| VIDEO TALKS |
- RGUKT (Rajeev Gandhi University for Knowledge Technology)
Thermodynamics
for general engineering students : year 2011
for Metullurgy students : year 2013
- K. P. N. Murthy Seminar at Alabama A&M Dept. of Physics University of Alabama
Demons don't die - the Second law of thermodynamics
https://youtu.be/l-kHb60yBvI : Demons don't die-1
https://youtu.be/NZXfVx6xu5Q : Demons don't die-2
https://youtu.be/2JjWuxaDWK8 : Demons don't die-3
https://youtu.be/JmDaSKP9Lg8 : Demons don't die-4
https://youtu.be/6dDKKWwEPmk : Demons don't die-5
https://youtu.be/-lVu8yU-sFY : DEMONS DON'T DIE-ALL(Bharath)
Uploaded on Jun 18, 2011
I am going to talk about one of Maxwell's mischiefs.
In the year 1857 Maxwell proposed an entity that violates
the second law of thermodynamics. Ever since the entity is
christened Maxwell's demon. In this talk I shall tell you
of the origin of the second law of thermody-namics, various
ways of stating it and what it implies. It is one law that
has not yet been proved; nor is their any experiment in
which it is violated.
A consequence of the second law is that it is impossible
to extract work from an isolated equilibrium system.
Maxwell considered a box full of equi-librium gas with a
partition in the middle. There is a hole in the partition
guarded by a demon. The demon opens the door only when
a fast moving molecule tries to go from right to left and
a slow moving molecule from left to right. In this way it
manages to create a temperature gradient. A Carnot's engine
operating between hot left partition and cold right partition
would extract work. The demon can thus defeat the second law.
Ever since, Maxwell's demon has been haunting the physics
community. Several attempts have been made to vanquish the
demon. In fact at least on two occasions the demon was
pronounced dead. But then the demon didn't die.
In this talk
I shall tell you of the story of the demon and its various
disguises. In particular I shall tell you of some very recent
developments that relate equilibrium free energies to
non equilibrium work fluctuations
-
Daniel Bernoulli by Prof. K P N MURTHY sir 21 September 2015, CIS, University of Hyderabad :
Melukota Nandakishore
Daniel Bernouilli and Fluid Dynamics
https://youtu.be/KB66KN7w_20 : Daniel Bernouilli
A talk on Daniel Bernoulli and Fluid Dynamics delivered on September 21, 2015
at the Junior Science Club, Centre for Integrated Studies (CIS),
University of Hyderabad
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