UPGRADE YOUR BODY

BRAIN :
When you 'think' there is electrical activity in the brain. It can be taken out using electrodes,amplified and can be used to control a robotic arm. So doing things at the speed of thought is possible.

SPINAL CORD:
Even today, people are getting artificial replacements of spinal cord. It will be improved further. It may aid paralytic patients to walk again in future.
LUNGS:
"Extra corporal membrane oxygenation" ECMO, a artificial lung which can be carried in a backpack is already available. It functions like real lung and stays outside the body.

KIDNEYS:
We know, dialysis machines does the work of kidneys from outside the body. Also kidney transplant are taking place- but the wait is long. Research to make artificial kidney is in progress.

GENES:
Creating genetically modified human being is possible. But it has so many ethical issues. 'Cloning' is the starting points in this direction. We do not know what the future holds. Man may play God?

EYES:
We have spectacles, google glasses and reality devices. Smart contact lens is on the way. It can record images at the blink of the eye. It can produce smart overlays which can help in shopping and driving in low visibility.

EARS:
Modern hearing aid is very sleek and invisible. The cochlear implants bypass the damaged ear parts and electronically simulates the hearing nerve and make hearing possible.

HEART:
Researches to make artificial hearts are underway around the world. If one is produced successfully, it will be the monumental achievement in medical technology.

LIVER:
We now have artificial liver which can work from outside the body. It just only supports some functions of the liver. We have not yet fully understand the working of the liver. Hence we are not able to make a suitable substitute for it. But with progress of time, anything may be possible-like moon landing.

SKELETON:
Without replacing the bones within the body, one can use exo- skeleton which may help paralyzed persons and elderly people. One can enhance its functions using powered exo-skeleton.
Tomorrow, many of our body parts can be replaced by machines, enhancing our life and improving our longevity. But ethics, morality, humanitarian values should not be replaced.
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THE EARTH, A SUPER ORGANISM

JOIN MY COURSE: "Become a programmer in a day with python" A man called 'love lock' (what a name) proposed a theory called Gaia theory, named after Greek Goddess. It says, "Earth is a self-regulating organism like a human being. The organic life in it interacts with in-organic matter and maintains atmosphere, temperature and environment". Hence the earth is still suitable for the life to thrive. Imagine, in a particular place, there are lot of flowers. Some flowers are white and some are darkly coloured. We know, white reflects light and heat while dark absorbs the same. White flowers can thrive in hot climate. But dark flowers requires cold climate. The absorption and reflection balances and the environment reaches average, warm temperature at which both the flowers can co-exist. This is the essence of "Gaia" theory. On our earth, the oxygen constitute 20% of the atmosphere. The oxygen level is always mai

THE PARABOLA

A jet of water shooting from a hose pipe will follow a parabolic path. What is the so special about parabola. Y= x^2 Draw a graph for the above equation. It will result in a parabola. This parabola is also called unit parabola. Any equation involving square will yield a parabola. Example: Y = 2x^2 +3x+3 (also called quadratic equation) X= 2 and -2, both satisfies the equation 4 = X^2. Parabolic equations always have two solutions. Any motion taking place freely under gravity follows parabolic path. Examples: An object dropped from a moving train, A bomb dropped from flying plane, A ball kicked upwards. If a beam of light rays fall on the parabolic shaped mirror, they will be reflected and brought to focus on a point. This fact is made use of in Dish Antenna, Telescope mirrors, etc. Inverted parabola shape is used in the construction of buildings and bridges. Because the shape is able to bear more weight. A plane

DISORDER IS THE "ORDER OF THE DAY"

Imagine a balloon full of air. The air molecules are moving randomly inside the balloon. Let us pierce the balloon with a pin. The air rushes out. Why should not the air molecules stay inside the balloon safely and ignore the little hole? That is not the way the world works. The molecules always "want to occupy as many states as possible". Hence the air goes out in the open to occupy more volume. The things always goes into disorder (entropy) and the disorder increases with time. The above statement is what we call "second law of thermodynamics". Consider a cup of coffee on the table. Suppose the heat from entire room flows to your cup of coffee, the coffee will boil and the rest of the room will freeze. Freezing means bringing things to order and arrangement. It violates the second law. Hence it will never happen. Hence heat must flow from high temperature to low temperature and not the other way. The air molecules in y

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