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 following example shows how to check the attributes of a folder. using Windows.Storage; using System.Diagnostics; // For writing results to the Output window. // Get the app's installation folder. StorageFolder appFolder = Windows.ApplicationModel.Package.Current.InstalledLocation; // Get the folder's attributes.