The spirit of radio revealed

Utter the phrase, “Don't touch that dial” to any young whippersnapper, and you'll probably get a blank stare and a “whu-huh?” look.

Repeat the phrase to that youngster's grandparents, and prepare to hear a few stories about the good ol' days when bread was a nickel and cars were a quarter.

So why not have everyone pile into the family Edsel — “whu-huh?” — and step back in time together at the “100 Years of Radio” exhibit at Bethlehem's National Museum of Industrial History?

Find out about early radio days and tune into this magical display highlighting how electromagnetic waves were/are harnessed and transformed into broadcast sound.

Artifacts from radio pioneers including Bethlehem Radio Corporation, Bell Labs, and Lehigh Valley's WKAP (the “Good Times, Great Oldies” station) are set up for show-and-tell. Also, you can listen to audio samples of early broadcasts, sound effects and amateur messaging operators' first attempts to communicate with founding tools.

NMIH is at 602 E 2nd St. Bethlehem.

Recurring exhibit open though Nov 3., Wed.-Sun. 10 a.m. to 5 p.m.

Cost: Free to children under 6;

$9, students; $12, adults; $11, seniors.

More info and details: NMIH.org or 610-694-6644.