In an unprecedented move, seconds after the countdown was halted, NASA cut its feeds to the networks and all 4 channels were left with the omnipresent long lens view of the space shuttle sitting idle on its launch pad.
While Richardson and Pitov were making their last-minute rounds, the countdown progressed past minus one hour, and at minus twenty minutes all the overhead lights went off and the small instrument operators' lights came on.
The countdown was just beyond two hours five minutes.
To the statesmen, this is a question of who is first and who is second, and perhaps who will control the spaceways," he said after describing the countdown in process.
The technician who took his place--you don't stop a countdown like that for a heart attack--checked his work and found an error that would have misfired the thing.
The next night, the big news was the countdown in process at Canaveral to put a functioning "dome" on the moon.
Or, as the countdown reaches zero, one hour from now, will the dome tear through the atmosphere of Earth in man's first real step to the stars successfully?
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "countdown" in a variety of sentences. We hope that you will now be able to make sentences using this word.