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OT proposed - Want to Breathe on Mars? A Sea-Dwelling Bacteria Could Make That Possible.

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  OT proposed - Want to Breathe on Mars? A Sea-Dwelling Bacteria Could Make That Possible. a425couple <a425couple@hotmail.com> - 2018-06-18 10:03 -0700
    Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican a425couple <a425couple@hotmail.com> - 2018-06-18 10:15 -0700
      Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican J. Clarke <jclarke.873638@gmail.com> - 2018-06-19 19:10 -0400
        Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican Robert Carnegie <rja.carnegie@excite.com> - 2018-06-19 16:17 -0700
        Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican Lynn McGuire <lynnmcguire5@gmail.com> - 2018-06-19 19:19 -0500
          Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican djheydt@kithrup.com (Dorothy J Heydt) - 2018-06-20 00:46 +0000
            Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican Lynn McGuire <lynnmcguire5@gmail.com> - 2018-06-19 20:48 -0500
              Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican Dimensional Traveler <dtravel@sonic.net> - 2018-06-19 19:26 -0700
                Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican Lynn McGuire <lynnmcguire5@gmail.com> - 2018-06-19 21:31 -0500
                  Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican Dimensional Traveler <dtravel@sonic.net> - 2018-06-19 20:37 -0700
                    Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican Juho Julkunen <giaotanj@hotmail.com> - 2018-06-20 13:34 +0300
                  Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican Chris Zakes <dontivar@gmail.com> - 2018-06-22 19:58 -0500
                    Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican Lynn McGuire <lynnmcguire5@gmail.com> - 2018-06-22 20:00 -0500
                    Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican Dimensional Traveler <dtravel@sonic.net> - 2018-06-22 21:26 -0700
            Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican Robert Carnegie <rja.carnegie@excite.com> - 2018-06-19 20:00 -0700
              Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican J. Clarke <jclarke.873638@gmail.com> - 2018-06-19 23:31 -0400
                Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican hamish.laws@gmail.com - 2018-06-19 21:22 -0700
        Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican djheydt@kithrup.com (Dorothy J Heydt) - 2018-06-20 00:03 +0000
          Re: OT proposed - Want to Breathe on Mars? - Bacteria - from ScientificAmerican a425couple <a425couple@hotmail.com> - 2018-06-20 11:50 -0700
            Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American D B Davis <g@crcomp.net> - 2018-06-20 20:33 +0000
              Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American Dimensional Traveler <dtravel@sonic.net> - 2018-06-20 13:48 -0700
                Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American D B Davis <g@crcomp.net> - 2018-06-20 23:00 +0000
                  Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American Peter Trei <petertrei@gmail.com> - 2018-06-21 12:14 -0700
                    Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American D B Davis <g@crcomp.net> - 2018-06-21 20:05 +0000
                    Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American Greg Goss <gossg@gossg.org> - 2018-06-22 08:51 -0600
                Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American Greg Goss <gossg@gossg.org> - 2018-06-22 08:50 -0600
                  Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American Dimensional Traveler <dtravel@sonic.net> - 2018-06-22 12:14 -0700

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#493875 — Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American

On 6/20/2018 1:33 PM, D B Davis wrote:
> a425couple <a425couple@hotmail.com> wrote:
>> On 6/19/2018 5:03 PM, Dorothy J Heydt wrote:
>>> In article <883jidpvm7akms7jigenqg37gn3pkseetk@4ax.com>,
>>> J. Clarke  <jclarke.873638@gmail.com> wrote:
>>>> On Mon, 18 Jun 2018 10:15:53 -0700, a425couple
>>>> <a425couple@hotmail.com> wrote:
>>>>
>>>>> On 6/18/2018 10:03 AM, a425couple wrote:
>>>>>> from
>>>>>> https://futurism.com/cyanobacteria-oxygen-mars/
>>>>>>
>>>>>> Want to Breathe on Mars? A Sea-Dwelling Bacteria Could Make That Possible.
>>>>>> Now, we may have a new hope in the hunt for a steady supply of oxygen on
>>>>>> the Red Planet: cyanobacteria. This family of bacteria sucks up carbon
>>>>>> dioxide and discharges oxygen in some of Earth's most inhospitable
>>>>>> environments.
>>>>>
>>>>> and another similar version
>>>>> https://www.scientificamerican.com/article/weird-low-light-bacteria-could-potentially-thrive-on-mars/
>>>>
>>>> The trouble with this notion is that there isn't much CO2 on Mars
>>>> either.  So the cyanobacteria could separate _all_ of it and there
>>>> still wouldn't be a breathable atmosphere.
>>>
>>> What we need to do to Mars before trying to give it an atmosphere
>>> is to restart its magnetic field.  I'm working on and off (mostly
>>> off) on a space opera in which that was done, and Mars
>>> subsequently terraformed, back in the mythical times Before The
>>> Interregnum which nobody remembers much of, so that I don't have
>>> to explain how it was done.  :)
>>>
>>
>> In the Star Trek series, "Star Trek Twilight's End" by
>> Jerry Oltion, they plan to start a planet spinning.
>> Which, would probably be one way.
>>
>> from
>> https://www.amazon.com/Twilights-End-Star-Trek-Original-ebook/dp/B000FC0VY8
>>
>> "Unlike most planets, Rimillia does not spin upon its axis so its day
>> and night sides are subject to perpetual extremes of hot and cold.
>> Habitation has only been possible on a thin band of the planet's
>> surface...until now.
>> Using gigantic impulse engines of unimaginable power, the alien Dumada
>> intend to start Rimillia rotating, rendering the entire world fit for
>> colonization. Yet some fear the enormous stresses involved may tear the
>> planet apart.
>> Assigned to assist the Dumada, Captain Kirk must rescue a kidnapped
>> scientist vital to the rotation project. But, once the giant engines are
>> activated, can even Scotty save Rimillia -- and the U.S.S. Enterprise
>> -- from total destruction."
> 
> *spoiler space*
> 
> 
> A malfunction catapults the ship /Hogan's Goat/ several billion years
> into the future in "One Face" (Niven). The premise is that you can
> think your way through any problem.
>      The /Goat's/ crew and passengers finds themselves in an aged Solar
> system where only one side of a now spinless Earth faces a shrunken Sun.
> For lack of any alternative, the /Goat/ lands near the Earth's equator.
> Then the ship's unobtainium is used to kickstart the Earth's spin.
> 
> ✍
> 
> Thank you,
> 
Nitpick: In both those cases the planets actually are rotating.  They 
have to be in order for the same hemisphere to remain facing the star 
while the planet orbits.  That situation is call "tidal lock".  A planet 
that was not rotating would have a day the same length as its year.

-- 
Inquiring minds want to know while minds with a self-preservation 
instinct are running screaming.

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#493903 — Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American

Dimensional Traveler <dtravel@sonic.net> wrote:
> On 6/20/2018 1:33 PM, D B Davis wrote:
>> a425couple <a425couple@hotmail.com> wrote:
>>> On 6/19/2018 5:03 PM, Dorothy J Heydt wrote:
>>>> In article <883jidpvm7akms7jigenqg37gn3pkseetk@4ax.com>,
>>>> J. Clarke  <jclarke.873638@gmail.com> wrote:
>>>>> On Mon, 18 Jun 2018 10:15:53 -0700, a425couple
>>>>> <a425couple@hotmail.com> wrote:
>>>>>
>>>>>> On 6/18/2018 10:03 AM, a425couple wrote:
>>>>>>> from
>>>>>>> https://futurism.com/cyanobacteria-oxygen-mars/
>>>>>>>
>>>>>>> Want to Breathe on Mars? A Sea-Dwelling Bacteria Could Make That Possible.
>>>>>>> Now, we may have a new hope in the hunt for a steady supply of oxygen on
>>>>>>> the Red Planet: cyanobacteria. This family of bacteria sucks up carbon  
>>>>>>> dioxide and discharges oxygen in some of Earth's most inhospitable
>>>>>>> environments.
>>>>>>
>>>>>> and another similar version
>>>>>> https://www.scientificamerican.com/article/weird-low-light-bacteria-could-potentially-thrive-on-mars/ 
>>>>>
>>>>> The trouble with this notion is that there isn't much CO2 on Mars
>>>>> either.  So the cyanobacteria could separate _all_ of it and there
>>>>> still wouldn't be a breathable atmosphere.
>>>>
>>>> What we need to do to Mars before trying to give it an atmosphere
>>>> is to restart its magnetic field.  I'm working on and off (mostly
>>>> off) on a space opera in which that was done, and Mars
>>>> subsequently terraformed, back in the mythical times Before The
>>>> Interregnum which nobody remembers much of, so that I don't have
>>>> to explain how it was done.  :)
>>>>
>>>
>>> In the Star Trek series, "Star Trek Twilight's End" by
>>> Jerry Oltion, they plan to start a planet spinning.
>>> Which, would probably be one way.
>>>
>>> from
>>> https://www.amazon.com/Twilights-End-Star-Trek-Original-ebook/dp/B000FC0VY8
>>>
>>> "Unlike most planets, Rimillia does not spin upon its axis so its day
>>> and night sides are subject to perpetual extremes of hot and cold.
>>> Habitation has only been possible on a thin band of the planet's
>>> surface...until now.
>>> Using gigantic impulse engines of unimaginable power, the alien Dumada
>>> intend to start Rimillia rotating, rendering the entire world fit for
>>> colonization. Yet some fear the enormous stresses involved may tear the
>>> planet apart.
>>> Assigned to assist the Dumada, Captain Kirk must rescue a kidnapped
>>> scientist vital to the rotation project. But, once the giant engines are
>>> activated, can even Scotty save Rimillia -- and the U.S.S. Enterprise
>>> -- from total destruction."
>>
>> *spoiler space*
>> 
>> 
>> A malfunction catapults the ship /Hogan's Goat/ several billion years
>> into the future in "One Face" (Niven). The premise is that you can
>> think your way through any problem.
>>      The /Goat's/ crew and passengers finds themselves in an aged Solar
>> system where only one side of a now spinless Earth faces a shrunken Sun.
>> For lack of any alternative, the /Goat/ lands near the Earth's equator.
>> Then the ship's unobtainium is used to kickstart the Earth's spin.
>>
> Nitpick: In both those cases the planets actually are rotating.  They
> have to be in order for the same hemisphere to remain facing the star
> while the planet orbits.  That situation is call "tidal lock".  A planet
> that was not rotating would have a day the same length as its year.

Split o' the nit: rotate ≠ spin

From my _Oxford Dictionary_:

rotate
    move or cause to move in a circle round an axis or centre.

spin
    turn or whirl round quickly.

✍

Thank you,

-- 
Don

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#493972 — Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American

On Wednesday, June 20, 2018 at 7:00:38 PM UTC-4, D B Davis wrote:
> Dimensional Traveler <dtravel@sonic.net> wrote:
> > On 6/20/2018 1:33 PM, D B Davis wrote:
> >> a425couple <a425couple@hotmail.com> wrote:
> >>> On 6/19/2018 5:03 PM, Dorothy J Heydt wrote:
> >>>> In article <883jidpvm7akms7jigenqg37gn3pkseetk@4ax.com>,
> >>>> J. Clarke  <jclarke.873638@gmail.com> wrote:
> >>>>> On Mon, 18 Jun 2018 10:15:53 -0700, a425couple
> >>>>> <a425couple@hotmail.com> wrote:
> >>>>>
> >>>>>> On 6/18/2018 10:03 AM, a425couple wrote:
> >>>>>>> from
> >>>>>>> https://futurism.com/cyanobacteria-oxygen-mars/
> >>>>>>>
> >>>>>>> Want to Breathe on Mars? A Sea-Dwelling Bacteria Could Make That Possible.
> >>>>>>> Now, we may have a new hope in the hunt for a steady supply of oxygen on
> >>>>>>> the Red Planet: cyanobacteria. This family of bacteria sucks up carbon  
> >>>>>>> dioxide and discharges oxygen in some of Earth's most inhospitable
> >>>>>>> environments.
> >>>>>>
> >>>>>> and another similar version
> >>>>>> https://www.scientificamerican.com/article/weird-low-light-bacteria-could-potentially-thrive-on-mars/ 
> >>>>>
> >>>>> The trouble with this notion is that there isn't much CO2 on Mars
> >>>>> either.  So the cyanobacteria could separate _all_ of it and there
> >>>>> still wouldn't be a breathable atmosphere.
> >>>>
> >>>> What we need to do to Mars before trying to give it an atmosphere
> >>>> is to restart its magnetic field.  I'm working on and off (mostly
> >>>> off) on a space opera in which that was done, and Mars
> >>>> subsequently terraformed, back in the mythical times Before The
> >>>> Interregnum which nobody remembers much of, so that I don't have
> >>>> to explain how it was done.  :)
> >>>>
> >>>
> >>> In the Star Trek series, "Star Trek Twilight's End" by
> >>> Jerry Oltion, they plan to start a planet spinning.
> >>> Which, would probably be one way.
> >>>
> >>> from
> >>> https://www.amazon.com/Twilights-End-Star-Trek-Original-ebook/dp/B000FC0VY8
> >>>
> >>> "Unlike most planets, Rimillia does not spin upon its axis so its day
> >>> and night sides are subject to perpetual extremes of hot and cold.
> >>> Habitation has only been possible on a thin band of the planet's
> >>> surface...until now.
> >>> Using gigantic impulse engines of unimaginable power, the alien Dumada
> >>> intend to start Rimillia rotating, rendering the entire world fit for
> >>> colonization. Yet some fear the enormous stresses involved may tear the
> >>> planet apart.
> >>> Assigned to assist the Dumada, Captain Kirk must rescue a kidnapped
> >>> scientist vital to the rotation project. But, once the giant engines are
> >>> activated, can even Scotty save Rimillia -- and the U.S.S. Enterprise
> >>> -- from total destruction."
> >>
> >> *spoiler space*
> >> 
> >> 
> >> A malfunction catapults the ship /Hogan's Goat/ several billion years
> >> into the future in "One Face" (Niven). The premise is that you can
> >> think your way through any problem.
> >>      The /Goat's/ crew and passengers finds themselves in an aged Solar
> >> system where only one side of a now spinless Earth faces a shrunken Sun.
> >> For lack of any alternative, the /Goat/ lands near the Earth's equator.
> >> Then the ship's unobtainium is used to kickstart the Earth's spin.
> >>
> > Nitpick: In both those cases the planets actually are rotating.  They
> > have to be in order for the same hemisphere to remain facing the star
> > while the planet orbits.  That situation is call "tidal lock".  A planet
> > that was not rotating would have a day the same length as its year.
> 
> Split o' the nit: rotate ≠ spin
> 
> From my _Oxford Dictionary_:
> 
> rotate
>     move or cause to move in a circle round an axis or centre.
> 
> spin
>     turn or whirl round quickly.

Let's NOT start that pointless debate again.

Some people just can't get that there are multiple valid frames of reference.

pt

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#493977 — Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American

Peter Trei <petertrei@gmail.com> wrote:
> On Wednesday, June 20, 2018 at 7:00:38 PM UTC-4, D B Davis wrote:

<snip>

>> Split o' the nit: rotate ≠ spin
>>
>> From my _Oxford Dictionary_:
>>
>> rotate
>>     move or cause to move in a circle round an axis or centre.
>>
>> spin
>>     turn or whirl round quickly.
>
> Let's NOT start that pointless debate again.
>
> Some people just can't get that there are multiple valid frames of reference.

Your "frame of reference" nitsplit spin spin beats my Oxfordian pedantry
like a drum.  You elegantly put the idea into words. Excellent!

✍

Thank you,

-- 
Don

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#494017 — Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American

Peter Trei <petertrei@gmail.com> wrote:

>Let's NOT start that pointless debate again.
>
>Some people just can't get that there are multiple valid frames of reference.

If you're doing some kinds of detail work, a non-inertial FOR can have
problems.  But yeah.
-- 
We are geeks.  Resistance is voltage over current.

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#494016 — Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American

Dimensional Traveler <dtravel@sonic.net> wrote:

>Nitpick: In both those cases the planets actually are rotating.  They 
>have to be in order for the same hemisphere to remain facing the star 
>while the planet orbits.  That situation is call "tidal lock".  A planet 
>that was not rotating would have a day the same length as its year.

To most people living on a planet, unless you're an astronomer or
designing weather-prediction models, a rotating frame of reference is
the most useful one.

I am NOT travelling 700 miles per hour lying in bed.

-- 
We are geeks.  Resistance is voltage over current.

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#494055 — Re: OT proposed - Want to Breathe on Mars? - Bacteria - from Scientific American

On 6/22/2018 7:50 AM, Greg Goss wrote:
> Dimensional Traveler <dtravel@sonic.net> wrote:
> 
>> Nitpick: In both those cases the planets actually are rotating.  They
>> have to be in order for the same hemisphere to remain facing the star
>> while the planet orbits.  That situation is call "tidal lock".  A planet
>> that was not rotating would have a day the same length as its year.
> 
> To most people living on a planet, unless you're an astronomer or
> designing weather-prediction models, a rotating frame of reference is
> the most useful one.
> 
> I am NOT travelling 700 miles per hour lying in bed.
> 
I should hope not, the constant sonic boom would keep you awake at 
night.  ;)

-- 
Inquiring minds want to know while minds with a self-preservation 
instinct are running screaming.

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