Everything Leaks
Sep 5, 2020 10:34:37 #
LFingar wrote:
Helium is a component of natural gas, in varying percentages depending on the well used. Most of the world's helium comes from the US and a couple of locations in the Middle East. In the '30's we had a total monopoly on helium and would not sell it to Germany which is why the Hindenberg used hydrogen.
I knew it had to be simpler than a five mile high snorkel to get it.
Sep 5, 2020 11:31:54 #
Race cars use nitrogen to fill the tires because air contains some water that changes the pressure in the tire as it gets hot which changes the handling dynamics of the car at high speed. They use nitrogen because it is cheaper that drying the air. There is no reason a passenger car would need nitrogen filled tires except to increase the profits of the dealer that sells it. As for filling optics with argon it too is all about water. The argon is completely dry and so condensation will not occur on the elements in cold weather. The only optics I own that I know are argon filled are a pair of Zeiss binoculars. I zoom lens that changes volume could not be sealed.
Sep 5, 2020 11:57:42 #
Manglesphoto wrote:
Lol
Maybe a good reason to proof read All correspondence
Maybe a good reason to proof read All correspondence
I have seen spell checkers change things right as the email was sent. š”š”
Sep 5, 2020 11:58:51 #
LFingar wrote:
Also true of refrigerants. Older vehicles that were built with R12 in their a/c will leak when converted to R134a if the hoses are not replaced with compatable hoses since R134a molecules are smaller then R12.
Thank you I believe you just solved my truckās ac issue that my mechanic has been unable to solve!!
Sep 5, 2020 12:01:26 #
Sep 5, 2020 12:31:53 #
pquiggle wrote:
Race cars use nitrogen to fill the tires because a... (show quote)
One advantage of Nitrogen in passenger car tires is that the decreased moisture helps preserve the life of the tire pressure sensors in modern cars. Having said that, unless your car is completely maintained by the dealer, including adding air to tires periodically and performing all tire changes, the Nitrogen rarely lasts past the first tire change.
Sep 5, 2020 12:55:04 #
TriX wrote:
My worst spell checker faux pas was an email to our head of System Engineering, a guy named Diptish Data. After the spell checker finished, the salutation read: āHello Dipshitā. You canāt make this stuff up.
Eye doe nut knead know spiel chucker
Sep 5, 2020 13:16:27 #
boberic wrote:
Eye doe nut knead know spiel chucker
I agregate.
I concourse too.
Sep 5, 2020 13:23:31 #
TheShoe
Loc: Lacey, WA
JD750 wrote:
Not stamps!! Atoms!! š
Spelling miscorrector got me. š”. Thatās a good one! š I keep a list of good ones, this one will get added to the list.
Spelling miscorrector got me. š”. Thatās a good one! š I keep a list of good ones, this one will get added to the list.
Did you include M$ Word's original misspelling for "Pentium" in your list?
Sep 5, 2020 14:01:47 #
I'm aware of Nitrogen or Argon purged Binoculars, and spotting scopes, and probably some special purpose scientific optical systems. Those are sealed tubes. But I'm not aware of any Dslr or Mirrorless camera lenses that are purged with Argon Or Nitrogen. Many, especially zooms have lots of moving elements, and internal volumes inside the lens change, Some primes have floating elements & VR/IS. Sealing them to the same degree as the (relatively) simple optical tubes in Binoculars , Spotting scopes, & Oculars, would be very expensive. I have Lots of high end lenses from Canon ,Nikon & Hasselblad and have never seen one.
Have I just missed its? Which camera lenses do you know to be purged with Argon or Nitrogen?
I'm asking because I'd like to learn about that if it is true.
Thanks
Have I just missed its? Which camera lenses do you know to be purged with Argon or Nitrogen?
I'm asking because I'd like to learn about that if it is true.
Thanks
Sep 5, 2020 14:53:29 #
Doyle Thomas wrote:
I recently took a class on vacuum technology. One ... (show quote)
Ten or fifteen years ago we all had to worry about the pins in our cameras that our Compact flash cards plugged into. About four years ago we began to worry about whether our lenses were micro adjusted for our camera bodies. Next came shutter counts and wondering when our cameras were going to stop working. I resisted worrying about any of these things, but I am not sure I can let this one go. What if the argon leaks out of my lenses? Let's see; Covid, left and right wing wackos, election fraud, Lebanon, my 69th birthday coming up, and now argon leaks. I will never sleep again.
...Cam
Sep 5, 2020 15:50:16 #
In the early days of spell checkers, I was writing to colleague with the last name Bachman....and it was addressed to Batman!! We both enjoyed that one.
Sep 5, 2020 15:51:57 #
Speaking of hydrogen. . . can anyone tell me, FOR SURE, how hydrogen is produced commercially? The 2 methods I have in mind are 'cracking' methane (or other hydrocarbon molecules) into carbon & hydrogen, and electrolysis of water. Either of which would require a bit - quite a bit? - of energy. So, how can hydrogen as a fuel to replace gasoline be economically possible?
Sep 5, 2020 16:09:48 #
twowindsbear wrote:
Speaking of hydrogen. . . can anyone tell me, FOR SURE, how hydrogen is produced commercially? The 2 methods I have in mind are 'cracking' methane (or other hydrocarbon molecules) into carbon & hydrogen, and electrolysis of water. Either of which would require a bit - quite a bit? - of energy. So, how can hydrogen as a fuel to replace gasoline be economically possible?
Is the cost to create hydrogen more or less than the cost to create gasoline?
Sep 5, 2020 16:13:56 #
CamB wrote:
Ten or fifteen years ago we all had to worry about... (show quote)
Yup, I just use my camera...
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