"Of course!" Henry was bubbling with delight. "That's why I call them my X-ray eyeglasses. You can see through anything with them." He took the glasses from the professor. Again leveled them at the nudist colony.
Then, giggling:
"Doesn't that blonde girl have the cutest—"
"Henry!"
"Oh, all right." The little man returned the binoculars to his partner, who studied them with interest.
"Just what principle do these things work on, Henry?" he asked curiously.
Henry beamed. His goatee was at its jauntiest, most confident angle. The light of triumph played in his eyes.
"Really, Joseph, it's quite simple," he proclaimed. "There are lots of rays that go through anything, you know, except maybe lead. So I just developed a special glass that translated those rays into images, instead of just using the light rays. It was easy. The only thing you have to be careful of is to focus real close, because otherwise you'll look right through the thing you want to see—"
"Simple!" choked the scientist. "Easy! Henry, I hope you kept complete notes this once." He raised the glasses again. Studied a signboard on the nearby road.
"Oh, yes, I've got good notes, Joseph—"