acute angles are more common because the radar is reflected away from the source, which avoids detectance. dont zoom out or move the camera. you will see the laser reflect back toward the circle.