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.
A song called Reach for the Stars will make its debut, appropriately, from space. NASA plans to broadcast the tune, written by rapper and songwriter will.i.am, from its Curiosity rover, newly landed on the surface of Mars. Though Curiosity has no speakers, it will transmit the song via radio waves back to Earth to be received at 1 p.m. PDT (4 p.m.