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Methusala

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  1. Methusala
    Definition. Theories are formulated to explain, predict, and understand phenomena and, in many cases, to challenge and extend existing knowledge within the limits of critical bounding assumptions. Definition of hypothesis: A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation. Definition of scientific fact: In the most basic sense, a scientific fact is an objective and verifiable observation, in contrast with a hypothesis or theory, which is intended to explain or interpret facts. (From a NASA fact sheet on CO2 in the atmosphere.) Scientific evidence of action of CO2 in causing warming of the climate system is unequivocal. The heat-trapping nature of carbon dioxide and other gases was demonstrated in the mid-19th century. Burning (oxidation) of hydro carbon fuel produces heat, water vapour and CO2 How many ways do you guys need to have this explained to you before 'the penny drops"?
  2. Methusala
    Refer to my post #80 and don't backtrack. We are able to follow this conversation without obvious memory lapses.
  3. Methusala
    Hit power lines and then careened into a vineyard complete with trellised vines. Hope he makes a full recovery. I think that light aircraft and movie cameras are more dangerous mix than mobile phones and young (female) drivers.
  4. Methusala
    Only shows that rye grass is more adaptable to conditions than your agronomist. Says nothing new about ACC.
  5. Methusala
    If you have an active brain you will be able to find (with a small effort) that cores recovered from glaciers reveal an accurate climate record. 'Scientists use the chemistry of the water molecules in the ice layers to see how the temperature has varied through the millennia. These ice layers also trap tiny bubbles from the ancient atmosphere, allowing us to measure prehistoric CO₂ levels directly.' { The Conversation, 19 Jun 2017 } Study of this scientific evidence shows that the co2 levels in the atmosphere are at almost unprecedented levels but also that the co2 concentration has increased extremely rapidly. If the Daily Terrorgraph is your preferred source of information maybe it is time to broaden your reading. Honestly, one can find all sorts of fairy tales. The truth is out there.
  6. Methusala
    Last night on The ABC 730 we saw the types who are attracted to Morrison. Light weight non-thinkers who can't see through the flim-flam of a practiced advertising con man.
  7. Methusala
    "When you tally the greenhouse gases from the fossil fuels exported by each country, Australia's coal and gas exports total over 1.1bn tonnes of carbon dioxide – more than double its domestic emissions – making it the world's third largest exporter of fossil carbon, behind only Saudi Arabia and Russia." I suppose that it all depends on your view of whether there is a "climate emergency". I will trust the opinion of the great majority of scientific opinion over the hydro-carbon industry. I don't enjoy the endless summer of reduced rainfall, rampant bushfires and famine. As the old saw states,"You pays your money and you takes your chances".
  8. Methusala
    That's not an argument, that's a debate!
  9. Methusala
    As the wings transmit lift to the fuselage (that is their 'raison d'etre') then the bulk of force will be as Marty suggests. However I don't disagree that the short cycle reversal of stresses would actually create most fatigue on the structure. I'm no engineer, simply trying to get a clear idea of what's happening. Don
  10. Methusala
    Forums ( The current entry from the Oxford Dictionary says: The plural of forum is usually spelled forums )
  11. Methusala
    No one that I can think of makes my stomach retch more than AJ. This is not about sexual identity, simply a wretched human being.
  12. Methusala
    Cracks may be ok in non-critical areas but , as you say, these appeared 1/3 into their expected life and there is no alternate load path. No excuse not to ground these. Boeing have lost the confidence of their market.
  13. Methusala
    I recall, though my memory is not what it was, that Stewart products are not listed as dangerous goods. I think poly fiber chemicals are. Will make a difference when importing/transporting same.
  14. Methusala
    I think that Col died testing an experimental rig designed to scoop water into a fire bombing a/c whilst in flight. Not a detailed memory but?...
  15. Methusala
    Col Paye restored a Spitfire. When asked would he do it again he replied that restoring one was enough. They were an extraordinarily complex bird.
  16. Methusala
    Dave is not a big guy, some of the Gere appeal to me is it's small size, remember designed 1931. About 300hrs no issues. I remember seeing this great aircraft at a Tumut BBQ. It is a tribute to the builder and a joy for the pilot. Rarely does one see such impeccable workmanship.
  17. Methusala
    G'day Red, The image of an Escapade in the quoted reference shows an aircraft with a small 1/4 window behind the door. It has, as I said , squared off empennage members and, quite frankly, looks not similar at all, to the aircraft shown in your post. Don't mean to be at all aggressive about this and enjoy your posts. Regards Don.
  18. Methusala
    The tail group in the Escapade are angular whereas the red aircraft you pictured have rounded extremities. I have an A Model Karatoo and it looks an image of the shown aircraft (except for the nosewheel), so Red, I believe that you are mistaken. Don
  19. Methusala
    Jesse Anglin J-6 Karatoo
  20. Methusala
    Had 'flapperons' on the Mk2 Kitfox. I found them to markedly reduce aileron effectiveness (especially at the reduced landing speed) and that flaps were, in any case, unnecessary to effect a well controlled landing. Side slipping was much better for controlling touch down.
  21. Methusala
    A Huey went down near Kiandra following power loss. One engine and, as I agree with Nev, a lot of complex machinery. Ghastly when one goes down in circs. where possibly avoidable. Fate is the Hunter.
  22. Methusala
    I suppose that I inhabit the bottom rung just about here. I learnt in a Pteradactyl that I assembled in the lounge room having got the fundamentals in gliding. Moved to a Tyro, then bought a Volksplane in which I accumulated 550 hrs over 11 years. Now I have a Thruster. I found that flying x-country in the VP became quite boring and doubt that doubling the speed would improve things. Just enjoy "slipping Earth's surly bonds" once or twice per fortnight and the Thruster does that for me. I have re-built the 582 that I fly behind and, knowing that any engine can be a time bomb, I fly accordingly. Maintaining and bonding with your engine (as with your wife) is a recipe for contentment.
  23. Methusala
    The aviation regulator is investigating whether the use of a drone to dangle a man over a reservoir breached rules. (1 hour ago on the SMH)
  24. Methusala
    There is a twin Jabiru engined Zenith home built. Saw it at Wedderburn earlier this year. Two seats and did not inspire me too much.
  25. Methusala
    Well, we're just back from FNQ where we caught up with Frank and Fran. They showed us hospitality north Queensland style with a trip up and down the Mullgrave river, tinny style, and a great flight over the cane fields, rivers and foothills. We saw 2 crocs, one at close quarters, as you can see in the photo below. Frank handles the Drifter as though he was born in the saddle. Thanks once again Frank.
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