Depending on how well youâve kept up with fire extinguisher maintenance, your portable fire extinguisher should last, essentially, forever. If youâve had the same fire extinguisher for a long time (10-12 years),one way to test its condition ) is to have it hydrostatically tested. A hydrostatic test exposes your fire extinguisher to high pressure (usually 500psi) to check the integrity of the shell.
Jingle Bells was the first song broadcast from space, in a Christmas-themed prank by Gemini 6 astronauts Tom Stafford and Wally Schirra. While in space on December 16, 1965, they sent this report to Mission Control : Gemini VII, this is Gemini VI.
Vote for this answer. It was on December 24, 1906 from Brant Rock when during a short program for Christmas, O Holy Night was played on a violin. I am leary about the answer because of the date but Wikipedia confirms it but then again disputes it. http://wiki.answers.com/Q/First_song_ever_played_on_a_radio_station. http://en.wikipedia.org/wiki/Radio_broadcasting. Vote for this answer.