A question of Black holes.

[alokmohan]

Wheeler named it.

 

[thamior]

A black hole is the result of a massive star reaching the end of its life and imploding on itself if I am correct. At its center is a singularity of infinite density (though some would agree with the string theory) <div class="Discussion_UserSignature"> <p>--What is the truth but a wisp of truly un-attainable information.  There is no absolute truth anyways, only false perceptions and misgivings.--     </p> </div>

 

[alokmohan]

A star on finishing its fuel will end in terms of its solar mass.If it is upto 1.4 solar masses it will end its career with being a white dwarf.If it is in between 1.4 to 3 solar masses it becomes a neutron star.If it is more than three solar masses it ends as a black hole.1.4 is called Chanrasekhar limit ,as S.Chadrasekha worked it out first.

 

[alokmohan]

Frankly our understaning of theory of relavity also fails to explain singularity.Fierry marriage of quantum mechanics and laws of Einsteins gravity gives rise to quantum gravity,that can explain.Only John Whheeler knows.He wont tell.<br />John Wheeler is one of the finest American theoretical physicists. He has done a great deal to increase the understanding of black holes while utilizing the concepts of relativity. <br />John Wheeler was born in 1911 in the United States. As a young man he showed an intense interest in the sciences. Wheeler attained his Ph.D. in the area of physics. John Wheeler has done extensive research and has written many books. As an author, he has written many articles and books alone and in collaboration with several of his students. Wheeler was offered a faculty position at Princeton University which he accepted in the mid 1930's. He has been considered one of the best teachers of theoretical physics there or anywhere. He has always been very friendly and inspiring to his many students. In fact, he has served as the mentor of the theoretical physicist Kip Thorne who even surpassed his own reputation as a very productive physicist. His teaching style was such that he would provide help to his students whenever they asked for it and would give his students a nudge in the right direction whenever they were stuck. He has worked with such famous physicists as: Einstein, Thorne, Oppenheimer, Bohr, etc. In fact, Wheeler would sometimes take his first year students to the house of Albert Einstein. John Wheeler currently is a professor emeritus of Princeton University in New Jersey. <br /><br />Wheeler has made many contributions to the scientific community. In 1939, he worked with Niels Bohr and co-authored an article on nuclear fission. He was the leader of the U.S. team that sought to create the first hydrogen bomb. In 1956, he helped to determine what types of materials are located inside dead, cold stars. That material was determined to be the ele

 

[alokmohan]

It was Wheeler who coined the term black hole.

 

[alokmohan]

And it so since 1967.Nexium please say somehing .Thread in danger.

 

[enigma10]

in danger of being sucked into a black hole. <img src="/images/icons/wink.gif" /> <div class="Discussion_UserSignature"> <em>"<font color="#333399">An organism at war with itself is a doomed organism." - Carl Sagan</font></em> </div>

 

[alokmohan]

And then tidal forces will rip you apart.Squeeze you and stretch you from different sides.You become quark.

 

[enigma10]

I'm already a quark.. least my wife tells me.<img src="/images/icons/wink.gif" /> <div class="Discussion_UserSignature"> <em>"<font color="#333399">An organism at war with itself is a doomed organism." - Carl Sagan</font></em> </div>

 

[alokmohan]

It means you are in a blackhole,may be.

 

[thamior]

After being sucked into a black hole you become quark? No doubt, your wife thinks you're a quark, you spend more time on here with us than with her, but really...do you become quark when you get sucked into a black hole? <div class="Discussion_UserSignature"> <p>--What is the truth but a wisp of truly un-attainable information.  There is no absolute truth anyways, only false perceptions and misgivings.--     </p> </div>

 

[alokmohan]

All husbands become quark when in black hole.Wifes say so.

 

[alokmohan]

We are all quark stars.

 

[alokmohan]

Wheeler and KIP says so.

 

[enigma10]

New info.<br /><br /><i><font color="yellow"> <br /> <br />In a discovery that may have profound implications, an Indian theoretical physicist and his British collaborator have given a surprising new twist to one of the great mysteries about black holes.<br /><br />Their result shows that either the analysis of the famous British physicist Stephen Hawking is faulty or quantum mechanics, whose laws apply to the behaviour of matter in the quantum world of particle physics, "must break down".</font></i><br /><br />LINK- http://www.hindustantimes.com/news/181_1947540,0004.htm<br /><br /> <div class="Discussion_UserSignature"> <em>"<font color="#333399">An organism at war with itself is a doomed organism." - Carl Sagan</font></em> </div>

 

[alokmohan]

Indian scientist.Iam so happy you have passed this on.

 

[docm]

The information paradox issue was actually resolved some months ago. Hawking lost and admitted it. <div class="Discussion_UserSignature"> </div>

 

[alokmohan]

A constant debate with Kip Thorn is on.

 

[alokmohan]

New Delhi, MARCH 11: For years physicists have believed that nothing survives in black holes. Light rays certainly don’t. Nor does any other form of( Indian express.)<br />)<br /> <br /> <br /> <br /> <br /> Bride Groom India USA UK UAE Canada Australia Pakistan Saudi Arabia Kuwait South Africa<br /> 18 - 24 25 - 30 31 - 35 36 - 45 46 - 50 50+ Hindu - Assamese - Bengali - Gujarati - Hindi - Kannada - Malayalam - Marathi - Marwari - Oriya - Punjabi - Sindhi - Tamil - Telugu Muslim Christian Sikh Parsi Jain Buddhist Jewish Other No Religion Spiritual <br /><br /> <br /><br /> <br /> Related Stories Bill to ensure scientists benefit from own projects<br />Kalam for grassroots benefit research<br />EU-India science meet from Feb 7<br />Pune scientist’s find may explain origin of cosmic rays<br />‘Research companies need to be protected from pirates’<br />But an Indian scientist in Bhubaneswar and his colleague in the United Kingdom have together shown that at least the quantum information of matter absorbed by a black hole does survive, even though it must move to somewhere else. <br /><br />This landmark finding by Dr Arun K Pati of the Institute of Physics in Bhubaneswar and Professor Sam Braunstein of the University of York’s Department of Computer Science has been reported in the February 23 issue of the Physical Review Letters. The findings might not just prove to be a milestone towards resolving a long-standing paradox relating to black holes but also have significant ramifications for quantum theory and quantum information theory. <br /><br />Their research concludes that either celebrated scientist Stephen Hawking was wrong in his analysis of evaporation of blackholes, or that quantum theory, whose laws apply in the quantum world of particle physics, needs to be modified. <br /><br />Dr Pati and Prof Braunstein have been studying the limitations of quantum information theory for several years. In 2000, they had come up with their “no-deletion” principle which says that unlike class

 

[alokmohan]

Please comment on Dr.Patis work.

 

[enigma10]

ressurecting due to someone starting another black hole thread<br /><br /><img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> <em>"<font color="#333399">An organism at war with itself is a doomed organism." - Carl Sagan</font></em> </div>