OT: Nitrogen filled tires

[ChairmanOfTheBored]

A mixed gas like air is
all at the same bulk pressure but for calculations you can split it
into equivalent partial pressures of its constituents.

That doesn't change the REAL pressure value.

Also, asswipe, I never shouted. Get over yourself.

 

[ChairmanOfTheBored]

Florida had another bumper crop of potholes, this year.

Hahaha... "bumper crop"... how funny.

 

[ChairmanOfTheBored]

Don't weasel. It's undignified.

**** off, asswipe. You refusing to admit the non-feasibility of this
retarded system, whether your claim "It would work" is true or not, is
what is undignified in this thread.

 

[ChairmanOfTheBored]

No, you've used that one already. A word-for-today can only be used
once.

However a "New word for the day" fully supplants the old one, and is
100% acceptable... whereas you design idea is utter garbage!

 

[ChairmanOfTheBored]

On Mon, 15 Oct 2007 18:56:18 -0700, ChairmanOfTheBored

On Mon, 15 Oct 2007 17:00:59 -0700, John Larkin

Macon?? That's almost as good as having "...bored..." do it ;-)

No, MissingProng can't do math at all. He's entirely number-phobic.



You're an idiot. I can do the math without even making a single actual
calculation.

That's very Zen: doing the math without doing the math.

It is 100% obvious that it is a futile endeavor, and then
there are several other factors that make it a prohibitive venture.

The term for today is:

UNSPRUNG WEIGHT

You know... that thing that one does NOT want to add to their
suspension assembly, particularly at the wheel... ;-]

Gosh, why do people have wheel covers?

John

Generally found on NON-performance autos.

Is wheel bling found on performance autos?

(ones people don't care about handling or unsprung weight)

How many care? ISTM that properly inflated tires is more important
for "performance" than bling.

Also,often found on the side of the road after passing a pothole. ;-)

As opposed to Dimbulb in this argument (found in the middle of the
road with John's tire marks up his backside).

Nice CELL CPU post in abse for you KeithStainTard. You know... that
CPU that you said did not do parallel processing.

You're an idiot.

 

[Guy Macon]

Well, they certainly could - just shape the blades like this:

(end-on view)
_
\ -- _
\ -- _
Air ---> \ -- _
/ _ --
/ _ --
/_--

Kinda like little scoops.

Also known as cup anemometers. One of the URLs below
describes one that has been in operation since 1846.

http://en.wikipedia.org/wiki/Anemometer
http://www.cupanemometer.com/products.htm
http://www.arm.ac.uk/history/instruments/Robinson-cup-anemometer.html
http://www.windspeed.co.uk/ws/index.php?option=displaypage&Itemid=48
http://en.wikipedia.org/wiki/Savonius_wind_turbine
http://www.biral.co.uk/met/wind/firstclass.htm
http://en.wikipedia.org/wiki/Savonius_wind_turbine
http://www.awea.org/faq/vawt.html

 

[Guy Macon]

Perhaps you have seen the TV show "TMZ" or the web site TMZ.COM?

No, in fact, I've never heard of it. But you're talking cable,
not real TV, right? ;-)

[explanation snipped]

The explanation you snipped gave the broadcast (that's over the
air, not cable) channel and times. Not my cup of tea, but if
that's the sort of thing person likes, this is a fine example
of it.

 

[Guy Macon]

Hollywood is, as usual, self-absorbed, self-referential,
and pretty much devoid of imagination, taste, or integrity.

The way you word it, you make that sound like a bad thing.

 

[John Larkin]

On Mon, 15 Oct 2007 16:37:01 -0700, John Larkin


On Mon, 15 Oct 2007 16:32:10 -0700, Jim Thompson


On Mon, 15 Oct 2007 16:23:39 -0700, John Larkin






[snip]

No,he's right;those wheel spinners use low friction bearings,and any
crud will stop them.

So, you won't do the math either.

John





Math without practical experience is useless.

Practical experience without math is amateur guesswork.

John

John, I think you've got yourself out on a limb, on the wrong side of
the saw ;-)

I think it's you who has to put some numbers to it.

...Jim Thompson

I already did. And Guy confirmed it.

John

Macon?? That's almost as good as having "...bored..." do it ;-)

No, MissingProng can't do math at all. He's entirely number-phobic.

I think you need a pendulum of _substantial weight_ so that it
_doesn't rotate, but acts as a "pinning" point for the piston(s).

That could work, too. But we'd need a small amount of energy per day.
I'm guessing 1 kilojoule would be plenty - and easy to get - based on
the performance of a little cigaret-lighter-plugin compressor I have.
The bling-spinner idea was cute, and would be a nice sales gimmick.

What
weight does it take for a 1/2" piston working against 30PSI, and what
are the respective arm lengths?

Why 1/2"? The amount of air we'd need is tiny.

I'm not going to design it, much less build one to prove something to
rude strangers, but the numbers seem well in the ballpark of
feasibility. That's the first step in engineering, a quick numerical
estimate to see if an idea has a chance of working. This one does.

John

Low tire pressure alarms will become standard and manditory in a year or
two.
They already are stock on high end vehicles.


They are ridiculously more cost effective than zillions of pumps that
does nothing for virtually all of their lifetimes.

But pumps fill tires, and alarms don't.

And a small pump would work pretty much continuously.

John

 

[John Larkin]

[snip]

Nobody would buy either one. But that doesn't make the ideas much less
interesting. You can never develop new stuff if you whack-a-mole every
idea as soon as it pops up.

John

From what you've posted,that guy patented your concept 10 years ago,and
AFAIK,no one has seen any prototype proving it would work.

Which doesn't say much for the present competence of the USPTO.

"Reduction to practice" is supposed to be one of the criteria for
award.

Leo Szilard was granted a patent on the A-bomb. In 1932.

Of course, that was in Britain.

I wonder what would have happened if they had the bomb in 1939.

John

 

[Richard The Dreaded Libertarian]

On Oct 16, 12:51 pm, Jim Thompson <To-Email-Use-The-Envelope-I...@My-

[snip]
Nobody would buy either one. But that doesn't make the ideas much less
interesting. You can never develop new stuff if you whack-a-mole every
idea as soon as it pops up.

From what you've posted,that guy patented your concept 10 years ago,and
AFAIK,no one has seen any prototype proving it would work.

Which doesn't say much for the present competence of the USPTO.

"Reduction to practice" is supposed to be one of the criteria for
award.

Leo Szilard was granted a patent on the A-bomb. In 1932.

Of course, that was in Britain.

I wonder what would have happened if they had the bomb in 1939.

Well, if they'd had ballistic missiles, they'd have probably cratered
Berlin, and the Holocaust and WWII would never have happened. Well,
maybe on the Japan side, but in that case they'd probably have been
happy to crater Tokyo for us.

Cheers!
Rich

 

[Jim Yanik]

[snip]

Nobody would buy either one. But that doesn't make the ideas much
less interesting. You can never develop new stuff if you
whack-a-mole every idea as soon as it pops up.

John

From what you've posted,that guy patented your concept 10 years
ago,and AFAIK,no one has seen any prototype proving it would work.

Which doesn't say much for the present competence of the USPTO.

"Reduction to practice" is supposed to be one of the criteria for
award.

Leo Szilard was granted a patent on the A-bomb. In 1932.

doesn't mean the 1st one made would work.
Heck,North Korea recently failed on their first attempt,and that's after
knowing its been done already,having trained nuclear scientists and
techs,and having much of the data published.

I wonder what would have happened if they had the bomb in 1939.

John

Delivery might have been a problem;at that time,Britain lacked the aircraft
and escorts capable of reaching into Germany.(while under attack from Nazi
AD fighters.)The odds of the plane carrying the A-bomb surviving long
enough to get over target would have been very low.

IF they could deliver it,Berlin would be gone.
Whether the Nazi war machine woudl keep on after that is anybody's guess.

 

[Jim Yanik]

But pumps fill tires, and alarms don't.

And a small pump would work pretty much continuously.

Not really;normally,tires don't lose that much pressure daily.

Then there's the problem of getting/keeping the correct tire pressure under
varying tire temperatures.If your auto-pump continuously pumps,you could
over-pressure your tires(when they heat up) and they would wear too
fast,particularly in the center of the tread.

 

[Richard Henry]

[snip]
Nobody would buy either one. But that doesn't make the ideas much less
interesting. You can never develop new stuff if you whack-a-mole every
idea as soon as it pops up.
John
From what you've posted,that guy patented your concept 10 years ago,and
AFAIK,no one has seen any prototype proving it would work.
Which doesn't say much for the present competence of the USPTO.
"Reduction to practice" is supposed to be one of the criteria for
award.

Leo Szilard was granted a patent on the A-bomb. In 1932.

Of course, that was in Britain.

I wonder what would have happened if they had the bomb in 1939.

It's unlikely any government would have funded a Manhattan Project
before the war started. However, most of the theoretical work was
complete by 1935 or so, and only took unlimited funding to complete a
weapon. It was several years (late 30's) before neutron activation
and congrol experiments had progressed far enough to make it plain
that uranium was likely to be the best natural weapon material.

In any event, if Britain had developed the bomb first without US help,
we would probably all be speaking Runnian now.

 

[John Larkin]

Not really;normally,tires don't lose that much pressure daily.

Then there's the problem of getting/keeping the correct tire pressure under
varying tire temperatures.If your auto-pump continuously pumps,you could
over-pressure your tires(when they heat up) and they would wear too
fast,particularly in the center of the tread.

It would have a regulator, of course.

John

 

[ChairmanOfTheBored]

On Mon, 15 Oct 2007 16:48:33 -0700, Jim Thompson


On Mon, 15 Oct 2007 16:37:01 -0700, John Larkin


On Mon, 15 Oct 2007 16:32:10 -0700, Jim Thompson


On Mon, 15 Oct 2007 16:23:39 -0700, John Larkin






[snip]

No,he's right;those wheel spinners use low friction bearings,and any
crud will stop them.

So, you won't do the math either.

John





Math without practical experience is useless.

Practical experience without math is amateur guesswork.

John

John, I think you've got yourself out on a limb, on the wrong side of
the saw ;-)

I think it's you who has to put some numbers to it.

...Jim Thompson

I already did. And Guy confirmed it.

John

Macon?? That's almost as good as having "...bored..." do it ;-)


No, MissingProng can't do math at all. He's entirely number-phobic.


I think you need a pendulum of _substantial weight_ so that it
_doesn't rotate, but acts as a "pinning" point for the piston(s).


That could work, too. But we'd need a small amount of energy per day.
I'm guessing 1 kilojoule would be plenty - and easy to get - based on
the performance of a little cigaret-lighter-plugin compressor I have.
The bling-spinner idea was cute, and would be a nice sales gimmick.



What
weight does it take for a 1/2" piston working against 30PSI, and what
are the respective arm lengths?


Why 1/2"? The amount of air we'd need is tiny.

I'm not going to design it, much less build one to prove something to
rude strangers, but the numbers seem well in the ballpark of
feasibility. That's the first step in engineering, a quick numerical
estimate to see if an idea has a chance of working. This one does.

John

Low tire pressure alarms will become standard and manditory in a year or
two.
They already are stock on high end vehicles.


They are ridiculously more cost effective than zillions of pumps that
does nothing for virtually all of their lifetimes.

But pumps fill tires, and alarms don't.

And a small pump would work pretty much continuously.

I say again. It is a fucking RETARDED IDEA!


Put a pump in a shock tower, fill a surge tank once every few days, and
have air on demand whenever needed.

We don' need no stinking miniature dysfunctional pumps.

Just so you know, a surge tank IS required for any of your hair brained
ideas to work, as well as my 100% viable idea.

 

[Rich Grise]

It would have a regulator, of course.

Oh, dear, I see a snag. To temperature-compensate the regulator, you'd
have to measure the temperature _inside_ the tire.

Thanks,
Rich

 

[Jim Yanik]

It would have a regulator, of course.

John

One that accounts for tire temperature?
more complexity,more chance for failure. More cost,too.

Add too much stuff to it,and it sooner becomes impractical.

 

[ChairmanOfTheBored]

doesn't mean the 1st one made would work.
Heck,North Korea recently failed on their first attempt,and that's after
knowing its been done already,having trained nuclear scientists and
techs,and having much of the data published.

Yes. I find it quite funny.

They failed so miserably that they are finally giving up on their
conquering endeavors, and want to "make peace" now.

Hunger can do that to a man... and a nation.

 

[ChairmanOfTheBored]

Oh, dear, I see a snag. To temperature-compensate the regulator, you'd
have to measure the temperature _inside_ the tire.

No you would not. An IR sensor pointed at the inside wall of the
OUTSIDE of the tire would work just fine, and the settle time difference
would be negligible for these purposes. Also, a simple inner rim
measurement would be even more accurate as metal conducts very well, and
would translate nearly the same temp as the air in the tire.

That still does not discount the FACT that a pump ON the wheel is a
bad idea.