The amount of rotation is called the angle of rotation and is measured in degrees. By convention a rotation counter-clockwise is a positive angle, and clockwise is considered a negative angle. Rays from the point of rotation to any vertex all turn through the same angle as the image is rotated.
Bird With Largest Wingspan â Wandering Albatross. The âWandering Albatrossâ has been declared as the bird with largest wingspan among all the living birds. Its wingspan on average ranges from 8.2 to 11.5 feet (2.51 to 3.50 meter). Larger wingspans of about 13.8 and 17 feet have been reported but they were not verified. The largest wingspan bird Wandering Albatross ever recorded was about 11 feet and 11 inches.
Scientists have identified the fossils of what could be the largest flying bird ever found. With an estimated 20- to 24-foot wingspan, the extinct P. sandersi was twice the size of today's biggest flying bird, the royal albatross, according to the National Evolutionary Synthesis Center in North Carolina. Researchers believe the P. sandersi lived about 25 million to 28 million years ago.