Thursday, December 20, 2012

World is not ending on 21st December, 2012 - Dooms Day

Most of the people all around the world are thinking that the world will end on Friday, 21st December, 2012.  Dec., 21, 2012 is the day when the 5,125 years old Mayan Calendar ends and some people have interpreted it as Dooms day.  For example the people in China have been buying tickets for a boat which will start sailing if the disaster strikes.  In Russia, many people are stocking the regular consumable supplies to ensure that they are prepared for the emergency.  And in Mexico, around 2,00,000 people are expected to flock to Chicken Itza, an ancient Mayan city as they are waiting for the world to end.

There is a wide spread and un necessary fear about the Dooms day on December, 21, 2012. Most of the people of the world are fearing about the end of the world on this day.  Opinion polls in America also indicate one in ten persons have a fear whether they will be able to celebrate Christmas this year.    A number of astronomical alignments and formulae were proposed pertaining to this date but none has been accepted by the scientific community.

So 21st December, 2012 will not be the end of the World as all people are thinking but it will be another winter solstice.  I have gone through NASA website where all the doubts regarding end of the world on 21st December, 2012 were answered by NASA scientists...  Here is a list of answers provided by NASA scientists for the questions related to 21st December, 2012 - Dooms day.  I am just copying the questions and answers which were published in the NASA website...  This is for the benefit of the people who are fearing about the end of world on 21st December, 2012.

Question (Q): Are there any threats to the Earth in 2012? Many Internet websites say the world will end in December 2012.
Answer (A):The world will not end in 2012. Our planet has been getting along just fine for more than 4 billion years, and credible scientists worldwide know of no threat associated with 2012.


Q: What is the origin of the prediction that the world will end in 2012?
A: The story started with claims that Nibiru, a supposed planet discovered by the Sumerians, is headed toward Earth. This catastrophe was initially predicted for May 2003, but when nothing happened the doomsday date was moved forward to December 2012 and linked to the end of one of the cycles in the ancient Mayan calendar at the winter solstice in 2012 -- hence the predicted doomsday date of December 21, 2012.


Q: Does the Mayan calendar end in December 2012?
A: Just as the calendar you have on your kitchen wall does not cease to exist after December 31, the Mayan calendar does not cease to exist on December 21, 2012. This date is the end of the Mayan long-count period but then -- just as your calendar begins again on January 1 -- another long-count period begins for the Mayan calendar.


Q: Is NASA predicting a "total blackout" of Earth on Dec. 23 to Dec. 25?
A: Absolutely not. Neither NASA nor any other scientific organization is predicting such a blackout. The false reports on this issue claim that some sort of "alignment of the Universe" will cause a blackout. There is no such alignment (see next question). Some versions of this rumor cite an emergency preparedness message from NASA Administrator Charles Bolden. This is simply a message encouraging people to be prepared for emergencies, recorded as part of a wider government preparedness campaign. It never mentions a blackout.


Q: Could planets align in a way that impacts Earth?
A: There are no planetary alignments in the next few decades and even if these alignments were to occur, their effects on the Earth would be negligible. One major alignment occurred in 1962, for example, and two others happened during 1982 and 2000. Each December the Earth and sun align with the approximate center of the Milky Way Galaxy but that is an annual event of no consequence.

Q: Is there a planet or brown dwarf called Nibiru or Planet X or Eris that is approaching the Earth and threatening our planet with widespread destruction?
A: Nibiru and other stories about wayward planets are an Internet hoax. There is no factual basis for these claims. If Nibiru or Planet X were real and headed for an encounter with the Earth in 2012, astronomers would have been tracking it for at least the past decade, and it would be visible by now to the naked eye. Obviously, it does not exist. Eris is real, but it is a dwarf planet similar to Pluto that will remain in the outer solar system; the closest it can come to Earth is about 4 billion miles.

Q: What is the polar shift theory? Is it true that the Earth's crust does a 180-degree rotation around the core in a matter of days if not hours? A: A reversal in the rotation of Earth is impossible. There are slow movements of the continents (for example Antarctica was near the equator hundreds of millions of years ago), but that is irrelevant to claims of reversal of the rotational poles. However, many of the disaster websites pull a bait-and-switch to fool people. They claim a relationship between the rotation and the magnetic polarity of Earth, which does change irregularly, with a magnetic reversal taking place every 400,000 years on average. As far as we know, such a magnetic reversal doesn’t cause any harm to life on Earth. Scientists believe a magnetic reversal is very unlikely to happen in the next few millennia.

Q: Is the Earth in danger of being hit by a meteor in 2012?
A: The Earth has always been subject to impacts by comets and asteroids, although big hits are very rare. The last big impact was 65 million years ago, and that led to the extinction of the dinosaurs. Today NASA astronomers are carrying out a survey called the Spaceguard Survey to find any large near-Earth asteroids long before they hit. We have already determined that there are no threatening asteroids as large as the one that killed the dinosaurs. All this work is done openly with the discoveries posted every day on the NASA Near-Earth Object Program Office website, so you can see for yourself that nothing is predicted to hit in 2012.

Q: How do NASA scientists feel about claims of the world ending in 2012? A: For any claims of disaster or dramatic changes in 2012, where is the science? Where is the evidence? There is none, and for all the fictional assertions, whether they are made in books, movies, documentaries or over the Internet, we cannot change that simple fact. There is no credible evidence for any of the assertions made in support of unusual events taking place in December 2012.

Q: Is there a danger from giant solar storms predicted for 2012? A: Solar activity has a regular cycle, with peaks approximately every 11 years. Near these activity peaks, solar flares can cause some interruption of satellite communications, although engineers are learning how to build electronics that are protected against most solar storms. But there is no special risk associated with 2012. The next solar maximum will occur in the 2012-2014 time frame and is predicted to be an average solar cycle, no different than previous cycles throughout history.

The above questions and answers were copied from NASA Website..


Wednesday, October 3, 2012

Ever Purse - A purse that charges your mobile phone

Purse that charges your mobile phone

Now you can charge your mobile phone by just putting it in a purse.  To charge your mobile phone,  you simply need to slip your phone into the charging pocket inside the purse.   Whether you are in the office or out of station,  the Everpurse will keep charging your mobile all day long.  When you come back to home, simply drop the Everpurse on the white charging mat for wireless charging!    So what is this Everpurse?:  Let us read something about the new purse that charges your mobile.


About Everpurse - purse that charges your mobile

27 years olkd  Chicago entrepreneur Liz Ormesher Salcedo has invented the 'Everpurse', the purse that charges your cell phone while on travel.   You simply drop your mobile into the pocket of the purse and it gets charged.  The Liz Ormesher Salcedo has developed the technology while working as a social worker where she regularly found her mobile phone running out of battery.  It was a big problem for her when mobile runs out of battery and so she looked for a solution and invented the Everpurse.

 Salcedo ahd her husband Dan who is a serial entrepreneur started experimenting with off-the-shelf parts of an electronic store and finally made the first prototype of Everpurse.   Now they have orders to make 1500 purses.

The Everpurse powers up when placed on a wireless charging pad, and holds a charge of two iPhone batteries when fully charged.  Salcedo said that the technology can easily be modified to hold even more charge.  For $600, you can have your existing purse fitted with Everpurse technology which they will sew into the lining of your bag by hand.

At present, Everpurse is compatible with iPhone 4, 4S and 5 as well as Samsung Galaxy S3 and will be expanded to work with more types of phones.

For more details about Everpurse please visit   Everpurse Website.

Bacteria discovered that can produce Gold


A bacteria has been discovered by scientists which has the ability to withstand huge amount of toxicity and is the key to create 24 carat gold.

Researchers at the Michigan State University found bacteria "Cuprividus metallidurans" which can grow on massive concentrations of gold chloride or liquid gold, a toxic chemical found in nature.  They fed the bacteria huge amount of gold chloride, mimicking the process they believe which happens in nature.  In a week's time the bacteria transformed the toxins and produced a gold nugget.


India's heaviest Satellite GSAT-10 launched succesfully

GSAT-10 - India's heaviest satellite launched successfully

GSAT-10 is India's heaviest and advanced communication satellite was successfully launched from Europe's spaceport in French Guiana in South America on 29th September, 2012.

GSAT-10 would augment telecommunications, DTH broadcasting and Radio navigation services.  GSAT-10 is 3400 Kg. at lift off is the heaviest satellite till now built by ISRO.  

 The GSAT-10 was launched by Ariane-5 rocket.  The Rocket blasted off from the launch pad at 2:48 AM (IST) and first injected European satellite ASTRA 2F into orbit followed by GSAT-10.

 GSAT-10 is expected to be operational from November, 2012 onwards with a design life of 15 years.



Monday, August 6, 2012

NASA’s Mars Rover “Curiosity” lands on Mars



NASA's Curiosity Mars Rover successfully lands on the Red Planet Mars

 After travelling more than 300 million miles, the NASA's Mars Science Laboratory Mission has achieved one of the most complex landings of the spacecraft on surface of the Mars on Monday, 6th August, 2012.  The Curiosity will start investigating whether the  conditions on the Mars are favorable for life or not..   

The NASA's Mars Rover Curiosity successfully carried out the highly challenging job of landing on the surface of the red planet Mars early on Monday, 6th August,2012.  The Curiosity rover has sent its first photograph back to earth two hours after landing on the red planet.  

 This challenging Curiosity landing process involved a sky crane and the world's largest supersonic parachute which allowed the spacecraft carrying Curiosity to target the landing area exactly.   The Curiosity landed on the Gale Crater which may have contained a lake once upon a time.   The rover will arrive at Mount Sharp in the center of the crater after 1 martian year equal to 98 weeks of earth .   The Curiosity will drive up the mountains examining the layers of sediment.    The $2.6 billion Curiosity had made its dramatic arrival on the Martian surface in a spectacle popularly known as Seven minutes of Terror.


The Mission Control at the NASA's Jet Propulsion Laboratory ( JPL) burst into cheers as the Curiosity touched down on the surface of Mars.  The team members hugged each other and some shed tears when Curiosity beamed back its first picture.

The spacecraft carrying Curiosity has been traveling away from Earth since 25th November, 2011 and has made a journey of approximately 567 million kilometers.  The Curiosity which will be controlled by the Jet Propulsion Laboratory has all the sophisticated tools for exploring the red planet.  These tools include 17 cameras, a laser which can survey the composition from a distance and instruments which analyze samples from rocks and soil.  The main aim of sending Curiosity to Mars is to know whether Mars ever had an environment to support life.

About Curiosity Rover 

  The Curiosity is a six-wheel nuclear powered  rover and is a much better technical experiment than any of the spacecrafts that landed on the red planet.  Some of the important things about Curiosity are given below.
  • Curiosity carries a laser that can drill holes in rocks up to about 25 feet and identify the chemicals inside. 
  • Curiosity has a 7 foot long robotic arm which has a power drill at the end which can bore into rocks and soils.  It can transfer the ground up powder into its onboard work bench to check for organics.
  • Curiosity has a 2 mega pixel color cameras which can beam panoramic views back to earth. 
  • Curiosity also has a video camera which records the last few minutes of its descent to Mars. 
  • Curiosity also has a weather station to take daily temperature and pressure readings and record seasonal changes. 
  • Curiosity has 20 inch aluminum wheels.
  • The highest speed of Curiosity is  one tenth ( 1/10) of a mile.  


Curiosity landed on Mars Surface at 06:33 BST.  ( 11:03 AM  IST).

 Here is the sequence of events that happened from entry into Mars atmosphere and landing.


5.45 AM  BST:   During the descent phase,  the space craft has to shed tungsten weights to shift its center  of gravity and fly through the Martian atmosphere.  It has to pop a huge parachute, fire the retro rockets and finally lower down the Curiosity on to the ground.  During these Seven minutes of terror, the spacecraft will be reducing its speed from 13,000 mils per hour to a standstill on the Martian surface.  


5.53 AM  BST:   The MARS Science Laboratory spacecraft is now within 10,000 Kms from Mars planet.  The probe accelerates as it arrives at the red planet and then slows down as it enters the Mars atmosphere.  The first move by the spacecraft is to pull the heat shield into a forward position.  

5.57 AM  BST:   The spacecraft is now inside the orbit of the Martian moon, Phobos.  During the entry, landing and descent phases 76 pyrotechnic charges will be fired on board the probe to release the tungsten weights and release the parachute.  The spacecraft has to sense its position and atmospheric conditions and use the onboard thrusters to steer its way to the landing site.
  
6.03 AM  BST:   Mars size is around half of earth.  The target landing spot for Curiosity is the Gale Crater which is around 3.5 billion years old.   The Curiosity will spend most of its Martian year at this crater exploring Mount Sharp which is an enormous mount in the center of the crater which is 5 Kms above the ground.  The space craft is now 20 minutes for entry.

Sunday, August 5, 2012

NASA's Curiosity Rover landing on MARS on 6th August,2012

Huge MARS Rover "Curiosity" set for nerve wracking landing on MARS on Monday 6th August,2012

After  eight and half months of journey crossing millions of miles between different planets,  the huge MARS Rover called "Curiosity" biggest and most complex rover ever sent to another world is now on its final approach for a hair-raising touchdown on Mars.