By Stephanie Jones The creature crouches low when walking in forests. Its senses are heightened by the thrill of a hunt. It stalks its pre...
The creature crouches low when walking in forests. Its senses are heightened by the thrill of a hunt. It stalks its prey from the ground up to tree branches and unto the jungle canopy. Branches are leap frogged as the hunter pursues the prey from atop. The grip loosens and hunter falls down with a great thud and death follows. If the story were converted to the present it would not happen as emergency parachute will be deployed.
Tool using was an important milestone in the evolution of civilizations. Other creatures also used tools but the routine use and application that took place separated hominids from the apes. Early tools were crafted from materials that would rot such as sticks and animal bones. Stones were chipped to create sharp edges. Examples of this from as far back as two point five million years ago can be seen in museums.
Sharpened stone adzes have been discovered around bone remains of what used to be hunted animals. This is proof that hominids intentionally cut rock edges to make shear through soft tissue. At a later date, handles were attached to the adzes which now became hand axes. The added handle provided more torque and force when wielded with extended arms.
Human beings are adventurers and it finds ways to satisfy its curiosity. When it first looked up at the skies envied the birds in flight. It dreamed of being able to fly and glide into the air as effortlessly as the avian. Jumping from high cliffs and into the sea must have given it a thrill almost like that of flying. The problem was that it could not be sustained.
Efforts were made to copy bird motion in full flight. Observations were made on how the legs, the wings, and the tail behaved while flying. But all this came to naught as the force needed to escape the gravitational pull of the earth needed to have a more powerful source and this came with the creation of internally fired engines.
Contraptions that were heavier than air could not really fly, but with technological innovations, the rudimentary design married to an engine did manage to fly during the first decade of the twentieth century. Aerodynamics has come to the fore that made studies about air flows and the effects it had on surfaces. The wings of an airplane are designed to maximize the air passage to produce lift.
Continuous technological breakthroughs have made possible the production of the modern aircraft, both the fixed wing and the rotary winged. Composite materials are now used to form parts of an airplane. The most common material though is aluminum. Airplanes have redundant systems so much so that the risk of crashes is very minimal. But when it happens a safety gadget has to be on hand.
The military was probably the first to think of an item that would slow down a descending object. Designs were submitted for testing and the right fabric was found that became the hood with strings attached to it and fixed on a man. Chutes were then innovated and improve to serve as pilot accessory in times of emergency. With it in hand, the operator and passengers could now bail out safely.
Sport activities that originate from the sky are very dangerous. Skydiving and cliff jumping is very popular among new athletes. Human formations jumped off huge airplane to do difficult maneuvers forming hand to hand links that baffle the imagination. These feats could not have been done without the aid a safety device that is the parachute.
Tool using was an important milestone in the evolution of civilizations. Other creatures also used tools but the routine use and application that took place separated hominids from the apes. Early tools were crafted from materials that would rot such as sticks and animal bones. Stones were chipped to create sharp edges. Examples of this from as far back as two point five million years ago can be seen in museums.
Sharpened stone adzes have been discovered around bone remains of what used to be hunted animals. This is proof that hominids intentionally cut rock edges to make shear through soft tissue. At a later date, handles were attached to the adzes which now became hand axes. The added handle provided more torque and force when wielded with extended arms.
Human beings are adventurers and it finds ways to satisfy its curiosity. When it first looked up at the skies envied the birds in flight. It dreamed of being able to fly and glide into the air as effortlessly as the avian. Jumping from high cliffs and into the sea must have given it a thrill almost like that of flying. The problem was that it could not be sustained.
Efforts were made to copy bird motion in full flight. Observations were made on how the legs, the wings, and the tail behaved while flying. But all this came to naught as the force needed to escape the gravitational pull of the earth needed to have a more powerful source and this came with the creation of internally fired engines.
Contraptions that were heavier than air could not really fly, but with technological innovations, the rudimentary design married to an engine did manage to fly during the first decade of the twentieth century. Aerodynamics has come to the fore that made studies about air flows and the effects it had on surfaces. The wings of an airplane are designed to maximize the air passage to produce lift.
Continuous technological breakthroughs have made possible the production of the modern aircraft, both the fixed wing and the rotary winged. Composite materials are now used to form parts of an airplane. The most common material though is aluminum. Airplanes have redundant systems so much so that the risk of crashes is very minimal. But when it happens a safety gadget has to be on hand.
The military was probably the first to think of an item that would slow down a descending object. Designs were submitted for testing and the right fabric was found that became the hood with strings attached to it and fixed on a man. Chutes were then innovated and improve to serve as pilot accessory in times of emergency. With it in hand, the operator and passengers could now bail out safely.
Sport activities that originate from the sky are very dangerous. Skydiving and cliff jumping is very popular among new athletes. Human formations jumped off huge airplane to do difficult maneuvers forming hand to hand links that baffle the imagination. These feats could not have been done without the aid a safety device that is the parachute.
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