Believe it or not gravity is not really a force, it is an acceleration and on Earth it is about 32 feet/sec2. This same science principle applies in decelerating devices like parachutes and parafoils. The parachute decelerates or slows down the fall of the object.
What is a .DS_Store or ._ AppleDouble file? .DS_Store files are created by OS X to store metadata about folders and files including viewing options, icon positions and color labels. ._ AppleDouble files are created by the OS X when an application adds resource data or metadata to a file on a disk whose format doesn't support resources or metadata.
The folder where your backup data is stored depends on your computer's operating system. Make sure the backup folder is included in your data-backup routine. iTunes places the backup files in these places:1  Mac 2  : The 3  .  represents your Home folder. 4  Windows XP: 5  To quickly access the Application Data folder, click Start, and choose Run. 6  Windows Vista, Windows 7, and Windows 8: 7  To quickly access the AppData folder, click Start.ake sure the backup folder is included in your data-backup routine. iTunes places the backup files in these places: 1  Mac 2  : The 3  .  represents your Home folder. 4  If you don't see Library in your Home folder, hold Option and click the Go menu.