HOW TO DERIVING COULOMB'S LAW FROM GAUSS'S LAW

                                      

                      

 Deriving Coulomb's law from Gauss's law

Strictly speaking, Coulomb's law cannot be derived from Gauss's law alone, since Gauss's law does not give any information regarding the curl of E (see Helmholtz decomposition and Faraday's law). However, Coulomb's law can be proven from Gauss's law if it is assumed, in addition, that the electric field from a point charge is spherically-symmetric (this assumption, like Coulomb's law itself, is exactly true if the charge is stationary, and approximately true if the charge is in motion).

The Samsung GALAXY Y Android Phone

                                                        

                                             

Samsung GALAXY Y S5360 is powered by strong processor and runs on Android 2.3 (Gingerbread) operating system. It features a 262K Colour TFT display with resolution 320 x 240 and battery capacity with 1,200mAh, talking time up to 360 minutes and stand by time up to Upto 120 hours. It has large virtual QWERTY keyboard with Quicktype by SWYPE technology to literally trace letters in a single continuous movement. It supports built-in 2MP Camera. Along with 160 MB of internal memory space, it supports up to 32 GB of external memory.

Samsung GALAXY Y S5360 is available at Rs.6990 Indian Rupees.

Bluetooth, high-speed microUSB 2.0 and Wi-Fi connectivity are other prominent connectivity features of Samsung GALAXY Y.

THE Microsoft CRM R7 2011 Unveiled in India with In-built Social Network

                                                           

Microsoft has announced the availability of CRM R7 2011 in India. CRM R7 2011 integrates social capabilities into Microsoft Dynamics CRM and further strengthens service and marketing processes for businesses. Its integration with Office 365 makes the value proposition for customers even more compelling.

Windows Store to Launch as Part of Windows 8 Beta in Feb, 2012

                                              
                                                              Windows Store to Open in February with the Beta of Windows 8

                                              

the Govt asks Google, Facebook to screen user content

                               

                               

The Indian government has asked Internet companies and social media sites like Facebook to prescreen user content from India and to remove disparaging, inflammatory or defamatory content before it goes online..[...]

Ambitious Pacific Crossing of the Sea-Gliding Robots Embark

                                     Sea-Gliding Robots Embark on Ambitious Pacific Crossing
                                   Two pairs of self-propelled oceangoing robots have begun slowly making their way across the Pacific Ocean, setting off Nov. 17 from San Francisco on an epic journey covering 33,000 nautical miles. During their 300-day trip, the robots will collect 2.25 million pieces of data, and attempt to break a world record for the longest distance ever traversed by an unmanned vehicle.

The Every Auto Accident Resulting In Injury In Great Britain, 1999-2010 (Heat Map)

                 Every Injury Auto Accident inGreat Britain, 1999-2010. IMAGE BY BBC

          
                     

THE PITUITARY GLAND FROM SCRATCH IN THE LAB Create Japanese Researchers

     

                                
The thing about growing working organs in the lab is that the whole enterprise is completely mind-blowing. Yet we just keep doing it, and so we keep blowing minds. The latest: a team of researchers at Japan’s RIKEN Center--the same group who earlier this year engineered a mouse retina that is the most complex tissue ever engineered--have now derived a working pituitary gland from mouse stem cells. 

THE MEDIA AND SOCIAL IMPACT OF THE FACE BOOK

THE MEDIA AND SOCIAL IMPACT OF THE FACE BOOK

              

WHAT IS THE FACEBOOK ?

Facebook is a social networking service and website launched in February 2004, operated and privately owned by Facebook, Inc As of July 2011, Facebook has more than 800 million active users.