We all already aware with this experiment as we have already learnt it in our school book of physics. Young discovered the interference principle of light waves in 1801 by this experiment. As we all know that when single light source is projected through the double slit sheet the interference pattern observed at the behind of that sheet.
Which proves that light is a wave. But the refined version
of that experiment shows some other results.
Can you answer a simple question: what will happen if we
project only a single particle electron or photon on the double slit? (Imagine
one slit is bigger than the size of photon). Can then there will be
interference pattern? Simply No because the particle chose any one slit to pass
from the sheet so there is no chance of interference.
But actually the right answer is: Yes it is. But how? How
could a single particle cross both slits at once? Moreover if we put detectors near
by the slits to detect from which slit the particle has passed then the
interference pattern will not observed.
This is the mystery of quantum mechanics. Can the particle
is aware that somebody is watching it ? How just our observation change the behavior
of particle.
Later a Nobel Prize winner scientist Eugene Paul Wigner says that our consciousness affects the state of
particles.
In this way first time an observer is also included in the experiment it means now
physics is no more only objective but it is subjective. It also depends upon
observation.
Schrodinger takes it very seriously and he did his famous Schrödinger 's cat experiment. Included
a living being (cat) in to his experiment. (check on Wikipedia for full
information about this experiment)
But the real credit goes to winger for including
consciousness (observer’s mind) in to physics.
As we know that the Indian spirituality or Vedanta (Hindu
philosophy of mind and supreme) is based upon consciousness the widely description
of consciousness is already in Indian spirituality, since thousands years ago.
This makes a lot of western scientists lured towards the Indian spirituality.
Including E. Wigner,H.
Stapp, S. Malin, E. Swedenborg, C.J.S. Clarkes, E.H. Walker and Ervin Schrödinger
.
They all finally accept the concepts of Vedanta and greatly affected
by Vedic culture and India.
In presently the study of Consciousness is the primary focus
of physics. As a lot of scientists of computer science (Artificial intelligence)
already said that without consciousness
(Soul or mind) intelligence is can’t defined.
Stuart Hameroff and Roger
Penrose( a colleague of Stephen Hawking)
is trying to define technically what human mind is all about. A shadow of mind written by Roger
penrose was already a very famous book on this subject. Few Hollywood movies
already made at this topic like What the
Bleep Do We Know! in 2004.
Finally physics has
its religious roots.
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