Chronoscope

"He'd used a device he called a chronoscope to search the history of Earth. ❋ Unknown (2003)

The story was about a machine called the chronoscope, which had the power to view the past anywhere in the world, and the efforts of three scientists to wrest the device from strict research limits set by the government. ❋ Unknown (2010)

Consequently, logically, his invention had to be referred to as a chronoscope if the exact name was to be reliable (from Greek skopein = to see, in contrast to Greek graphein = to write). ❋ Unknown (2010)

The chronoscope is supposed to fill a five-story building, for ❋ Asimov, Isaac (1990)

Maybe they're not deliberately holding out on a chronoscope they've got. ❋ Asimov, Isaac (1990)

"You said you didn't tab me on the chronoscope, Araman." ❋ Asimov, Isaac (1990)

"Just this: I sent the details of the portable chronoscope off to half a dozen of my regular publicity outlets." ❋ Asimov, Isaac (1990)

Now what do you suppose would happen if we let news of a home chronoscope get out? ❋ Asimov, Isaac (1990)

But I may be able to find out enough to tell you whether the government is deliberately suppressing research by chronoscope. ❋ Asimov, Isaac (1990)

Why had he allowed himself to grow so careless as to permit the fellow to guess that he was thinking in terms of a chronoscope of his own. ❋ Asimov, Isaac (1990)

The original invention of the chronoscope was by Sterbinski-you see, I know that much - and it was well publicized. ❋ Asimov, Isaac (1990)

"Is that the Sterbinski who invented the chronoscope?" ❋ Asimov, Isaac (1990)

"And your chronoscope doesn't go back more than a hundred twenty-five years or so, does it?" ❋ Asimov, Isaac (1990)

I had envisioned a chronoscope used for research purposes. ❋ Asimov, Isaac (1990)

As for the chronoscope, your delvers into the dead past will get tired soon enough. ❋ Asimov, Isaac (1990)

Uniformly, as I have shown you, they did not make use of the chronoscope. ❋ Asimov, Isaac (1990)

If the chronoscope becomes the terror of a few politicians, it's a price that must be paid. ❋ Asimov, Isaac (1990)

What if you focus the chronoscope in the past of one-hundredth of a second ago? ❋ Asimov, Isaac (1990)

You saw the way my wife reacted to the news of a chronoscope in the basement. ❋ Asimov, Isaac (1990)

But the historian kept his balance and said, "Oh, no, there must be a chronoscope." ❋ Asimov, Isaac (1990)