Significant increase in birth rates.

Shock wave from supersonic travel.

Rapid growth due to prosperity.

"Boom Boom" was the entry in the Eurovision Song Contest 1978, performed in Danish by Mabel.

"Boom Boom" was the entry in the Eurovision Song Contest 1978, performed in Danish by Mabel.

Portable stereo system, loud music.

Portable music players with speakers.

Handles microphone on film sets.

On an airplane or helicopter, a spar that connects tail surfaces to a fuselage.

Extension of the bowsprit forward.

Arm holding microphone, adjustable positioning.

(nautical) A line or piston system on a sailboat used to exert downward force on the boom and thus control the shape of the sail; a martingale.