Environmental News

Discussion in 'Environmental Discussion' started by tochatihu, Oct 22, 2015.

  1. tochatihu

    tochatihu Senior Member

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    A chunk of wood will sink, but this is slow because internal air holes are not readily filled. Folks experimenting on 'woodfalls' attach dense weights to the bundle.

    By the same token, wooden boats should really not sink, unless they are carrying denser things.
     
  2. hill

    hill High Fiber Member

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    Like hydrogen car manufacturers for instance. Can't get any more dense than that. Maybe we could put them in a sinking wooden ship ... test my theory.

    .
     
  3. bwilson4web

    bwilson4web 03 and 10 Prius

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    When I first read the story, I though the Tom Hanks movie, "Cast Away", needs a remake. In this one, he discovers how to make rope and other 'stuff' from thermal plastics and launches a catamaran that easily does 10-15 knots.

    Bob Wilson
     
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  4. Trollbait

    Trollbait It's a D&D thing

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    My driftwood and sinking comment was in response to wooden skips sinking.
    If the hull completely breaks up, then it all becomes driftwood to wash up some where or sink in time. In most wrecks, the hull doesn't break up in a major fashion, and the weight of the cargo drags the normally buoyant wood down to the sea bed.
     
  5. tochatihu

    tochatihu Senior Member

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  6. Trollbait

    Trollbait It's a D&D thing

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  7. tochatihu

    tochatihu Senior Member

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  8. KennyGS

    KennyGS Active Member

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    Any speculations on the next key event in the energy expansion of Earth's continuing evolution?
     
  9. bwilson4web

    bwilson4web 03 and 10 Prius

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    I don't see any reference to nuclear which I think logically follows 'fire'. But that also begs an open question of non-biological renewables, wind, and photovoltaic solar.

    Although the growth of nuclear fission has moderated thanks to Fukushima, Chernobyl, and even Three Mile Island, it is still going on, more slowly. Fusion of course is the future (and always will be.)

    I'll grant that photovoltaic energy is a variation of solar just by non-biological means. I'll concede it completes with photosynthesis but with a more direct conversion equivalent to fire but without the by-products. So this one may be debatable but wind is something else.

    Wind power has more in common with the energy soaring birds use for transportation yet this is not really covered in the earlier epics. Yet ocean currents and wind transport, these have existed for a long time and seem independent of the other energy sources.

    Well time to load some Earth, Wind and Fire on the iPhone and work my chores.

    Bob Wilson
     
  10. tochatihu

    tochatihu Senior Member

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    [email protected] I appreciate the pun. Also agree that nuclear (in some way or another) is a likely energy source wherever technologists hang out.

    Uranium 235 isotope has half life ~700 million years. Our appearance here was about 7 half lives after the precursor supernova deposited heavy elements in the neighborhood. So the story goes. Other folk elsewhere, who happen to be much slower spinning up might find themselves on a planet with much less than 0.7% of this key isotope among the uraniums. Which did not sink to core here because it makes O, OH, SH and SO4 minerals.

    All these forms of partaking energy rely on amazing series of coincidences.

    BTW, wind and hydro are also solar energy.
     
  11. tochatihu

    tochatihu Senior Member

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    Antibiotics are our notable (and recent) defense against microbes; taken directly from the ongoing microbial war. Or inspired by it.

    Among the few alternatives, you ought to read this:

    A possible alternative to antibiotics -- ScienceDaily

    Which may cause you to think about vitamin C and orange juice and things like that.
     
  12. tochatihu

    tochatihu Senior Member

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    Followup @167; Photosynthetic energy capture is about 3 times Human energy generation by burning and renewable. So 'Mom' still leads.We might actually surpass by end of 21st century.
     
  13. tochatihu

    tochatihu Senior Member

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    Here is a sub-$20 book that describes 100 responses to climate change. Of which at least some are probably worth knowing about:

    Drawdown
     
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