Mr. Smarty Pants Knows
OK in Ukraine, Negative decibels in Hawaii, Walt Whitman in Manhattan, and people in Yemen
By Mr. Smarty Pants, Fri., July 23, 2004

Negative decibel readings have been taken at Volcano National Park in Hawaii, meaning the ambient noise level is below the range of human hearing.
American colonists in the Revolutionary War era rarely went to church.
The expressions "cave in," "dry up," "that's rough," and "say what?" are uniquely American and date from at least the 1850s, when Walt Whitman heard them while strolling through lower Manhattan.
By 2050, according to the United Nations, Yemen will have more people than Russia.