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.
The text of the first page of Ronald Reagan 's first State of the Union Address, given January 26, 1982. Calvin Coolidge 's 1923 speech was the first to be broadcast on radio. Harry S. Truman 's 1947 address was the first to be broadcast on television. Lyndon B. Johnson 's address in 1965 was the first delivered in the evening. Three years later, in 1968, television networks in the United States, for the first time, imposed no time limit for their coverage of a State of the Union address.