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This is true for ANY organic organism, not just trees.
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Possibly finding out WHY it was funded initially, and WHY it was 'mothballed' (I am guessing reduced funding) should combine to give you an answer.
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You might not get to work at NASA, but you can work toward your passion.
You may need some additional education, and you are taking good steps in that direction. Not gathering a lot of additional debt is also a good financial decision for now and your future.
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Ireland and Iceland have been some of the English speaking beneficiary countries. But there are more (not necessarily English speaking as a primary language).
This is why the US is about to do something to 'repatriate capital' in giving some tax breaks to bring some $$/capital back to the US. I think I heard there is about $20T and they hope to repatriate at least $2.5T of it. - but I could have the numbers off by a large factor too
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More complex/sophisticated/environmentally robust equipment take much longer. Getting new avionics is a 3 to 5 years cycle. It even takes the military 3 to 10 years to get development done for earth bound hardware.
The Nuke industry/govt agencies require 'hardened' hardware, that takes about as long as getting military OK for use.
Space craft life cycle, to keep from continuously re-engineering the same system many times before the first flight is 'frozen' at a stage that seems way to early in most venues. But that is what has been found as needed to be safe and reliable. It also becomes a 'religious issue' about not touching systems once they are 'flight ready'. Many of the designs, since they are 'one off' are not designed to be upgraded, at least not hardware wise. Even software upgrades are hard due to the 'flight ready' validation process. So unless a 'mission critical' need for 'uber new' hardware/software is found, it isn't going to happen (at least not in any 'market speed' speeds). So yes, we fly 'ancient' but reliable hardware.
How to get around this? Go work for NASA, get more funding, make it a priority to fly 'less outdated' equipment. I watched John Glenn go into space on TV. I watched the first foot steps onto the moon, live. I am proud of every step we have taken.
We have had very few pay the price over the years, and part of that price of keeping the payment in lives low is flying over-tested, over-worked, over-priced, outdated hardware.
I do want to fly newer equipment, but I don't want less safety. Flying fewer manned missions, and more 'robot' missions with newer hardware is one choice, but I don't want to give up on manned exploration. (Before the haters chime in, man in this case is mankind, being inclusive, not exclusive, in gender, race, etc. I do dislike feeling like I need to include explanations whenever I use words correctly, or having to be PC otherwise.)
He worked on home fuel cells that need hydrogen to work. His unit took in natural gas, release CO2, and kept the hydrogen for use in the fuel cell.
This is how most current commercial hydrogen is generated today, making it not very efficient way to get power (and NOT 'green' because of the mass CO2 release).
With this generator you could be off grid in town if you had a natural gas (methane) supply. Still the cost of electricity is way above the cost of commercial power, or even current solar costs.
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Time to go back to the drawing board to define what the term means, not just what is convenient.
Otherwise a 'computer professional' is asking you if you want fries and a malt with that burger just because they press a key on a 'data entry device'.
That is why when I told my boss I am an independent consultant. I hired him.
Working for him I don't need to do marketing, unless I want to leave. I don't deal with accounts receivable, because they pay me on salary. I still have customers, and vendors, but they may (or may not) work for the same company. My primary clients keep me around because I resolve their issues, and when the world goes right, I resolve their 'pain points' before they know they are painful.
For that, I reduced my overhead to the point where I can still live on what compensation I get. It still MUST be more than my cost of living or I will fire them as a customer and go and get another customer or more.
He didn't like my 'attitude'. That is OK, I didn't like his.
Eventually I left for non-job reasons. But it was a relief. I always hated working with/for difficult customers. A boss with a bad attitude is a bad customer.
Heard that the next Space Shuttle is supposed to carry several Guernsey cows? It's gonna be the herd shot 'round the world.