BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Why can't an ostrich fly? Detailed answer Directory / Big encyclopedia. Questions for quiz and self-education Did you know? Why can't an ostrich fly? In the air, the force of gravity is felt stronger than on the ground. This is because the air does not support the weight very well. Only small birds can fly by flapping their wings, because this requires highly developed pectoral muscles. Big birds don't have that many muscles. Therefore, giant birds cannot fly at all. This includes rhea ostriches from South America, emus from Australia, and a few others. They are too heavy to fly. There is not a single giant flying bird. Is the ostrich a giant? Absolutely yes! It is the largest living bird. An adult ostrich reaches 2 meters, and sometimes 2,5 meters in height. It weighs from 70 to 135 kg! But birds that can't fly make up for it with incredible speed when running. It is believed that the ostrich runs faster than all birds. He has long, strong, thick legs, and he can run through the desert faster than an Arabian horse. Some people claim to have seen an ostrich run at 80 km/h. But biologists believe that the fastest ostriches can run at speeds of 45 to 60 km/h. And it's really very fast. The stride length of an ostrich when running can reach 8,5 m. Author: Likum A. Random interesting fact from the Great Encyclopedia: What photographer kept filming a volcanic eruption knowing he was going to die? In 1980, there was a powerful eruption of the St. Helens volcano, located in the northwestern United States. Photographer Robert Landsburg, knowing in advance about the approaching activation of the volcano, visited the area around for several weeks to capture the phases of its change. On the morning of May 18, when the eruption itself began, he was several kilometers from the summit and realized from the rapidly approaching cloud of smoke that he would not have time to escape. Without any panic, Landsburg continued to take pictures, then packed the camera into a backpack and covered it with his body, which was found under a layer of ash 17 days later. Nothing happened to the camera, and the shots taken helped geologists to compile a complete documentary description of the eruption.
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