Mysteries Of Our World That Science Finally Solved

       Scientists have been bewilder for years by the mysteries of our world, from giant movements under the ocean to how the oceans themselves originated. Today, we have the answers to some of these questions.

1. How Giraffes Stay Upright On Their Bony Legs

              Giraffes weight about 1,000 kilograms (2,200 lb) but have incredibly thin leg bones for their size. Yet they don't collapse or acquire to get hurt. To find out why, researchers from the some Veterinary College tested giraffe limbs donated from European Union zoos.

            The limbs were from animals that had died of natural  causes in captivity or had been euthanized. The researchers placed the limb in a rigid frame then used masses of up to 250 kilograms (550 lb) to simulate  a giraffe's weight on its legs. Each limb stayed stable and upright without any problem. In fact, the giraffe  legs would have been able to successfully authorize even greater forces.

             The reason is a suspensory  ligament (fibrous tissue that holds bones together) that resides in a groove running the length of leg bones in a giraffe. These leg bones are similar to the metatarsal bone in a human foot and the metacarpal bone in a human hand. But the giraffe, these bones are much longer. It provides support only because it's elastic tissue , not muscle. This bone marrow also protects the giraffe's foot joints and prevents the collapse of its feet.

2. How Underwater Waves Are Produced

               Underwater waves, also called internal surface, hidden from our view. They raise the ocean's surface water by inches so that, which makes them difficult to detect except by satellite. The largest internal waves appear in the Luzon Strait, between Taiwan and Philippines. They can tower 170  meters (560 ft) and move at only a few centimeters per second across great distances.

                Scientists have long wanted to solve the mystery of how the big internal waves in the
Luzon Strait are generated. They're hard to see in the ocean, although instruments can detect the difference in density between an internal waves and its surrounding water. 

              

                Nevertheless, scientists decided to start their tests in a 15-meter (50 ft) wave tank. The internal waves were generated by pushing cold bottom water over two ridges on the simulated sea-floor.

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