Democratic Sentinel, Volume 19, Number 49, Rensselaer, Jasper County, 13 December 1895 — Voice Heard Eighteen Miles. [ARTICLE]

Voice Heard Eighteen Miles.

Eighteen miles is the longest distance on record at which a man’s voice lias been heard. This occurred in the Grand Canon of the Colorado, where one man shouting the name of “Bob” at one end, his voice was plainly heard at the oilier end, which is eighteen miles away. Lientenant Foster, on Perry’s third Arctic expedition, found that he could converse witli with a man across the harbor of Port Bowen, a distance-of (5,808 feet, or about one mile and a quarter, and Sir John Franklin said that he conversed with ease at a distance of more than a mile. Dr.

Youag records that at Gibraltar the fcaama voice has been beard at a distance of tea miles. Sound has remarkable force mb water, (’alladon, by experiaoenU as the lake of tieoeva. estimated that a bell safemerged io the sea might be heard at a distance of more titan sixty miles. Krsokliu says that he heard the striking together of two stones in the water half a mile away. Over water or a surface of ice sound is propagated with great clearness and strength, says the Oil (Sty Derrick. l)r. Hutton relates that oa a*f lie* part of the Thames, near Uiebea, he could bear h person retd distinctly at the distance of 140 feet, while on the bed the the same could be only heard at aev-enty-six feet. Professor TyndaM, whoa on Mont Blanc, found the report of a pistol no louder thau the pop of a champagne bottle. Persons in a balloon-can hear voices from the earth a long time after they themselves are inaudible to people below.