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Counting backward from an arbitrary number to indicate the time remaining before some event (such as launching a space vehicle)
Answer for the clue "Counting backward from an arbitrary number to indicate the time remaining before some event (such as launching a space vehicle) ", 9 letters:
countdown
Alternative clues for the word countdown
Word definitions for countdown in dictionaries
Wikipedia
Word definitions in Wikipedia
A countdown is a sequence of backward counting to indicate the time remaining before an event is scheduled to occur. NASA commonly employs the term "T-minus" during the preparation for and anticipation of a rocket launch, and even "E-minus" for events that ...
Usage examples of countdown.
Also by Keith Douglass THE CARRIER SERIES: Carrier Viper Strike Armageddon Mode Flame-Out Maelstrom Countdown Afterburn Alpha Strike Arctic Fire Arsenal THE SEAL TEAM SEVEN SERIES: SEAL Team Seven Specter Nucflash Direct Action Firestorm Battleground To my good friend, writing critic, and advisor in all things Navy, Cyndy Mobley.
At the end of the countdown a whip antenna extended from the buoy and the UHF radio activated, transmitting the message from the Tampa to the western Pacific COMMSAT high overhead in a geosynchronous orbit.
He remained awake for the countdown that started engine number one, and made certain that the new turbopump was performing up to specs before calling for Alikhan to bring him his nightly cocoa.
He remained awake for the countdown that started engine number one, and made certain that the new turbopump was performing up to specs before calling for Alikhan to bring him his nightly cocoa.
The screen above the control surface changed to show the autodestruct countdown in progress.
But after TRANSLTR decrypted the data streams, analysts immediately recognized the sequence as a network-synchronized countdown.
But after TRANSLTR decrypted the data streams,analysts immediately recognized the sequence as anetwork-synchronized countdown.
She listened to the countdown in her earphones, imagined Clyde Sommer, the network anchor, seated at the prime desk in New York.
I watched the countdown, and the totally unimpressive lighting of the plasma torch at the rear of the long, lumpy, completely unlovely congregate of landers, orbiters, propulsion modules, reactors, solar panels.
As he listened to the countdown being announced over the loudspeakers in the VIP area, he was eager and anticipant, but not yet in awe.
The first stage had separated, and the Countdown clock was recycling for the second-stage burnout and jettison.
He would have to fire the retro-rockets manually, as Alan Shepard, the capcom in Arguello, California, sounded off the countdown.
The countdown starts, red digitals going backwards -- Colorized computer screens map out hostile weather fronts.
Pentagon-and-Kremlin countdowns, terrorist or rogue-leader nail-biters, love and pain in the postapocalyptic tundra.
The bridge gang went through individual countdowns and checklists, their voices and those from the intercom overlapping.