The Gravity app isn't incredibly accurate, but it's better than no scale at all. One of the first problems he and his team faced was that Apple's 3D Touch API measures weight on a custom scale from 0.00 to maximum possible force, with 1.00 as the average touch. They solved this by asking users to calibrate the app using objects of a known weight they would have to hand (US nickels).
The SID (Security IDentifier) is a unique ID number that a computer or domain controller uses to identify you. It is a string of alphanumeric characters assigned to each user on a Windows computer, or to each user, group, and computer on a domain-controlled network such as Indiana University's Active Directory.
The Insert key (often abbreviated Ins) is a key commonly found on computer keyboards. It is primarily used to switch between the two text-entering modes on a personal computer (PC) or word processor: overtype mode, in which the cursor, when typing, overwrites any text that is present in the current location; and.