Imagine the pressure you'd feel at the bottom of the Mariana Trench.
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From: Double-A on 3 Nov 2009 15:49 On Nov 3, 12:36 pm, BradGuth <bradg...(a)gmail.com> wrote: > On Nov 3, 11:57 am, Double-A <double...(a)hush.com> wrote: > > > > > > > On Nov 3, 10:52 am, BradGuth <bradg...(a)gmail.com> wrote: > > > > On Nov 3, 10:11 am, Double-A <double...(a)hush.com> wrote: > > > > > On Oct 29, 10:43 pm, _@Jeff_Relf.Seattle.inValid wrote: > > > > > > Pressure accrues. > > > > > The deeper you go the higher the pressure and temperature. > > > > > > What could produce reduced pressure and/or lower density > > > > > at the center of the earth ? > > > > > At the center of the Earth it's like you are in a vice that has > > > > tightened on you to terrific pressure. Only difference is that the > > > > pressure is from all sides equally, so there is no direction for your > > > > brains to squirt out! > > > > > Double-A > > > > However, at near zero gravity (say within a 1% volume of Earth as > > > representing its inner most core where gravity is less than 0.1%) > > > whereas the center most zone of dead center is actually zero or even > > > reverse gravity (meaning you'd oscillate or vibrate within this final > > > sphere), how can there be pressure? > > > > ~ BG > > > If your head were clamped in a vice that was tightening, what would > > you care about gravity? Get the point? > > > Double-A > > At near zero gravity, where's all that pressure coming from? > > How much does lead or any other element weigh at zero gravity? > > ~ BG The pressure is coming from the mass on all sides of you that IS feeling gravity and is all pushing inwards, each side attracting the opposite side. Double-A
From: BradGuth on 3 Nov 2009 16:11 On Nov 3, 12:49 pm, Double-A <double...(a)hush.com> wrote: > On Nov 3, 12:36 pm, BradGuth <bradg...(a)gmail.com> wrote: > > > > > On Nov 3, 11:57 am, Double-A <double...(a)hush.com> wrote: > > > > On Nov 3, 10:52 am, BradGuth <bradg...(a)gmail.com> wrote: > > > > > On Nov 3, 10:11 am, Double-A <double...(a)hush.com> wrote: > > > > > > On Oct 29, 10:43 pm, _@Jeff_Relf.Seattle.inValid wrote: > > > > > > > Pressure accrues. > > > > > > The deeper you go the higher the pressure and temperature. > > > > > > > What could produce reduced pressure and/or lower density > > > > > > at the center of the earth ? > > > > > > At the center of the Earth it's like you are in a vice that has > > > > > tightened on you to terrific pressure. Only difference is that the > > > > > pressure is from all sides equally, so there is no direction for your > > > > > brains to squirt out! > > > > > > Double-A > > > > > However, at near zero gravity (say within a 1% volume of Earth as > > > > representing its inner most core where gravity is less than 0.1%) > > > > whereas the center most zone of dead center is actually zero or even > > > > reverse gravity (meaning you'd oscillate or vibrate within this final > > > > sphere), how can there be pressure? > > > > > ~ BG > > > > If your head were clamped in a vice that was tightening, what would > > > you care about gravity? Get the point? > > > > Double-A > > > At near zero gravity, where's all that pressure coming from? > > > How much does lead or any other element weigh at zero gravity? > > > ~ BG > > The pressure is coming from the mass on all sides of you that IS > feeling gravity and is all pushing inwards, each side attracting the > opposite side. > > Double-A However, an eggshell would likely protect you, because the vast bulk of whatever is surrounding yourself is being pulled outwards unless you yourself represented more density than anything else (thus you'd be representing gravity). If the core substance were that of hydrogen and helium? ~ BG
From: Darla on 3 Nov 2009 16:17 "Double-A" <double-a3(a)hush.com> wrote in message news:8398584a-b8da-4e4c-b333-11f3b5350b25(a)o10g2000yqa.googlegroups.com... On Oct 30, 12:30 pm, BradGuth <bradg...(a)gmail.com> wrote: > On Oct 30, 9:07 am, "Nightcrawler" <Dirtyde...(a)dirtcheap.net> wrote: > > > > > > > "BradGuth" <bradg...(a)gmail.com> wrote in > > messagenews:441e8ea2-89e4-4b3d-8091-50f193628723(a)j9g2000prh.googlegroups.com... > > > On Oct 29, 7:10 pm, _@Jeff_Relf.Seattle.inValid wrote: > > >> Brad�Guth's �hollow earth� theory is insane. Pressure accrues. > > >> Imagine the pressure you'd feel at the bottom of the Mariana Trench. > > > >> The center of earth is like that but, instead of water, > > >> you have zetta�tons of blazing�hot steel pressing down on you. > > > > It's just a theory, although hollow is relative. > > > Hollow is defined, not relative. > > > > How about a reduced pressure and/or lower density interior? > > > The pressure at the center is created through compression, not > > gravitational attraction AT THE CORE, rather the matter trying to get > > TO/THRU the core via the resultant vector created by ALL of the matter > > of the earth, not just at the core. > > > However, do to this compression the matter at the core will have a > > higher specific density, thus a bit more gravity than the same material > > would have without a large mass trying to press through equally from > > all sides. > > That�s really odd, because in deep underground caves or mine shafts, > other than the expected atmospheric pressure increase that�s obvious > and somewhat minor (<42% increase per 3.5 km depth unless you plan on > artificially cooling that column of air in order to get a 100% > increase per 3.5 km), there�s hardly any other significant geology > pressures for our physiology to contend with, including while swimming > or scuba diving in those deep underground lakes or aquifers, and > there�s certainly not any big increase in gravity (if anything it only > measurably increases ever so slightly), and there�s certainly no > objective way of telling if the inner core is merely that of a dense > shell that�s hollow inside, or not. > http://nopr.niscair.res.in/bitstream/123456789/2506/1/IJRSP%2037(1)%2... The fact that gravity increases measurably in deep caves/mines tells you that the interior of the Earth is denser than the rock above you. Otherwise gravity would have already begun to decrease. Double-A My dearest Double-A! The centerline gravity Has begun to decrease. It's the downward semi-lateral crust density that increases a bit more quickly than that centerline decrease that causes the increase in net gravitational force as one goes deeper into the crust. For a time. Measuring devices used so far have no way of distinguishing the semi-lateral forces from the centerline force, so they measure the net force as having increased. There is, of course, a semi-lateral force at the surface which, if separated from the centerline force, would be found to be at minimum, and it increases quickly as spelunkers and divers explore to deeper levels. At a glance, it may seem that the semi-lateral forces cancel. That is only true if they are 180 degrees out of phase. There are infinite directions of pull that are less than 180 degrees out of phase. The downward semi-laterals do eventually get cancelled more and more by the upward forces. One must go extremely deep before the net decrease would begin to establish itself. What you call "gravity" must be the greatest fun for all of you! You must try to imagine the real vectorial forces upon you and shy away from Newton's centerline-only gravitational image. Such an imagication is quite limiting. The sky is a "limit", and it stretches out in infinite directions. So why not the ground also? Is the Earth not infinite vectorisations within a finite boundary? -- Darla
From: Sam Wormley on 3 Nov 2009 17:58 Henry Wilson DSc wrote: > > Earth is slowly rotating so centrifugal force is insufficiet to obercome > gratvity near the centre. But what about a very rapidly spinning neutron > star? > > It could easily be hollow. No Henry, Henri--the centrifugal force from the perspective of a rotating coordinate system goes to zero at the core.
From: BradGuth on 3 Nov 2009 20:08
On Nov 3, 1:17 pm, "Darla" <darlap...(a)aol.com> wrote: > "Double-A" <double...(a)hush.com> wrote in message > > news:8398584a-b8da-4e4c-b333-11f3b5350b25(a)o10g2000yqa.googlegroups.com... > On Oct 30, 12:30 pm, BradGuth <bradg...(a)gmail.com> wrote: > > > > > On Oct 30, 9:07 am, "Nightcrawler" <Dirtyde...(a)dirtcheap.net> wrote: > > > > "BradGuth" <bradg...(a)gmail.com> wrote in > > > messagenews:441e8ea2-89e4-4b3d-8091-50f193628723(a)j9g2000prh.googlegroups.com... > > > > On Oct 29, 7:10 pm, _@Jeff_Relf.Seattle.inValid wrote: > > > >> Brad·Guth's hollow earth theory is insane. Pressure accrues. > > > >> Imagine the pressure you'd feel at the bottom of the Mariana Trench. > > > > >> The center of earth is like that but, instead of water, > > > >> you have zetta·tons of blazing·hot steel pressing down on you. > > > > > It's just a theory, although hollow is relative. > > > > Hollow is defined, not relative. > > > > > How about a reduced pressure and/or lower density interior? > > > > The pressure at the center is created through compression, not > > > gravitational attraction AT THE CORE, rather the matter trying to get > > > TO/THRU the core via the resultant vector created by ALL of the matter > > > of the earth, not just at the core. > > > > However, do to this compression the matter at the core will have a > > > higher specific density, thus a bit more gravity than the same material > > > would have without a large mass trying to press through equally from > > > all sides. > > > Thats really odd, because in deep underground caves or mine shafts, > > other than the expected atmospheric pressure increase thats obvious > > and somewhat minor (<42% increase per 3.5 km depth unless you plan on > > artificially cooling that column of air in order to get a 100% > > increase per 3.5 km), theres hardly any other significant geology > > pressures for our physiology to contend with, including while swimming > > or scuba diving in those deep underground lakes or aquifers, and > > theres certainly not any big increase in gravity (if anything it only > > measurably increases ever so slightly), and theres certainly no > > objective way of telling if the inner core is merely that of a dense > > shell thats hollow inside, or not. > >http://nopr.niscair.res.in/bitstream/123456789/2506/1/IJRSP%2037(1)%2... > > The fact that gravity increases measurably in deep caves/mines tells > you that the interior of the Earth is denser than the rock above you. > Otherwise gravity would have already begun to decrease. > > Double-A > > My dearest Double-A! > The centerline gravity Has begun to decrease. > It's the downward semi-lateral crust density that increases a bit more > quickly than that centerline decrease that causes the increase in net > gravitational force as one goes deeper into the crust. > For a time. > > Measuring devices used so far have no way of distinguishing the semi-lateral > forces from the centerline force, so they measure the net force as having > increased. > There is, of course, a semi-lateral force at the surface which, if separated > from the centerline force, would be found to be at minimum, and it increases > quickly as spelunkers and divers explore to deeper levels. > > At a glance, it may seem that the semi-lateral forces cancel. > That is only true if they are 180 degrees out of phase. > There are infinite directions of pull that are less than 180 degrees out of > phase. > The downward semi-laterals do eventually get cancelled more and more by the > upward forces. > One must go extremely deep before the net decrease would begin to establish > itself. > > What you call "gravity" must be the greatest fun for all of you! > You must try to imagine the real vectorial forces upon you and shy away from > Newton's centerline-only gravitational image. > Such an imagication is quite limiting. > > The sky is a "limit", and it stretches out in infinite directions. > So why not the ground also? > Is the Earth not infinite vectorisations within a finite boundary? > > -- > Darla That's certainly a whole lot better way of saying it, though still complex and as you say, it's not going to be limited to all that Newtonian centerline-only gravitational stuff as we travel inward (below the crust). It must be nearly as complex and/or downright interesting for that of our Selene/moon interior, thats no longer fluid under that extremely thick and substantially mineral saturated crust, other than encountering a few layers or geode pockets of mineral brines. Whats at the residual hot core of our Selene/moon? Whats the approximate age of our moon? ~ BG |