Recent content by zankaon

  1. Z

    Absence of dust on moon and material sciences

    Might absence of dust on moon (such as for astronauts' experience) relate to importance of material sciences? That is, might surfaces interact electronically, seeking a more stable lowest energy configuration? Imaging it as if 2 grates rubbing together, seeking best fit? Air might then disrupt...
  2. Z

    Is it Possible to Rescue a Stranded Crew Member on a Spinning Space Station?

    If a crew member were stranded on space station, due to spin, would he be rescuable? For example if an extended part bent or broke, putting the ship into a spin or tumble. If it were a one axis spin, perhaps a large mass, attached at a distance would change moment of inertia sufficient to...
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    Gravity and developments in GR after WMAP 5 year data

    Cosmological constant, as well as Hubble expansion, are similar in the sense that they are separate additions; they are not part of GR. GR model has a 4-manifold (surface) rendition. Hubble expansion is a 3-manifold, with no constraint of velocity of light as expansion rate. The 2 descriptions...
  4. Z

    Big Brain Theory: Have Cosmologists Lost Theirs?

    How can one refer to initial conditions (classical) for the early universe, when one obviously has an evolving quantum experimental environment. It is not necessarily somehow an universal experiment starting. Even if it were so, still mixing talk of initial conditions with an evolving quantum...
  5. Z

    Irreversible Climate Change Already?

    One might keep in mind that equal quantities might be best considered in terms of effect of equal number of molecules; that is 1 mole. The respective gram molecular weights are 44 gm for CO2 and 16 gm for methane, giving the same number of molecules i.e. Avogadro number of ~6 x 10^23, even...
  6. Z

    A warming planet, without CO2 increase?

    Might averaged thermocline be statistically shifted for over successive 100 yr bins? For ex., W. Pacific for near Indonesia, ~ 140 ft., and in E. Pacific, ~ 40 ft. for non El Nino effect. Might we be under-estimating nature's delayed response to new carbon sources? That is, can nature compensate...
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    A testable model addressing the issue of East Antartica ice sheet stability?

    Re: A testable model addressing the issue of East Antarctica ice sheet stability? As above: If the Isthmus of Panama were opened by significant rising sea level, then Gulf of Mexico waters might egress to Pacific. This would then seem to disrupt the Gulf Stream. Hence one could also obtain...
  8. Z

    A testable model addressing the issue of East Antartica ice sheet stability?

    Additional background articles: Links between climate and sea levels for the past three million years Kurt Lambeck, Tezer M. Esat, Emma-Kate Potter Nature 419, 199-206 12 September 2002. Insight Review http://www.nature.com/nature/journal/v419/n6903/abs/nature01089.html" Effect of the...
  9. Z

    A testable model addressing the issue of East Antartica ice sheet stability?

    If the Isthmus of Panama were opened by significant rising sea level, then Gulf of Mexico waters might egress to Pacific. This would then seem to disrupt the Gulf Stream. Hence one could also obtain sea bed cores from south more proximal aspect of Stream to see if there has been disruption of...
  10. Z

    A testable model addressing the issue of East Antartica ice sheet stability?

    A considerable portion of E. Antarctica ice (average of 1.6 km height) rests on bedrock of 2000+ ft above sea level. https://www.physicsforums.com/showthread.php?t=344123" Would such a core suffice to cover enough glacial and inter-glacial periods; giving an adequate sample? Would any evidence...
  11. Z

    A warming planet, without CO2 increase?

    Might one have a warming planet, without CO2 increase? The last 15,000 years is evidence for such case, since pre-industrial CO2 is considered as ~280. If one had a slow down in vertical mixing (i.e. lower surface water turnover; say 1% over 100 yrs for 15,000 yrs- giving 150%), resulting...
  12. Z

    Is the slowing of oceanic turnover contributing to Halocene warming?

    The top 2.5-3.5 meters of ocean heat capacity is ~ equal to that of atmosphere; see Ocean Heat Storage thread. Since the LGM 20,000 years ago, and over Holocene of ~15,000 years, one has had gradual overall warming of atmosphere (ice core gases?) and supposedly of average ocean temperature...
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    Is Mother Nature the main driver of fluctuating CO2 levels?

    Svalbard CO_2 peaked at 397; now 393. NOAA, incorporating 60 sites, has CO_2 386. Rate of yearly increase at ~2 ppm, an increasing rate in comparison to past. A non-linear accelerating proxy curve? Are effects of global warming also on a non-linear accelerating rate curve...
  14. Z

    Is the slowing of oceanic turnover contributing to Halocene warming?

    What might be underlying possible causes(s) of Halocene warming over last 15000 years? Any mild Milankovitch forcing by just 20k precession effect? http://en.wikipedia.org/wiki/Milankovitch_Forcing"
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    Are we effectively approaching a transition zone from 'Oligocene to Eocene' ?

    Total surface area of ice in all of Antarctica (east and west) is ~ 13,720,000 km^2, with average thickness of 1.6 km.; giving ice volume of 21,952,000 km^3. http://en.wikipedia.org/wiki/Anarctica. Ocean surface area is 361,132,000 km^2 (70.8% of planet surface area)...
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