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Everything posted by EdEarl
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My favorite scientist is Stephen Hawking, not for his science, but for the way he has persevered in the face of being disabled shortly after he graduated.
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I look at this issue differently. The Earth is my home, and so I treat it like my house. A number of people say my home may be affected by global warming. In other words my house may be in danger, and as I live in it and cannot escape if it burns down, I need to protect my house (home). Insurance to recover damages is not good enough, because if it burns down, I could be killed. I need to do something to save myself in the event of a fire, or I need to make damn sure there is no fire. The experts say I cannot be protected from a fire, the house is too big and impossible to make me safe, in fact, since everyone else lives beside each other and their houses abut mine, it is possible everyone will perish in a fire storm. The UN says 10F global warming by 2100, which some others say will release the methane hydrate from the ocean and cause another 10F warming. At 20F warming, a 95% mass extinction is possible with no human surviving. I believe no one wants such a thing to occur; however, we cannot guarantee it will not happen--there is a finite probability it will occur. We can work hard to reduce the possibility, and maybe make it 99% probable we will survive. On the other hand, we can do nothing and live with a higher probability we will be wiped out by a mass extinction. What do you want?
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Sorry, my experience is as a bread breaker.
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https://scontent-b-iad.xx.fbcdn.net/hphotos-prn2/t1/988401_734832163215125_584755533_n.jpg
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There are more efficient panels, and less efficient. The ones sold in greatest amounts are the ones that are typically less expensive per area per watt installed. But, as more efficient panels become less expensive; they will become more popular.
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Yes! Apparently the price of solar panels is low enough to be competitive with oil and coal fired power plants. http://www.greentechmedia.com/articles/read/chart-2-3rds-of-global-solar-pv-has-been-connected-in-the-last-2.5-years http://www.kare11.com/story/news/local/2014/03/09/solar-power-demand-outstripping-mn-subsidy-program/6229989/
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Added, sorry about that.
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For all you flying buffs, here is a tech toy to put on your wish list, at the moment a bit expensive for most of us. This flight demonstrates that personal pleasure flying can be green, except for battery technology that typically uses environmentally unfriendly chemicals. However, work on ultracapacitors and greener batteries should eventually green electricity storage too. See also: http://www.solar-flight.com/ http://www.solarimpulse.com/
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Seems they are guesstimates. And, know the number of stars in Andromeda better than the Milky Way. Due to the large number of mini-galaxies (star clusters), I thought there might be fewer than 100 billion. But, the count of galaxies might not include star clusters, IDK what is visible in the Deep Field and Extreme Deep Field photos.
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The Milky Way has been estimated to have 100-400 billion stars, and there are galaxies much smaller and much larger. What is the average size of (number of stars in) a galaxy?
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can someone please help me with this simple c program
EdEarl replied to darrellclrk15's topic in Computer Science
When written and used properly, a recursive function will not normally run out of memory; at least simple ones. You might write a recursive sort and try to process so much data it runs out of stack or memory. C functions do not spawn threads or processes unless specifically made to do it. -
can someone please help me with this simple c program
EdEarl replied to darrellclrk15's topic in Computer Science
Recursion is a kind of loop, implemented by a function calling itself. int factorial( int i) { if i==0) return(1) else return(i*factorial(i-1)}; /* only valid for i>=0 */ It's been a few years since I wrote a program, so this recursive definition of factorial might be buggy. -
Many Ocean Fisheries Previously Under Reported by 95%
EdEarl replied to EdEarl's topic in Science News
LOL. Well, if you want to change it again from "Fish" to "Fisheries" it's OK with me. Thanks. -
Many Ocean Fisheries Previously Under Reported by 95%
EdEarl replied to EdEarl's topic in Science News
Sorry about that. I'll ask for a title change. -
See also: phys.org This is good news for the ocean, because so much of the worlds fisheries are untouched and because these fish avoid nets.
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Both motor and generator have friction losses, magnetic losses, and electrical losses; the net result of running a motor to turn a generator is loss of power. You cannot get something for nothing.
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Should meat and cheese be labeled as cigarettes are labeled?
EdEarl replied to EdEarl's topic in Science News
All the essential amino acids are available from plant sources; thus, there is no need for animal protein. B12 supplements are necessary as they are not available from plants. That doesn't mean one needs to eat meat. -
Should meat and cheese be labeled as cigarettes are labeled?
EdEarl replied to EdEarl's topic in Science News
I didn't write the article in MedicalxPress, or do the related research. There are millions of people who live vegan life styles, including many Buddhists. I think there is no proof that a vegan life style is unhealthy. -
Emphasis mine. This news means switch to a vegan diet. Information I've been studying indicates there is more bad news about eating meat than this study indicates. If you really try to switch, don't rush it. If it takes a year or ten years to switch complete, it is better than not switching.
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There is some science to do if you make a better mouse trap, and many people buy mouse traps. It is not the product that is important, it is figuring out how to make it better in some way, which may mean less expensive. You might provide exactly the same kind of mouse trap as your competitors, but use science to improved the manufacturing process; thereby, making a less expensive mouse trap. In this age, making a thing greener is one kind of improvement, which may mean making the factory greener, rather than directly changing the product.
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Thus far, this thread seems to be focused on semantics. S1eep has defined unnatural to be some things man-made, and perhaps all. Moontanman and Acme argue that the Universe is natural, and nothing is unnatural. Perhaps the discussion can begin anew.
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Woolly Mammoth were adapted to a cold climate, I think. With the climate heading into hellish heating, perhaps we could put a herd on Antarctica. I expect Siberia and Canada will be too warm. However, if we revive the mammoth, we would should revive a number of other animals to make a diverse biosphere, and I don't think that the genes are available to do that. On the other hand, we might release wolves, rabbits, deer, elk, mice, rats, and Siberian tigers, etc. to simulate a diverse Eco-sphere.
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I recommend pygmy goats, which are primarily browsers, meaning they will keep the trees clean from ground level to as high as they can reach. Then, the will eat grass. Pygmy goats are from 40cm to 60cm high. The main problem you may have is protecting them from dogs and coyotes. Get at least two so they will not get lonely. You should have at least an acre of land to justify keeping two of them; even so you will have to buy some food for them..
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How to reverse global warming - IRRIGATE deserts
EdEarl replied to Airbrush's topic in Climate Science
The site you referenced seems to be a partial business plan, without any technical information. Thus, it is not possible to assess viability of the incomplete business plan.