Tuesday 10 July 2012

Neutron Stars---Pulsars





"We discussed how certain massive stars will use up their nuclear fuel and the ensuing gravitational collapse that results will trigger a supernova, leaving behind a stellar remnant known as a "neutron star." This time around, we are going to discuss "pulsars". They were first observed on November 28, 1967 by Jocelyn Bell Burnell and Antony Hewish. For a short time, some people thought it was a form of galactic communications from an extraterrestrial civilization. 

A pulsar is a highly magnetized neutron star that emits electromagnetic radiation from its magnetic poles, while it spins with great speed from its rotational axis. Charged particles moving along the magnetic field is what causes a beam of radiation to be emitted from the magnetic axis. The magnetic axis and spin axis are in two very different locations, so when they rotate, it would seem like a pulsating lighthouse from a distant region in space. Each pulse is made up of radio waves with different frequencies, much the same way white light is made up of all of the color frequencies in the electromagnetic spectrum. 

But why does it spin? Astronomers say it's because of the conservation of angular momentum before the supernova went into action. To put it more simply, if you take a large object with a slight spin, compress it down to a smaller object, watch as the rotation speeds up. Pulsars can spin 20 times a second while others will undergo hundred rotations per second, but that is not the only reason these objects spin so fast. Some pulsars are in fact, traveling through space 4,000 times faster than a jumbo jet. 

Regular pulsars, in general, can last for 10 million to 100 million years. Although there's a certain type of pulsar that is known to outlast the "ordinary" ones. They are known as "millisecond pulsars." When a companion star (perhaps a red giant) gets close enough to a regular pulsar, the pulsar will then absorb its material into the form of a disk which surrounds itself. The transfer of materials also transfers into the momentum, which increases the rotation speed. The fastest one (that we know so far) can rotate over 700 times per second. Another fascinating detail is that millisecond pulsars can last over hundreds of billions of years or possibly forever (when it devours material from neighboring stars)

P.S. the youngest pulsars (when I say "young", I mean by a few thousand years old) can be found in a nebula, the remnants of a supernova. In other words, within every stellar grave site, you may find a "resurrected" object in a state unlike its former self, moving through space beyond its time.

Friday 17 February 2012

NASA - Planet X Nibiru - Heading Towards Earth - 21 DEC 2012!

NASA declared that there are some planets beyond Saturn which are not known yet. In fact, NASA found one planet near SATURN which is approximately 100k miles away from SATURN. They named it PLANET X NIBIRU.


Its been scheduled by NASA that this will pass between JUPITAR and MARS on 21st December 2012. The main point behind the 21st Dec 2012 is that there is a danger that when this passes near the Earth on that scheduled date, it will release Asteriod which may hit the EARTH.



But fortunately, NASA and RUSSIA will launch a space shuttle equiped with NUCLEAR WEAPONS so that they can prevent that danger.

NASA Stated:

" As we know that, this incident will happen, but there is nothing to worry about. The world will end, but not in 2012. We still have several years to stay over here. We had researched everything and planned the cure of bad activities going to be happen."

Monday 6 February 2012

Earth's South Pole Disappeared - NASA !

NASA declared a result that the South Pole of the Earth has been DISAPPEARED!
This happened on 30th January, 2010 but NASA kept it a secret and did'nt disclose to the world. Later on, it was opened to the public after several investigations of this incident. The Scientists have not found any exact reason behind this dangerous activity. However, it is still considered due to Magnetic Field Twist.


Due to this, a string of major Earthquakes hit Samoa and Indonesia. They were of about more then 7.2 magnitude.
Another series of Quakes hit Vanatu on Oct 7. An 8.1 Magnitude Earthquake was followed by 6 aftershocks listed at 6.0 or Greater and 14 aftershocks at 5.0 or Greater , All Within a 12 Hour Period.

 
Moreover, the below graph shows an incredible change of Earthquakes frequency in past few years.


NASA discovered a Giant Breach in Earth's Magnetic Field!

Earth's Magentic Field stops the direct radiations and heat coming from Sun to protect the Earth's surface. Its job is to repel the rays and make them weaker enough to come to Earth.


But on 21st January, 2009, NASA observed that  the Earth's Magnetosphere received a magnetic blast coming from Sun. And on January 23rd, the Magnetic Field lines were very erratic and were twisting!
Then, another observation came that the Earth's Magnetic Field is having a giant breach which is much dangerous for Earth.


On September 29, 2009, another Magnetic Field Twist came into being.

NASA discovered Solar Conveyor Belts in the Sun!

NASA Scientist named " Dr. Mausumi Dikpati" discovered Solar Conveyor Belts which control the Sun's magnetic field.


These magnetic hurricanes appear as Sunspots. In fact, these Sunspots bring Tsunamis. David Hathaway reports that the top of the sun's Great Conveyor Belt has been running at record-high speeds for the past five years.
 

The Great Conveyor Belt is a massive circulating current of fire (hot plasma) within the sun. It rises from its core. These belts are of two types; north belt and south belt. These belts complete their one circle in about 40 years. Researchers believe the turning of the belt controls the sunspot cycle, hence, it is considered as a fact.The upper belt skims the Sun's surface, sweeping up knots of solar magnetism and carrying them toward the poles. NASA's Solar and Heliospheric Observatory System (SOHO) tracks these knots and these are called magnetic elements.