NEUTRINOS,
SANATKUMARS AND DEV RISHI NARAD
Neutrinos
:
Neutrinos are one of the fundamental particles which make up the
universe. They are also one of the least understood.
Neutrinos are similar to the more familiar electron, with one crucial
difference: neutrinos do not carry electric charge. Because neutrinos
are electrically neutral, they are not affected by the electromagnetic
forces which act on electrons. Neutrinos are affected only by a
"weak" sub-atomic force of much shorter range than electromagnetism,
and are therefore able to pass through great distances in matter
without being affected by it. If neutrinos have mass, they also
interact gravitationally with other massive particles, but gravity
is by far the weakest of the four known forces.
Three types of neutrinos are known; there is strong evidence that
no additional neutrinos exist, unless their properties are unexpectedly
very different from the known types. Each type or "flavor"
of neutrino is related to a charged particle (which gives the corresponding
neutrino its name). Hence, the "electron neutrino" is
associated with the electron, and two other neutrinos are associated
with heavier versions of the electron called the muon and the tau
(elementary particles are frequently labeled with Greek letters,
to confuse the layman). The table below lists the known types of
neutrinos (and their electrically charged partners).
Neutrino
|
|
ve |
|
vµ
|
|
vt
|
Charged
Partner |
|
electron
(e) |
|
muon
(m) |
|
tau
(t) |
Neutrinos
are subatomic particles, and they’re weird. They don’t
interact with matter very much, so to them most of the Universe
is transparent. They can pass right through the Earth without even
noticing.
Neutrinos are produced by the decay of radioactive elements and
are elementary particles that lack an electric charge.
From what we know today, a majority of the neutrinos floating around
were born around 15 billion years ago, soon after the birth of the
universe. Since this time, the universe has continuously expanded
and cooled, and neutrinos have just kept on going. Theoretically,
there are now so many neutrinos that they constitute a cosmic background
radiation whose temperature is 1.9 degree Kelvin (-271.2 degree
Celsius).
Other
neutrinos are constantly being produced from nuclear power stations,
particle accelerators, nuclear bombs, general atmospheric phenomena
and during the births, collisions, and deaths of stars, particularly
the explosions of supernovae.
Really
though to them the Universe is only mostly transparent. There’s
a very little chance they’ll interact with matter. If you
have enough neutrinos, a small number of them can ping off an atomic
nucleus and create an effect we can measure. The good news is there
are a lot of neutrinos flying around all the time. Billions of them
are passing through you right now!
That
makes them possible to detect if you are patient and careful. Happily,
scientists are both. Neutrino detectors have been assembled in various
parts of the world and have been pretty successful in finding the
little suckers. They use various methods to see them; for example,
some use the fact that when a neutrino slams into a chlorine nucleus,
it can change it into an argon nucleus. Those detectors need huge
amounts of chlorine for this, so they use tetrachloroethylene: dry
cleaning fluid!
But
the news today comes from a different kind of detector. This one
relies on the idea that a neutrino passing through ice can create
a shower of subatomic particles, like shrapnel. These particles
scream out from the collision and can actually travel faster than
light through the ice. This sounds impossible, but light speed is
the Universal limit when it’s traveling through a vacuum.
Light slows down when passing through air, or liquid, or matter.
So a subatomic particle can travel faster than light through matter,
while still traveling slower than light does in a vacuum.
[Note:
This is all very, very different than the claim of faster-than-light
neutrinos from 2011. That turned out to be due to an equipment malfunction.]
Detectors
designed to see the faint flashes of light when neutrinos interact
with ice
When
this happens, the particle creates a shock wave, just like a sonic
boom is created when something travels faster than sound. In this
case, though, it’s not a sonic boom, but a photonic boom,
a shock wave of light. This creates a faint blue flash called Cherenkov
radiation, and that can be seen using very sensitive detectors.
Scientists
have built just such a device in Antarctica. It’s called (get
this) Ice Cube, and it consists of a string of detectors lowered
1,500 to 2,000 meters (1 to 1.5 miles) beneath the very clear ice.
At that depth the ice is very smooth and dark, making it easier
to see the flash of light from a neutrino reaction.
Neutrinos
come from lots of different sources. Nuclear reactions in the Sun
produce prodigious numbers of them, as do nuclear reactors on Earth,
natural radiation from uranium decay inside the Earth, and even
more exotic phenomena like exploding stars. These neutrinos all
have different energies, so it’s possible in principle to
categorize the source by looking at how energetic the detected neutrino
is.
And that’s where Ice Cube has come through. Out of the countless
detections it’s seen, two of them nicknamed, seriously, Bert
and Ernie were phenomenally, unbelievably energetic: Each had an
energy over one thousand trillion times the energy of a visible
light photon. That’s huge, far larger energies than even the
Large Hadron Collider can create. It’s very roughly equivalent
to the energy of a raindrop hitting you on the head which may not
sound like much, but remember we’re talking about a single
subatomic particle with that much energy.
A
detector being lowered into a hole drilled into the ice
Not
very many things in the Universe can make neutrinos with that much
energy. Super massive black holes in the centers of galaxies are
one possible candidate; they are sloppy eaters, gobbling down and
spewing out fantastically high-energy beams of matter and energy.
Another possible source are gamma-ray bursts; explosions of stars
so violent they are second only to the Big Bang itself. These typically
occur in the very distant Universe, so statistically speaking if
these are the engines making these super-high-energy neutrinos,
then those little particles have traveled a long, long way before
hitting the ice in Antarctica.
The
scientists who made this detection note that they can’t completely
rule out less exotic sources; there’s a 99 percent or so certainty
that these neutrinos are not from some background source. That’s
not quite enough to pass the rigorous standards of particle physicists
(they prefer a minimum of 99.7 percent certainty to make a claim,
and really a 99.9999 percent certainty to claim discovery, like
with the Higgs particle last year).
Still,
it’s provocative. And what a claim! Using faster than light
particles to detect ghostly but super-high-energy intergalactic
particles that have traveled tens or hundreds of millions of light
years, only to get trapped beneath the Antarctic ice.
Neutrino
results challenge a cornerstone of Albert Einstein's special theory
of relativity, which itself forms the foundation of modern physics
September
22, 2011 |By Geoff Brumfiel and Nature magazine.
Cern
Cern
:
An
Italian experiment has unveiled evidence that fundamental particles
known as neutrinos can travel faster than light. Other researchers
are cautious about the result, but if it stands further scrutiny,
the finding would overturn the most fundamental rule of modern physics
that nothing travels faster than 299,792,458 meters per second.
The
experiment is called OPERA (Oscillation Project with Emulsion-t
Racking Apparatus), and lies 1,400 meters underground in the Gran
Sasso National Laboratory in Italy. It is designed to study a beam
of neutrinos coming from CERN, Europe's premier high-energy physics
laboratory located 730 kilometers away near Geneva, Switzerland.
Neutrinos are fundamental particles that are electrically neutral,
rarely interact with other matter, and have a vanishingly small
mass. But they are all around us the sun produces so many neutrinos
as a by-product of nuclear reactions that many billions pass through
your eye every second.
The
1,800-tonne OPERA detector is a complex array of electronics and
photographic emulsion plates, but the new result is simple the neutrinos
are arriving 60 nanoseconds faster than the speed of light allows.
"We are shocked," says Antonio Ereditato, a physicist
at the University of Bern in Switzerland and OPERA's spokesman.
Breaking the law :
The idea that nothing can travel faster than light in a vacuum is
the cornerstone of Albert Einstein's special theory of relativity,
which itself forms the foundation of modern physics. If neutrinos
are traveling faster than light speed, then one of the most fundamental
assumptions of science that the rules of physics are the same for
all observers would be invalidated. "If it's true, then it's
truly extraordinary," says John Ellis, a theoretical physicist
at CERN.
Ereditato
says that he is confident enough in the new result to make it public.
The researchers claim to have measured the 730-kilometer trip between
CERN and its detector to within 20 centimeters. They can measure
the time of the trip to within 10 nanoseconds, and they have seen
the effect in more than 16,000 events measured over the past two
years. Given all this, they believe the result has a significance
of six-sigma the physicists' way of saying it is certainly correct.
At
least one other experiment has seen a similar effect before, albeit
with a much lower confidence level. In 2007, the Main Injector Neutrino
Oscillation Search (MINOS) experiment in Minnesota saw neutrinos
from the particle-physics facility Fermilab in Illinois arriving
slightly ahead of schedule. At the time, the MINOS team downplayed
the result, in part because there was too much uncertainty in the
detectors exact position to be sure of its significance, says Jenny
Thomas, a spokeswoman for the experiment.
Thomas
says that MINOS was already planning more accurate follow-up experiments
before the latest OPERA result. "I'm hoping that we could get
that going and make a measurement in a year or two," she says.
If
MINOS were to confirm OPERA's find, the consequences would be enormous.
"If you give up the speed of light, then the construction of
special relativity falls down," says Antonino Zichichi, a theoretical
physicist and emeritus professor at the University of Bologna, Italy.
Zichichi speculates that the "superluminal" neutrinos
detected by OPERA could be slipping through extra dimensions in
space, as predicted by theories such as string theory.
Ellis,
however, remains skeptical. Many experiments have looked for particles
traveling faster than light speed in the past and have come up empty-handed,
he says. Most troubling for OPERA is a separate analysis of a pulse
of neutrinos from a nearby supernova known as 1987a. If the speeds
seen by OPERA were achievable by all neutrinos, then the pulse from
the supernova would have shown up years earlier than the exploding
star's flash of light; instead, they arrived within hours of each
other. "It's difficult to reconcile with what OPERA is seeing,"
Ellis says.
Ereditato
says that he welcomes skepticism from outsiders, but adds that the
researchers have been unable to find any other explanation for their
remarkable result. "Whenever you are in these conditions, then
you have to go to the community," he says.
Sanatkumars :
The
Kumaras are four sages (rishis) who roam the universe as children
from the Puranic texts of Hinduism, generally named Sanak, Sanatan,
Sanandan and Sanatkumar. They are described as the first mind-born
creations and sons of the creator-god Brahma. Born from Brahma's
mind, the four Kumar's undertook lifelong vows of celibacy (brahmacharya)
against the wishes of their father. They are said to wander throughout
the materialistic and spiritualistic universe without any desire
but with purpose to teach. All four brothers studied Ved's from
their childhood, and always travelled together.
Dev
Rishi Narad :
Rishi
Narad is regarded as the Manasaputra, referring to his birth 'from
the mind of Brahma. He is regarded as the Triloka sanchaari, the
ultimate nomad who roams the three lokas of Swargalok (heaven),
Mrityulok (earth) and Patallok (nether-world).
The
Sanatkumars and Rishi Narad can travel anywhere in the universe
and no one can stop them.
Conclusion :
When we combine religion with science we can come to conclusions
that Sanatkumars and Rishi Narad are Neutrinos.