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Saturday, May 21, 2005

Science and Hinduism

2 comments
JAY SHREE POOJYASHREE SHREE AMMA
JAY MAHAN BRAHMASHREE GOPALAVALLIDASAR
JAY SHREE RADHEKRISHNA SATHSANG

Dear Readers,

We began with a new topic last time which was the law of motion. It dealt with
action-reaction phenomenon.The cause of this phenomenon is force.A force is a push or a pull upon an object which results from its interaction with another object. Forces result from
interactions. Some forces result from contact interactions (normal, frictional, tensional, and applied forces are examples of contact forces) and other forces are the result of action-at-a-distance interactions (gravitational, electrical, and magnetic forces). In every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object. The direction of the force on the first object is
opposite to the direction of the force on the second object. Forces always come
in pairs - equal and opposite action-reaction force pairs.

Continuing with our examples to explain this law,

Consider the propulsion of a fish through the water. A fish uses its fins to push water backwards. But a push on the water will only serve to accelerate the water. In turn, the water reacts by pushing the fish forwards, propelling the fish through the water. The size of the force on the water equals the size of the force on the fish; the direction of the force on the water (backwards) is opposite the direction of the force on the fish (forwards). For every action, there is an equal (in size) and opposite (in direction) reaction force. Action-reaction force pairs make it possible for fish to swim.

Consider the flying motion of birds. A bird flies by use of its wings. The wings of a bird push air downwards. In turn, the air reacts by pushing the bird upwards. The size of the force on the air equals the size of the force on the bird; the direction of the force on the air (downwards) is opposite the direction of the force on the bird (upwards). For every action, there is an equal (in size) and opposite (in direction) reaction. Action-reaction force pairs make it possible for birds to fly.

Consider the motion of a car on the way to school. A car is equipped with wheels which spin backwards. As the wheels spin backwards, they grip the road and push the road backwards. In turn, the road reacts by pushing the wheels forward. The size of the force on the road equals the size of the force on the wheels (or car); the direction of the force on the road (backwards) is opposite the direction of the force on the wheels (forwards). For every action, there is an equal (in size) and opposite (in direction) reaction. Action-reaction force pairs make it possible for cars to move along a roadway surface.

We hope that the scientific version of this law is now clear. We will continue with our discussions on this law in our next posting. Till then do continuous chanting

Radhekrishna Krishnaradhe Radhekrishna Krishnaradhe

Radhekrishna Krishnaradhe Radhekrishna Krishnaradhe

Sarvam Guruvarpanam.

Saturday, May 07, 2005

Science and Hinduism

0 comments
JAY SHREE POOJYASHREE SHREE AMMA
JAY MAHAN BRAHMASHREE GOPALAVALLIDASAR
JAY SHREE RADHEKRISHNA SATHSANG

Dear Readers,
In our last posting we gave you a comparison of the scientific law of conservation of energy and its 'spiritual version' having its base in 'Srimad Bhagwad Gita'. We said we would continue our discussions on that topic in our next posting.

However we are diverting our discussion to a different law in this posting.

In this posting we will discuss on a different scientific statement and link it with hinduism.

It goes as follows :

"To every action there is always opposed an equal reaction".

This statement is the third law of motion, established by 'Issac Newton'.

We will take an example for a better understanding.

Imagine a boy kicking open a door. The force exerted by the boy on the door accelerates the
door (it flies open); at the same time, the door exerts an equal but opposite force on the boy, which decelerates the boy (his foot loses forward velocity).The boy will be painfully aware of the 'reaction' force to his 'action' particularly if his foot is bare.

Let F stand for force,

FBD for force exerted by the boy on the door and
FDB for force exerted by the door on the boy.

Then according to this law,

FBD = -FDB

i.e the force exerted by the boy on the door equals the force exerted by the door on the boy.
However since there is a negative sign before FDB it means that the force exerted by the
door on the boy is in a direction opposite to the direction in which the boy is exerting force on
the door.

We will continue with more examples on this law in our next posting. Till then Radhekrishna.

Sarvam Guruvarpanam.

 

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