Two gold leaves diverge owing to repulsion of charges with like sign

Usage examples of electroscope.

Someone had obviously just finished working at this station it was cluttered with datadisks, an electroscope, and the leftovers of someone's lunch.

Still holding the electroscope, Tash stepped out onto the top floor of the Infirmary.

She had seen that kind of instant replication once before, when she had looked through the electroscope in the medi-chamber.

The electroscope revealed clouds of tiny, wriggling red creatures all around her.

Taking the electroscope from Tash, Hoole confirmed that the virus clouds no longer floated in the room.

Hoole, wearing the electroscope, led the others on a twisting, turning route through the ziggurat's tunnels.

Carrying the box of electroscopes and Monk's portable laboratory, which was contained in metal cases, Doc Savage was almost across the rope before he—the load, rather—was seen from the street below.

In the newspapers also was the matter of the telephone call concerning the electroscopes which Doc Savage had made.

One tabloid had sent a squad of reporters out with an electroscope, and the leaves of the thing flew apart when they neared the first bank, indicating an invisible man.

You know what an electroscope is—two strips of thin tin foil of gold leaf, suspended from a conductor.

When an electroscope is brought into the neighborhood of a piece of radium, the leaves fly apart.

The emanations are not detected by electroscope leaves, but through the reaction of chemicals carrying an almost infinitesimal electrical current.

Later, at the house on this cliff, Monk’s electroscope told me Oxalate Smith was not only here, but had gone in and out of the house a number of times recently.

These same rays can, like X-rays, discharge an electroscope, by making the air which surrounds it a conductor.

However, instead of the usual electroscope, I used a more perfect apparatus.