Friday, August 27, 2010
Massive solar storm to hit Earth in 2012
Sunday, August 22, 2010
Mutual Funds
Fund Switching in ULIPs
INSURANCE
The damage may or may not occur, which means, when we use the word risk, there is an element of uncertainty. Insurance guards against such uncertainties, properties and people are exposed to. It therefore goes without saying that if there is no risk, there is no need for insurance. In other words, it is an element of uncertainty which creates the need for insurance. Risks cannot be prevented or avoided; so they are transferred to an insurance company. By availing insurance, the individual transfers his responsibility of continuous generation of income even in the event of his death to an insurance company.Only economic consequence can be insured. Examples of non-economic losses are love and affection, sentimental attachment and creative abilities.
Thursday, August 12, 2010
One of world's most complex math problems solved by an Indian
Computer scientist Vinay Deolalikar claims to have solved maths riddle of P vs NP - one of the world's most complex and intractable mathematical problems. Deolalikar, said that he has proven that P is not equal to NP. The solution, if right, would earn him 1 million dollars as prize money. P vs NP is one of the seven millennium problems set out by the Massachusetts-based Clay Mathematical Institute as being the "most difficult" to solve. Deolalikar claims to have proven that P, which refers to problems whose solutions are easy to find and verify, is not the same as NP, which refers to problems whose solutions are almost impossible to find but easy to verify.
For instance, calculating how to accommodate 400 students in 100 university rooms. The Clay Mathematical Institute says, "To complicate matters, the Dean has provided you with a list of pairs of incompatible students, and requested that no pair from this list appear in your final choice.
"This is an example of what computer scientists call an NP-problem, since it is easy to check if a given choice of one hundred students proposed by a co-worker is satisfactory (i.e., no pair taken from your co-worker's list also appears on the list from the Dean's office), however the task of generating such a list from scratch seems to be so hard as to be completely impractical.
"Indeed, the total number of ways of choosing one hundred students from the four hundred applicants is greater than the number of atoms in the known universe. "Thus no future civilisation could ever hope to build a supercomputer capable of solving the problem by brute force; that is, by checking every possible combination of 100 students.
http://science-tech-update.blogspot.com/2011/04/one-of-worlds-most-complex-math.htmlWednesday, August 11, 2010
Abandon Earth or face extinction: Hawking
Professor Hawking has warned that mankind was entering "an increasingly dangerous period of our history". "Our population and use of the finite resources of planet Earth and growing exponentially along without technical ability to change the environment for good and ill. But our genetic code carries selfish and aggressive instincts that were a survival advantage in the past. It will be difficult enough to avoid disaster in the next 100 years let alone the next thousand or a million. Our only chance of long term survival is not to remain on Earth but to spread into space.
http://science-tech-update.blogspot.com/2011/04/abandon-earth-or-face-extinction.html