General > General Technical Chat
Tricks of the Trade - knowledge for every day life
langwadt:
--- Quote from: IDEngineer on December 23, 2021, 11:04:21 pm ---
--- Quote from: EEVblog on December 23, 2021, 10:45:42 pm ---Don't know if it's already on here, but turning a can of compressed air upside down turns it into a handy freeze spray for detecting faulty components.
--- End quote ---
REALLY? That could be exceptionally useful....
Escaping (really, expanding) gas drops in temperature, of course, but I didn't know that inverting the can would make a difference. Must try that immediately!
--- End quote ---
when you invert it it spray liquid instead of gas, so it evaporates on the part instead of in the can
Kasper:
--- Quote from: langwadt on December 23, 2021, 11:42:01 pm ---
--- Quote from: IDEngineer on December 23, 2021, 11:04:21 pm ---
--- Quote from: EEVblog on December 23, 2021, 10:45:42 pm ---Don't know if it's already on here, but turning a can of compressed air upside down turns it into a handy freeze spray for detecting faulty components.
--- End quote ---
REALLY? That could be exceptionally useful....
Escaping (really, expanding) gas drops in temperature, of course, but I didn't know that inverting the can would make a difference. Must try that immediately!
--- End quote ---
when you invert it it spray liquid instead of gas, so it evaporates on the part instead of in the can
--- End quote ---
I've done this with 'air duster' cans marketed for cleaning computers. People were using them to get high so they added a noxious scent to it. That scent lasts a long time, transfers from surface to surface and tastes bad.
I know we are not supposed to taste our electronics. I am pretty clean and fairly neurotic about washing my hands when working with electronics but somehow it got passed my defenses.
Kasper:
--- Quote from: Kasper on December 24, 2021, 12:01:47 am ---I've done this with 'air duster' cans marketed for cleaning computers. People were using them to get high so they added a noxious scent to it. That scent lasts a long time, transfers from surface to surface and tastes bad.
I know we are not supposed to taste our electronics. I am pretty clean and fairly neurotic about washing my hands when working with electronics but somehow it got passed my defenses.
--- End quote ---
For the record, I did not huff it. I live in BC, we have much better stuff to puff out here.
Psi:
Just be aware that a small number of airdusters/compressed air cans use a different feed system inside, which does not work to get freeze spray when upside down.
(Same tech used in those spray paint cans that can spray upside down.)
Cerebus:
In the vein of "knowledge for everyday life":
When making flaky pastry, after combining the fat and the flour, chill the combined fat and flour mixture with the mixing bowl and the water you're going to add to it in the fridge for an hour before moving on to the final mixing stage. This minimises the formation of gluten when you wet the flour and makes for the lightest, crumbliest pastry.
(Not too hard to guess what I'm spending my Christmas Eve doing. :))
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version