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Groups > sci.physics > #712108 > unrolled thread

Re: Here you go, Apple lovers! Eat this!

Started byNomen Nescio <nobody@dizum.com>
First post2018-11-08 10:06 +0100
Last post2018-11-09 13:56 +1300
Articles 7 — 7 participants

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  Re: Here you go, Apple lovers! Eat this! Nomen Nescio <nobody@dizum.com> - 2018-11-08 10:06 +0100
    Re: Here you go, Apple lovers! Eat this! Jean-David Beyer <jeandavid8@verizon.net> - 2018-11-08 08:11 -0500
      Re: Here you go, Apple lovers! Eat this! John Hasler <jhasler@newsguy.com> - 2018-11-08 08:37 -0600
      Re: Here you go, Apple lovers! Eat this! William Unruh <unruh@invalid.ca> - 2018-11-09 16:49 +0000
        Re: Here you go, Apple lovers! Eat this! "Cybe R. Wizard" <cybe_r_wizard@WizardsTower.invalid> - 2018-11-09 15:25 -0600
          Re: Here you go, Apple lovers! Eat this! Paul <nospam@needed.invalid> - 2018-11-10 00:42 -0500
    Re: Here you go, Apple lovers! Eat this! Eric Stevens <eric.stevens@sum.co.nz> - 2018-11-09 13:56 +1300

#712108 — Re: Here you go, Apple lovers! Eat this!

FromNomen Nescio <nobody@dizum.com>
Date2018-11-08 10:06 +0100
SubjectRe: Here you go, Apple lovers! Eat this!
Message-ID<22e74d03a685164db55f9c8f9bd9bc5e@dizum.com>
In article <prfngq$j3j$1@news.mixmin.net>
Nomen Nescio <noreply@mixnym.net> wrote:
>
> After serious thinking John Hasler wrote :
> > Andy Burns writes:
> >> I'm not clear why an oscillator would be "open" to the atmosphere,
> >> whereas a barometer would need to be.
> >
> > They weren't open.  They were sealed, and most likely contained
> > either a vacuum or a specific gas.  However, helium diffuses through
> > everything at an astounding rate, and something about these
> > particular parts made them especially susceptible to small amounts of
> > helium.  It probably changed the velocity of sound inside the device
> > just enough to screw it up.  Other brands of oscillator might also
> > have been affected but if they merely shifted off frequency a bit no
> > one would have noticed.
> >
> > It's also possible that these oscillators didn't stop either, but
> > shifted frequency enough to cause the operating system to become
> > alarmed and/or confused.
>
>   I wonder how many Apple people have followed their bad oscillator
> apps off a cliff so far?
>
>   This brings up an idea for a new hack.  Get in front of a self
> driving car and open up a helium bottle.

helium rises...

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#712109

FromJean-David Beyer <jeandavid8@verizon.net>
Date2018-11-08 08:11 -0500
Message-ID<ps1cld027bv@news1.newsguy.com>
In reply to#712108
On 11/8/18 4:06 AM, Nomen Nescio wrote:
> helium rises...

So what: in a mixture of gasses, they stay mixed due to Brownian movement.

-- 
  .~.  Jean-David Beyer          Registered Linux User 85642.
  /V\  PGP-Key:166D840A 0C610C8B Registered Machine  1935521.
 /( )\ Shrewsbury, New Jersey    http://linuxcounter.net
 ^^-^^ 08:05:01 up 29 days, 16:48, 2 users, load average: 4.42, 4.26, 4.11

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#712115

FromJohn Hasler <jhasler@newsguy.com>
Date2018-11-08 08:37 -0600
Message-ID<877ehn1vpq.fsf@dhh.gt.org>
In reply to#712109
Jean-David Beyer writes:
> So what: in a mixture of gasses, they stay mixed due to Brownian
> movement.

The helium isn't mixed with the air when it comes out of the bottle.
The plume of helium will tend to rise the same way a plume of hot air
does.

However, if you direct the jet of helium under the car...
-- 
John Hasler 
jhasler@newsguy.com
Dancing Horse Hill
Elmwood, WI USA

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#712199

FromWilliam Unruh <unruh@invalid.ca>
Date2018-11-09 16:49 +0000
Message-ID<ps4dq0$me$1@dont-email.me>
In reply to#712109
On 2018-11-08, Jean-David Beyer <jeandavid8@verizon.net> wrote:
> On 11/8/18 4:06 AM, Nomen Nescio wrote:
>> helium rises...
>
> So what: in a mixture of gasses, they stay mixed due to Brownian movement.
 When it escapes it is NOT a mixture. It is pure He, and that blob
rises. Even if it is mixed the He tends to go to the top ( which is one
of the reason the earth's atmosphere has no He or H since they rise to
the top of the atmosphere and escape). Just like you are advised to
crawl in a fire because the hot air and hot combustion gases rise
because they are (only slightly) less dense than cold air. He is 1/8 the
density of air.
>

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#712214

From"Cybe R. Wizard" <cybe_r_wizard@WizardsTower.invalid>
Date2018-11-09 15:25 -0600
Message-ID<20181109152537.5e1c6930@WizardsTower>
In reply to#712199
On Fri, 9 Nov 2018 16:49:04 -0000 (UTC)
William Unruh <unruh@invalid.ca> wrote:

> He is 1/8 the
> density of air.

Thank you for that.

Cybe R. Wizard
-- 
My other computer is a HOLMES IV

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#712252

FromPaul <nospam@needed.invalid>
Date2018-11-10 00:42 -0500
Message-ID<ps5r3f$ll4$1@dont-email.me>
In reply to#712214
Cybe R. Wizard wrote:
> On Fri, 9 Nov 2018 16:49:04 -0000 (UTC)
> William Unruh <unruh@invalid.ca> wrote:
> 
>> He is 1/8 the
>> density of air.
> 
> Thank you for that.
> 
> Cybe R. Wizard

And what of Hydrogen ?

Won't anyone think of the Hydrogen ?

I was burned by Hydrogen once. And the
hydrogen explosion (a separate event), just
lifted the floor sbove my head... a little bit.
And none of my family members came running, to see
what happened. That was the strangest event
of all.

*******

Come to think of it, I got an important empirical
result there. The hydrogen did stay as a cloud
near the ceiling. When I was in the process of
"burning off the excess for safety", the container
I was working with was still evolving a tiny amount
of hydrogen. And normally, I'd burn off the hydrogen
before anything nasty happened. In that case, I
waited a little too long to tend to it, and there
was a cloud over my head (that you can't see). (The
experiment was initially done outdoors for safety,
but I decided to bring it inside to disassemble it,
on the assumption the reaction had run to completion.
Bad assumption. Bad maintenance procedure.)

Eventually, the experiments with Hydrogen... stopped.

The Tevatron results here suggested that small gases
like that, they disperse and form a uniform
concentration from top to bottom, inside the
enclosure (room, building). But mine only had
time to float to the ceiling, and wasn't all
that dispersed.

http://lss.fnal.gov/archive/2005/conf/fermilab-conf-05-635-ad.pdf

    "The tests showed that gases, more readily than
     expected, diffused through an air column in the
     direction opposing buoyancy."

https://en.wikipedia.org/wiki/Graham%27s_law

Well, that's save me buying a copy of Fluent.

    Paul

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#712154

FromEric Stevens <eric.stevens@sum.co.nz>
Date2018-11-09 13:56 +1300
Message-ID<7pm9udht4helpit8lt9rhg5rgksiuq6tka@4ax.com>
In reply to#712108
On Thu,  8 Nov 2018 10:06:47 +0100 (CET), Nomen Nescio
<nobody@dizum.com> wrote:

>In article <prfngq$j3j$1@news.mixmin.net>
>Nomen Nescio <noreply@mixnym.net> wrote:
>>
>> After serious thinking John Hasler wrote :
>> > Andy Burns writes:
>> >> I'm not clear why an oscillator would be "open" to the atmosphere,
>> >> whereas a barometer would need to be.
>> >
>> > They weren't open.  They were sealed, and most likely contained
>> > either a vacuum or a specific gas.  However, helium diffuses through
>> > everything at an astounding rate, and something about these
>> > particular parts made them especially susceptible to small amounts of
>> > helium.  It probably changed the velocity of sound inside the device
>> > just enough to screw it up.  Other brands of oscillator might also
>> > have been affected but if they merely shifted off frequency a bit no
>> > one would have noticed.
>> >
>> > It's also possible that these oscillators didn't stop either, but
>> > shifted frequency enough to cause the operating system to become
>> > alarmed and/or confused.
>>
>>   I wonder how many Apple people have followed their bad oscillator
>> apps off a cliff so far?
>>
>>   This brings up an idea for a new hack.  Get in front of a self
>> driving car and open up a helium bottle.
>
>helium rises...

Helium plumbate?
-- 

Regards,

Eric Stevens

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