An Experiment

[Renauda]

@taiwan_girl

Might make a difference on racing car tires but on a personal transportation vehicle, nothing at all. I agree it’s a scam.

[George K]

@taiwan_girl said in An Experiment:

I think that is a scam.

The only advantage for non-racing car drivers is that the larger molecule, theoretically, leaks out of the surface slower, allowing the tire to keep full inflation longer.

OTOH, you have to wonder how much of difference replacing 21% of the gas in a tire with pure N2 really makes.

[Copper]

@taiwan_girl said in An Experiment:

@Copper said in An Experiment:

I believe Costco now uses nitrogen to fill the tires it sells.

I think that is a scam. A scientist friend told me that the size difference in the molecule in no way justify the increased cost to fill a wheel.

I hate to judge without all the facts, but it sounds like your scientist friend does not understand. Nitrogen in the tires doesn't guarantee no leaks, but it does change the nature of leaks depending on several physical conditions. In general, it will not leak as fast.

Nitrogen does not behave the same as plain old atmospheric air. I'm sure we can all agree on that.

For one thing, I doubt anyone has proposed to carry out corporal punishment with plain old air.

Is Nitrogen in tires worth the trouble or expense? Sometimes.

I don't think that Costco charges extra for nitrogen, where is the scam?

AAA likes nitrogen

https://www.aaa.com/autorepair/articles/top-4-myths-vs-facts-about-using-nitrogen-to-inflate-car-tires

[taiwan_girl]

@Copper said in An Experiment:

I don't think that Costco charges extra for nitrogen, where is the scam?

Agree. If there is no extra cost, then for sure not a scam. But I have hear that a lot of places charge extra to fill with nitrogen.

Using a bicycle pump and arm power is free also if you are not near a Coscto. LOL

[Copper]

@taiwan_girl said in An Experiment:

But I have hear that a lot of places charge extra to fill with nitrogen.

A few months ago, I stopped at a gas station in Denver and paid $2 to fill my tires, not with nitrogen, with plain old air. The pump took a credit card.

[George K]

@Copper said in An Experiment:

I hate to judge without all the facts, but it sounds like your scientist friend does not understand. Nitrogen in the tires doesn't guarantee no leaks, but it does change the nature of leaks depending on several physical conditions. In general, it will not leak as fast.

Nitrogen does not behave the same as plain old atmospheric air. I'm sure we can all agree on that.

No, we can't. Atmospheric air is 79% nitrogen. Perhaps not "the same," but darn close. The difference in molecular weight (14 vs 16) is small. So a small difference in 21% of the sample. Perhaps the water vapor in atmospheric air makes a difference, but see below...

Is Nitrogen in tires worth the trouble or expense? Sometimes.

When?

AAA likes nitrogen

https://www.aaa.com/autorepair/articles/top-4-myths-vs-facts-about-using-nitrogen-to-inflate-car-tires

Er..

• both oxygen and nitrogen escape at the same rate.
• nitrogen does not completely eliminate temperature-related pressure changes under normal driving conditions
• Even tires filled with nitrogen still require regular pressure checks to identify slow leaks
• Compressed air systems at most tire shops have moisture separators that limit the amount of water vapor in the compressed air supply. Limiting water vapor protects the tires and wheels as well as a shop's expensive air-powered tire mounting and installation tools.

[Renauda]

Nitrogen escapes from tires just as fast as regular air does if the bead fails when temperatures get below -25 C. Single biggest problem next to dead batteries with cars here in winter.

[Axtremus]

@George-K said in An Experiment:

The only reason this one has taken so long is because the executioners were unable to find a vein for lethal injection. They spent two hours.

Should've called me.

Do you charge by the hour or by piece?
Can they afford you?

Also curious ... do you have to be certified to carry out the procedure to fulfill a death sentence? If so, what is that certification?

[George K]

@Axtremus said in An Experiment:

Do you charge by the hour or by piece?

Yes

Can they afford you?

No

Probably, now that I'm retired and I could use a little walking-around cash.

Also curious ... do you have to be certified to carry out the procedure to fulfill a death sentence? If so, what is that certification?

No clue.

[Copper]

@George-K said in An Experiment:

Is Nitrogen in tires worth the trouble or expense? Sometimes.

When?

When the expense is zero.
When the trouble is zero.
See the AAA for more.

@George-K said in An Experiment:

Perhaps not "the same,"

Yes, exactly.

[Mik]

Well, he is a gas passer. Alabama needs them.

[bachophile]

Why the hell don’t they put in a central line (femoral, jugular) if they can’t get a peripheral vein. If u put local in the puncture site it won’t be painful. That’s what I would do if they paid me to be the professional potassium injector.
I think $10K per execution would be fair.

[Jolly]

I think they have determined K is cruel and unusual?

[George K]

@Jolly said in An Experiment:

I think they have determined K is cruel and unusual?

If given alone, I can see it being cruel and unusual.

We used to joke about the "Texas penal anesthetic":

• Pentothal
• Pancuronium
• Potassium

Effective, reliable, and always successful - if you can find a vein.

@bachophile said in An Experiment:

Why the hell don’t they put in a central line

The problem is finding a practitioner who would do that. Even finding a doc to administer whatever cocktail you choose can be hard, even if you find a vein.

Then, I'm sure some attorney would argue that putting in an IJ line is "cruel and unusual." At the university, we always put them in with the patient awake.

ETA: I had a classmate who offed himself with an injection of KCl...

[Copper]

Just send them into a doctor's office without a mask, during covid season.

That should do it.

[Jolly]

@Copper said in An Experiment:

Just send them into a doctor's office without a mask, during covid season.

That should do it.

Make sure...Make them take the jab, too!