And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
Saturday, September 1, 2018
Liquid Nitrogen and hot water experiment nearly gone very wrong (repost from earlier, which didn't format correctly)
I worked for a local packaged gas company in Portland, Oregon and when we would catch a rat we would pour out some liquid Nitrogen and throw the rat in, retrieve it and throw it up in the air and when it landed would shatter into hundreds of pieces
As a Jet Mechanic, I know that $#!* is Nothing to Play Around with... Sometimes We use it to Shrink Parts for Interference Fits, and there is a kind of semi-permanent Hydraulic Fittings that Actually Expand in that Cryogenic Temperature- You Dip it in the N2, Slip it on the Tube, and when it Warms up, is essentially Crimped On.
Remember the Congressman Raving about the Air Force "spending $75 for a pair of Needle-Nose Pliers that should cost $4"? Well, the Line Item was for the Snap-On brand Nickel-Alloy Pliers with thick Insulation on them, for just that Work. At Retail, I paid $95 for Mine, maybe 30 Years Ago... Cheap Pliers would first Brake Apart, and the Handles would be Frozen to your Fingers.
I worked for a local packaged gas company in Portland, Oregon and when we would catch a rat we would pour out some liquid Nitrogen and throw the rat in, retrieve it and throw it up in the air and when it landed would shatter into hundreds of pieces
ReplyDeleteNearly? They destroyed the ceiling!
ReplyDeleteAs a Jet Mechanic, I know that $#!* is Nothing to Play Around with... Sometimes We use it to Shrink Parts for Interference Fits, and there is a kind of semi-permanent Hydraulic Fittings that Actually Expand in that Cryogenic Temperature- You Dip it in the N2, Slip it on the Tube, and when it Warms up, is essentially Crimped On.
ReplyDeleteRemember the Congressman Raving about the Air Force "spending $75 for a pair of Needle-Nose Pliers that should cost $4"? Well, the Line Item was for the Snap-On brand Nickel-Alloy Pliers with thick Insulation on them, for just that Work. At Retail, I paid $95 for Mine, maybe 30 Years Ago... Cheap Pliers would first Brake Apart, and the Handles would be Frozen to your Fingers.