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Saturday, May 21, 2005

Science and Hinduism

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.

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