failure envelope
21writing — /ruy ting/, n. 1. the act of a person or thing that writes. 2. written form: to commit one s thoughts to writing. 3. that which is written; characters or matter written with a pen or the like: His writing is illegible. 4. such characters or… …
22Nixie tube — The ten digits of a GN 4 Nixie tube. A nixie tube is an electronic device for displaying numerals or other information. The glass tube contains a wire mesh anode and multiple cathodes. In most tubes, the cathodes are shaped like numerals.… …
23HIV vaccine — An HIV vaccine is a hypothetical vaccine against HIV, the etiological agent of AIDS. As there is no known cure for AIDS, the search for a vaccine has become part of the struggle against the disease.The urgency of the search for a vaccine against… …
24List of conspiracy theories — The list of conspiracy theories is a collection of the most popular unproven theories related but not limited to clandestine government plans, elaborate murder plots, suppression of secret technology and knowledge, and other supposed schemes… …
25Hot air ballooning — is the activity of flying hot air balloons. Attractive aspects of ballooning include the exceptional quiet (except when the propane burners are firing), the lack of a feeling of movement, and the bird s eye view. Since the balloon moves with the… …
26The Amazing Race — sometimes referred to as TAR, is a reality television game show in which teams of two people (with one exception), who have some form of a preexisting personal relationship, race around the world in competition with other teams. Contestants stri …
27Primary biliary cirrhosis — Classification and external resources Micrograph of primary biliary cirrhosis showing bile duct inflammation and injury. H E stain …
28Bounce message — A bounce message, or (failed) Delivery Status Notification (DSN) message, aka Non Delivery Report/Receipt (NDR), Non Delivery Notification (NDN), or simply a bounce is an automated electronic mail message from a mail system informing the sender… …
29Non delivery report — In the Internet s standard e mail protocol SMTP, a bounce message, also called a Non Delivery Report/Receipt (NDR), a (failed) Delivery Status Notification (DSN) message, a Non Delivery Notification (NDN) or simply a bounce, is an automated… …
30Halogen lamp — A halogen lamp is an incandescent lamp in which a tungsten filament is sealed into a compact transparent envelope filled with an inert gas, plus a small amount of halogen such as iodine or bromine. The halogen cycle increases the lifetime of the… …
