Since 2006, anyone age 13 and older has been allowed to become a registered user of Facebook, though variations exist in the minimum age requirement, depending on applicable local laws.Facebook may be accessed by a large range of desktops, laptops, tablet computers, and smartphones over the Internet and mobile networks.Additionally, users may join common-interest user groups organized by workplace, school, hobbies or other topics, and categorize their friends into lists such as "People From Work" or "Close Friends". Additionally, users can complain about or block unpleasant people.Because of the large volume of data that users submit to the service, Facebook has come under scrutiny for its privacy policies.
They range in age from 29 to 42, and they typically have led the pack.
MIT graduate, pilot who was part of Operation Iraqi Freedom and a commander of the 461st Flight Test Squadron, Indian-origin Raja Chari is one of the 12 astronauts picked from 18,000 applicants by NASA American space agency NASA named 12 astronauts on Wednesday, including an Indian-American, from a record number of over 18,000 applicants, who will be trained for missions into Earth orbit and to deep space.
The astronaut class of 2017 includes doctors, scientists, engineers, pilots and military officers from Anchorage to Miami and points in between.
Among them is 39-year-old Indian-American Lt Col Raja "Grinder" Chari, a commander of the 461st Flight Test Squadron and the director of the F-35 Integrated Test Force at Edwards Air Force Base in California.
Chair hails from Waterloo, Iowa, and has earned a Master's degree in aeronautics and astronautics from MIT and graduated from the US Naval Test Pilot School.