Stephen Hawking on UFOs and ETs

In this brief video (10 min., delivered this 2008), Prof. Stephen Hawking talks about three things -- his theory on the origin of the universe, the (very low) possibility of alien life, and the future of the human race.

On the existence of UFOs and extraterrestrials: "I am discounting reports of UFOs. Why would they appear only to cranks and weirdos? If there is a government conspiracy to suppress the reports and keep for itself the scientific knowledge the aliens bring, it seems to have been a singularly ineffective policy so far. Furthermore, despite an extensive search by the SETI project, we haven't heard any alien television quiz shows. This probably indicates that there are no alien civilizations at our stage of development within the radius of a few hundred light years. Issuing an insurance policy against abduction by aliens seems a pretty safe bet ..."

On whether there's alien life within the Milky Way galaxy: "I think it quite likely that we are the only civilization within several hundred light years. Otherwise we would have heard radio waves. The alternative is that civilizations don't last very long but destroy themselves."

Big Bang, cosmology, ET, Stephen Hawking, UFO

Comments

[James Tankersley Jr]

I see that the GLAST telescope has been launched today.

How much time might be required before analysis of GLAST data might indicate proof or rejection of Hawking Radiation theory?

This could be critical in determining the safety of the Large Hadron Collider, due to begin collisions later this year.

Unlike what CERN tells the public, the Large Hadron Collider Safety Assessment Group (LSAG) writes that current safety arguments are not valid proof of safety. Micro black holes might be created by the Large Hadron Collider, they might not evaporate, they might grow quickly and we have not been damaged by cosmic rays because cosmic rays pass harmlessly through Earth. CERN also tells the public that a new safety report has been completed, but so far the final report has not been released for review by world’s scientists.

The legal complaint before US Federal Court in Hawaii demands 4 months to review this safety report and a permanent injunction if safety can not be assured to within reasonable industry standards. First hearing is scheduled for June 16, 2008.

Learn more at LHCFacts.org

[socratus]

Entropy. / My opinion /.
=======...
1.
Henry Poincare named the conception of "entropy "
as a " surprising abstract ".
2.
Lev Landau (Dau) wrote:
" A question about the physical basis of the
entropy monotonous increasing law remains open ".
3.
The famous mathematician John von Neumann said to
"the father of information theory" Claude Shannon:
" Name it "entropy" then in discussions
you will receive solid advantage, because
nobody knows, what "entropy" basically is ".
=============..
1.
Between 1850 - 1865 Rudolf Clausius published a paper
in which he called " The energy conservation law" as
" The first law of thermodynamics". But in our nature the
heat always flows from the higher temperature to the
lower one and never back. In our everyday life we don't see
the heat itself rises from cold to hot. So, it seemed that
in thermodynamics " The energy conservation law"
wasn’t kept, this law was broken. But Clausius had another
opinion. He thought: I know people believe that this process is
irreversible, but I am sure that " The energy conservation law"
is universal law and it must be correct also for thermodynamic
process. So, how can I save this law ?
Probably, in the thermodynamic process there is something
that we don't know. Maybe, there is some degradation
of the total energy in the system which never disappears .
Perhaps, there is some non-useful heat, some unseen process ,
some unknown dark energy , some another form of potential
energy/heat itself which can transform heat from the cold
body to the warm one. I will call this conception as " entropy"
and it will mean that changes of entropy (dS) can be calculated
for reversible process and may be defined as the ratio of the
quantity of energy taken up (dQ) to the thermodynamic
temperature (T), i.e. dS= dQ /T.
And because I don't know how this process goes I won't call
it as a law but as " The second principle of thermodynamics "
which says that " the entropy of an isolated system always
increases ". Another version: " No process is possible
in which the only result is the transfer of heat from a hotter
to a colder body. It is possible some reversible process which
is unknown now ."
2.
Between 1870 - 1880 Ludwig Boltzmann said:
" Clausius is right. But I can add more to his entropy conception.
First.
According to Classic physics when an isolated thermodynamic
system comes to a thermal equilibrium all particles stop their
moving. From one hand it is correct. But the system cannot be
at thermal equilibrium (in the state of thermo death) all the time.
The situation in the system must change.
Therefore I say that at the thermal equilibrium the entropy
(some unknown dark/potential energy ) of the system will
reach maximum and as a result , the thermal equilibrium
of the system will change.
Second.
I don't know how exactly the thermal equilibrium of the system
changes. But I can give probabilistic / statistical interpretation
of this changing process. I can write " The second principle of
thermodynamics" by a formula: S= k log W and this formula
says:" the entropy ( heat) of the system is the collective result of
mechanical motion and friction of all the particles (k)."
I will call it as " The second law of Thermodynamics."
3
In 1900 Max Planck said:
Clausius and Boltzmann are both right.
But all my life I worked almost exclusively on problems
related to thermodynamics. And I am sure that the " The second
law of Thermodynamics" , concerning entropy, is deeper and it
says more than is generally accepted. I am sure the Boltzmann's
probabilistic /statistical version of "The second law of
Thermodynamics " is not completed, is not final.
Please, look at the graph of the radiation curves of the " black body".
They are very similar to those curves which are calculated
by Maxwell for the velocity (i.e. energy) distribution of gas
molecules in a closed container. Could this black body radiation
problem be studied in the same way as Maxwell's ideal gas....
...electromagnetic waves ? This problem of connection between
radiation of black body and Maxwell's Electrodynamics theory
doesn't give me peace. Maxwell's theory can tell everything
about the emission, absorption and propagation of the radiation,
but nothing about the energy distribution at thermal
equilibrium. What to do? How to be ?
After trying every possible approach using traditional
classical applications of the laws of thermodynamics
I was desperated. And I was forced to consider that the
relation between entropy, Boltzmann's probability version
and Maxwell's theory is possible to solve by suggestion ,
that energy is radiated and absorbed with discrete
individual quanta particle (E= hv). So, now I must write
" The second law of Thermodynamics " by formula:
hv = k log W.
But if I look to the Clausius inequality I see that entropy
is energy divided per temperature.
So the formula hv = klogW is hv = kT logW I think.

I was so surprised and sceptical of such interpretation the
entropy that I spent years trying to explain this result
in another , less revolutionary way. It was difficult for me
to accept this formula and to understand it essence .
It was hard for me to believe in my own discovery.
==================..
My conclusion.
How to understand this formula?
Which process does formula (hv = kT logW ) describe ?
1.
In 1877 Boltzmann suggested that the energy/mass state
of a physical system (of ideal gas ) could be discreted.
This idea was written with formula: R/N=k. It means:
there are particles with energy/mass state (k) in physical
system of ideal gas . They dont move, they are in the
state of rest.
2.
In 1900 Planck followed Boltzmann's method of dividing.
Planck suggested that energy was radiated and absorbed
with discrete "energy elements" - " quantum of energy"-
- " Planck's action constant"- (h) . This fact means:
electron produces heat, setting in mechanical motion and
friction all particles. This fact is described with Planck's
formula: hv = kTlogW.
3.
In which reference frame does this process take place?
In thermodynamical reference frame of ideal gas and
black body (M. Laue called this model as Kirchhoff,s vacuum).
Now it is considered that these models are abstract ones which
do not exist in nature. On my opinion these models explain
the situation in the real Vacuum (T=0K) very well.
4.
For my opinion the formula (hv = kT logW ) says:
a)
The reason of " entropy" , the source of thermal equilibrium's
fluctuation , the source of Vacuum fluctuation is an action of
the particle /electron, which has energy: E = hv (hf).
b)
The process of Vacuum fluctuation depends on collective
motions of all particles (k) and will be successful if enough
statistical quantity of Boltzmann's particles ( kT logW)
surround the electron.
c)
Which process does the formula (hv = kT logW ) say about ?
This formula describes the possibility of realization of
macro state from micro state. This formula explains
the beginning conditions of gravitation,
the beginning conditions of star formation.
1.
hv = kT logW.
hv > kT logW.
hv < kT.
2.
hv --> He II --> He I -->
( P. Kapitza , L. Landau , E.L. Andronikashvili theories).
(Superconductivity, superfluidity.)
3.
Plasma reaction... -->
4.
Thermonuclear reactions ...-->......etc.

d)
Thanks to Entropy the homogeneous Vacuum is broken.
Thanks to Entropy the micro process changes into
macro process.
Thanks to Entropy the stars formation takes place.
Thanks to Entropy " the ultraviolet catastrophe" is absent.
Thanks to Entropy our Milky Way doesn't change into radiation.
Thanks to Entropy the process of creating elements takes place.
Thanks to Entropy the process of evolution is going.
e)
One physicist said :" The entropy is only a shadow of energy“.
Maybe now somebody can understand why entropy is a shadow.
And maybe now somebody will understand why
" The Law of conservation and transformation of energy"
is also correct for thermodynamic system.
fg)
Why is " The second law of Thermodynamics"
so universal? Because it is based on
" The Law of conservation and transformation of energy"
And this law is not the simple accounting solution of debit and credit.
The sense of this law is dipper and it says more than is usually accepted.
===========..
P.S.
It took me about three months to write this brief article.
Plus about three years searching for the key of entropy problem.
Plus about twenty-three years trying to understand the essence
of physical laws and formulas.
==============..
Best wishes.
Israel Sadovnik. / Socratus.
http://www.socratus.com
http://www.wbabin.net
http://www.wbabin.net/comments/sadovnik.htm
http://www.wbabin.net/physics/sadovnik.pdf

=====================..

[socratus]

What was before: “ big bang” or vacuum ?
============.
The physicists created the “ Europe’s Large Hadron Colider “
Please, look how our physicists made this accelerator.
Before they made vacuum and after they generate big reaction
between two meeting particles, some small imitation of “ big bang”.
They didn’t make this process vice versa.
So, what was before in the Universe: “ big bang” or vacuum ?
===========================

[socratus]

The mad CERN’s project.

This week's startup of Europe's Large Hadron Collider didn't generate
a big bang or a black hole, but it did generate a big reaction from folks
who followed our series on the "Big Bang Machine."
More than 40,000 people voiced their opinion by clicking through
our unscientific survey or by discussing the issues in online forums.
Full Story:
http://cosmiclog.msnbc.msn.com/archive/2008/09/12/1386080.aspx

===============..
The mad CERN’s way.

In 1906, Rutherford studied internal structure of atoms,
bombarding them with high energy a- particles.
This idea helped him understand the structure of atom.
But the clever Devil interfered and gave advice to physicists
to enlarge the target. Bomb them!
And physicist created huge cannon-accelerators of particles.
And they began to bomb micro particles in the vacuum, in hoping
to understand their inner structure. And they were surprised with
the results of this bombing. Several hundreds of completely new
strange particles appeared. They lived a very little time and do not
relate to our world. Our Earth needs its real constants of nature.
But this was forgotten.
What God carefully created, is destroyed in accelerators.
And they are proud of that. They say: we study the inner structure
of the particles. The clever and artful Devil is glad. He again has deceived man.
Physicist think, that an accelerator - is first of all the presence of huge energy.
And the Devil laughs. He knows, that an accelerator - is first of all the Vacuum.
But this, he has withheld from man.
He has not explained that the Vacuum is infinite and inexhaustible.
And in infinity there is contained an infinite variety of particles.
And by bombing the vacuum, one can find centaurs and sphinxes.
But my God, save us from their presence on Earth.
========= .. ========.
Rutherford was right.
His followers are mistaken.
Why?
Imagine, that I want to plant a small apple- tree.
For this purpose I shall dig out a hole of 1 meter width and 1,20 m depth.
It is normal.
But if to plant a small apple- tree, I shall begin to dig
a base for a huge building (skyscraper),
or if to begin drill ground with 10 km. depth,
will you call me a normal man?
========== .. ===============.
Imagine a man who breaks watches on the wall.
And then he tries to understand the mechanism of the watches
by thrown cogwheels, springs and small screws.
Does he have many chances to succeed?
As many as the scientists have who aspire to understand
the inner structure of electron by breaking them into accelerators.
If not take into account the initial conditions of Genesis,
the fantasies of the scientists may be unlimited.
========== . ======== .
The Nature works very economical.
For example, biologists know 100 ( hundred ) kinds of
amino acids. But only 20 ( twenty) kinds of amino acids
are suitable to produce molecules of protein, from which all
different cells created on our planet. What are about another
80 % of amino acids? They are dead end of evolution.
The physicists found many ( 1000 ) new elementary particles in
accelerators. But we need only one ( 1) electron and one (1 )
proton to create first atom, to begin to create the Nature.
All another elementary particles (mesons, muons , bosons, taus,
all their girlfriends - antiparticles, all quarks and antiquarks…etc)
are dead end of evolution.
===========..
The Universe as whole is Vacuum, at first of everything.
So, instead of understand that Vacuum, Electron, Proton are
themselves, the physicists break them in the pieces.
==============.

[socratus]

Hawking bets CERN will not find the God Particle

http://www.physorg.com/news140161003.html

[socratus]

Would the reader like to know what a 'singularity' is ?
I quote Hawking from page 53 in his book:
A brief history of time(1988)
' The answer to this came out of a completely different approach introduced by a British mathematician and physicist, Roger Penrose in 1965. Using the way light cones behave in general relativity together with the fact that gravity is always attractive, he showed that a star collapsing under its own gravity is trapped in a region whose surface eventually shrinks to zero size. And, since the surface of the region shrinks to zero, so too must its volume. All the matter in the star will be compressed into a region of zero volume, so that the density of matter and the curvature of space-time become infinite. In other words, one has a singularity contained within a region of space-time known as a black hole.'
============..