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.
High-def: The first high-definition TV State of the Union broadcast was Bush's 2004 address. Postponed: The first and only postponement of a State of the Union occurred in 1986. Ronald Reagan was scheduled to deliver his address on January 28, 1986 -- the same day the Space Shuttle Challenger exploded.