The ‘nano’ term come from word nanos (greek) that means 10-9 (one per billion). 1 nanometer (nm) equivalent with 10-9 meter. Nanotechnology is the technology that involved atoms and molecules with size smaller than 1000 nanometer. It means its size more small 100000 times than a human hair. Very little, very mini! The characteristic from all things depend on the arrangement of its atoms. The atoms in coal is the same with the diamond one. The only different is the structure. The atoms in the sand is the same with one in computer chips. Even the atoms that compiler water, air, and dust actually is the same with one in a potato! A little change happen to its structure can change the main characteristic of a things. This is the main concept of nanotechnology. With nanotechnology, coal and graphite are able to be reconstructed by us to become a beautiful diamond! All can be done in nanotechnology by rearrange the fundamentals particles that very small and simple. The result is the complex systems that affect our life.
What is the most complex system in the world? Maybe one thing until now that still can not be known by human: human brain. The human brain is the most sopisthicated computer that impossible to compare it with other human made’s computer. Maybe all along we rare to notice how comples our brain that drive us and our actions.
When we glared by light, we close our eyes automatically. The concept is very simple! That glare light can hurt our eyes so that we have to protect our eyes with close it. When hot in the middle of the day, we use hat to protect our head from the sun. When it’s rain, we use umbrella. When we smell awful aroma, we close our nose, with hands or handkerchief. When we exhaust, we seek for a drink. When we feel sleepy we seek the bed. When we shock we scream out spontaneously. When we sad, we cry. When we heard a joke, we laugh. All this simple event and always happen without we notice it. We seem like had programmed to do all of this. Is true that all that simple as it is?
When we feel sad, our brain do some very complex jobs. On our eyes there is tear duct, the biggest one is called lacrimal, its job is to produce tear. The tear out causing by sadness is differ with the one coming from look at the onion. When we sad, protein and hormone being produced excessively 20-25 %. It’s causing protein’s excess. This must be throw out in order to get the system stabilize. It’s the same way like throw away the shit or poisons. How is that? Yes, with cry!
The nerves on the brain send electrical signals to the tear duct. There is a little cavity on inside our eyes that being the strip of tear out. The tear run out till then the value of protein and hormone comeback to stabilize. When it’s reached, we stop to cry. The sadness is reduce because prolactin (stess hormone) are running out when we cry. So, that all complex physical-chemical process causing we cry when sad. Usually female, mainly the teenager, are often cry than male. This symptom maybe we consider as cultural habit. Actually this symptomis resulted from physical-chemical event. When child age, the cry capability between male and female are the same. But when teenager around (12-18 years old) female’s body produce more prolactin than the male once. It’s caused by maturity of breast duct, that its production linked with this prolactin hormone. So that’s causing female crying 4 times often than male. And this is not because they are sentimental! Females are often get the negative reputation because easily to emotional, so that are often to cry. But this thing instead, make female more healty than male. The chemical poisons on the body can throw out regularly with tears. The male are rare to cry are have more chemical poisons on his body.
All complex systems that occur on human’s body actually yield many things that we consider as usual in daily life. This concept is Complexity Theory, opposite from Chaos Theory. If chaos concept reveal that all small and simple things able to yield something complex, on Complexity Theory all complex systems can emerge something simple.
The complexity theory is often found in our vicinity, not only our body’s system, like Chaos Theory. The birds that flying around are often considered by us so simple. Actually that birds can fly with use many complex physical laws. So complex till human by now still can not imitate flying ability of the birds and other air animals. The human only able to imitate a part from birds fly concept to fly. The human apply that on the plane and other air transportation’s tools. The bird’s wings is being the main focus many physicist that work to develop and complete the technology that can handle earth gravity.
The wing’s plane imitate the bird’s wings in order to opposite earth gravity. There is airstream above and below the wing’s plane. The air particles below collides with the wings. Then, this particles bounce off downfall (to the ground). This is action force. In above of wings, there is another process that also yield the action force. The laws of Bernoulli and Coanda ‘work together’ to form up this action. When the air stream up on above part of wings, the pressure is P1. After through over tip point, air pressure on above wings suddenly decrease to P2. Because the change of this pressure, then velocity changed is occur created velocity gradient urge the plane to move forward. This is the law of Bernoulli.
There is another thing occur on plane’s wings surface. According to Coanda, the fluid particles that in contact with solid surface has lean to keep patch on that surface (this is known by Coanda Effect). This is proved if we hold a glass that full of water till it spilled, we can see water stream move down on glass surface. That water particles are not drowning directly. Instead, they keep adhere and move down on glass surface. The same thing occur on plane’s wings surface, the air particles stream out along above part of wings’s plane till reach below. On the tip point, that particles bunching together and keep coming till down wash. This down wash is one of the action force components. The ground that receive this action force, will give directly reaction force (Newton’s Third Law) that had the same value with action force but had opposite direction. Because the action is to the ground (downward), then the reaction is upward. This reaction force is the lift force that lift up the plane upward against earth gravity. So many the laws involved when flying the plane! The same laws occur when the birds flying around. All so complex actually can yield something that very simple, the simplest as the birds. Simple for the birds, but so complex to human to imitate it.
So, that’s Chaos Theory and Complexity Theory walk hand to hand. The simple system can make the complex system, and the complex system can make the simple system.
Now-a-days nanotechnology is providing good facilities.All can be done in nanotechnology by rearrange the fundamentals particles that very small and simple.i got a good knowledge in dis blog.
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