Guest Captain Compassion Posted July 17, 2007 Posted July 17, 2007 New ice age theory: Sun's 'dimmer switch' Submitted by Vidura Panditaratne on Wed, 2007-01-24 21:06.Sci | Non-geographical | News http://pressesc.com/01169672696_ Sun has a dimmer switch Ice ages are not caused by planet Earth Quote
Guest Roger Posted July 17, 2007 Posted July 17, 2007 From http://environment.newscientist.com/channel/earth/mg19325884.500-suns-fickle-heart-may-leave-us-cold.html Nigel Weiss, a solar physicist at the University of Cambridge, is far from convinced. He describes Ehrlich's claims as "utterly implausible". Ehrlich counters that Weiss's opinion is based on the standard solar model, which fails to take into account the magnetic instabilities that cause the temperature fluctuations. "Captain Compassion" <daranc@NOSPAMcharter.net> wrote in message news:k2op93htsrnb2ub3gdl1aqcljbbsrh3hsg@4ax.com... > New ice age theory: Sun's 'dimmer switch' > Submitted by Vidura Panditaratne on Wed, 2007-01-24 21:06.Sci | > Non-geographical | News > http://pressesc.com/01169672696_ > > Sun has a dimmer switch > > Ice ages are not caused by planet Earth's orbital variations as once > thought, but by the dimmer switch inside the sun that causes its > brightness to rise and fall on timescales of around 100,000 years > which is exactly the same period as between ice ages on Earth, > according to a radical new theory proposed by renowned astrophysicist > Robert Ehrlich of George Mason University. > > Ehrlich modelled the effect of temperature fluctuations in the sun's > interior and showed that while the temperature of the sun's core is > held constant by the opposing pressures of gravity and nuclear fusion, > slight variations are possible. > > His research builds upon the work of Attila Grandpierre and G Quote
Guest Captain Compassion Posted July 17, 2007 Posted July 17, 2007 On Tue, 17 Jul 2007 09:02:36 -0700, "Roger" <rogerfx@hotmail.com> wrote: >From >http://environment.newscientist.com/channel/earth/mg19325884.500-suns-fickle-heart-may-leave-us-cold.html > >Nigel Weiss, a solar physicist at the University of Cambridge, is far from >convinced. He describes Ehrlich's claims as "utterly implausible". Ehrlich >counters that Weiss's opinion is based on the standard solar model, which >fails to take into account the magnetic instabilities that cause the >temperature fluctuations. > Scientists disagreeing with each other. What a novel concept. > >"Captain Compassion" <daranc@NOSPAMcharter.net> wrote in message >news:k2op93htsrnb2ub3gdl1aqcljbbsrh3hsg@4ax.com... >> New ice age theory: Sun's 'dimmer switch' >> Submitted by Vidura Panditaratne on Wed, 2007-01-24 21:06.Sci | >> Non-geographical | News >> http://pressesc.com/01169672696_ >> >> Sun has a dimmer switch >> >> Ice ages are not caused by planet Earth's orbital variations as once >> thought, but by the dimmer switch inside the sun that causes its >> brightness to rise and fall on timescales of around 100,000 years >> which is exactly the same period as between ice ages on Earth, >> according to a radical new theory proposed by renowned astrophysicist >> Robert Ehrlich of George Mason University. >> >> Ehrlich modelled the effect of temperature fluctuations in the sun's >> interior and showed that while the temperature of the sun's core is >> held constant by the opposing pressures of gravity and nuclear fusion, >> slight variations are possible. >> >> His research builds upon the work of Attila Grandpierre and G Quote
Guest neoconis_ignoramus Posted July 19, 2007 Posted July 19, 2007 On Jul 17, 12:05 pm, Captain Compassion <dar...@NOSPAMcharter.net> wrote: > On Tue, 17 Jul 2007 09:02:36 -0700, "Roger" <roge...@hotmail.com> > wrote: > > >From > >http://environment.newscientist.com/channel/earth/mg19325884.500-suns... > > >Nigel Weiss, a solar physicist at the University of Cambridge, is far from > >convinced. He describes Ehrlich's claims as "utterly implausible". Ehrlich > >counters that Weiss's opinion is based on the standard solar model, which > >fails to take into account the magnetic instabilities that cause the > >temperature fluctuations. > > Scientists disagreeing with each other. What a novel concept. > > > > > > > > >"Captain Compassion" <dar...@NOSPAMcharter.net> wrote in message > >news:k2op93htsrnb2ub3gdl1aqcljbbsrh3hsg@4ax.com... > >> New ice age theory: Sun's 'dimmer switch' > >> Submitted by Vidura Panditaratne on Wed, 2007-01-24 21:06.Sci | > >> Non-geographical | News > >>http://pressesc.com/01169672696_ > > >> Sun has a dimmer switch > > >> Ice ages are not caused by planet Earth's orbital variations as once > >> thought, but by the dimmer switch inside the sun that causes its > >> brightness to rise and fall on timescales of around 100,000 years > >> which is exactly the same period as between ice ages on Earth, > >> according to a radical new theory proposed by renowned astrophysicist > >> Robert Ehrlich of George Mason University. > > >> Ehrlich modelled the effect of temperature fluctuations in the sun's > >> interior and showed that while the temperature of the sun's core is > >> held constant by the opposing pressures of gravity and nuclear fusion, > >> slight variations are possible. > > >> His research builds upon the work of Attila Grandpierre and G Quote
Guest Captain Compassion Posted July 19, 2007 Posted July 19, 2007 On Wed, 18 Jul 2007 17:20:18 -0700, neoconis_ignoramus <bellamacina@verizon.net> wrote: >On Jul 17, 12:05 pm, Captain Compassion <dar...@NOSPAMcharter.net> >wrote: >> On Tue, 17 Jul 2007 09:02:36 -0700, "Roger" <roge...@hotmail.com> >> wrote: >> >> >From >> >http://environment.newscientist.com/channel/earth/mg19325884.500-suns... >> >> >Nigel Weiss, a solar physicist at the University of Cambridge, is far from >> >convinced. He describes Ehrlich's claims as "utterly implausible". Ehrlich >> >counters that Weiss's opinion is based on the standard solar model, which >> >fails to take into account the magnetic instabilities that cause the >> >temperature fluctuations. >> >> Scientists disagreeing with each other. What a novel concept. >> >> >> >> >> >> >> >> >"Captain Compassion" <dar...@NOSPAMcharter.net> wrote in message >> >news:k2op93htsrnb2ub3gdl1aqcljbbsrh3hsg@4ax.com... >> >> New ice age theory: Sun's 'dimmer switch' >> >> Submitted by Vidura Panditaratne on Wed, 2007-01-24 21:06.Sci | >> >> Non-geographical | News >> >>http://pressesc.com/01169672696_ >> >> >> Sun has a dimmer switch >> >> >> Ice ages are not caused by planet Earth's orbital variations as once >> >> thought, but by the dimmer switch inside the sun that causes its >> >> brightness to rise and fall on timescales of around 100,000 years >> >> which is exactly the same period as between ice ages on Earth, >> >> according to a radical new theory proposed by renowned astrophysicist >> >> Robert Ehrlich of George Mason University. >> >> >> Ehrlich modelled the effect of temperature fluctuations in the sun's >> >> interior and showed that while the temperature of the sun's core is >> >> held constant by the opposing pressures of gravity and nuclear fusion, >> >> slight variations are possible. >> >> >> His research builds upon the work of Attila Grandpierre and G Quote
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