VSS_FILE_SPEC_BACKUP_TYPE enumeration. The VSS_FILE_SPEC_BACKUP_TYPE enumeration is used by writers to indicate their support of certain backup operationsâsuch as incremental or differential backupâon the basis of file sets (a specified file or files).
Blue ice (aviation) Blue ice, in the context of aviation, is frozen sewage material that has leaked mid-flight from commercial aircraft lavatory waste systems. It is a mixture of human biowaste and liquid disinfectant that freezes at high altitude. The name comes from the blue color of the disinfectant. Airlines are not allowed to dump their waste tanks in mid-flight, and pilots have no mechanism by which to do so; however, leaks sometimes do occur.
Crystals of ice on glass. Ice is the common name for frozen water. Other liquids, such as ammonia or methane or milk could be called ice when they freeze but the name would always be 'milk ice', for instance, instead of just 'ice'. Water becomes ice when it is very cold. Liquid water freezes and becomes solid ice at a temperature of 0Â° Celsius (32Â° Fahrenheit or 273 kelvin).