Moltenmetal,
Just the flat statement "David is wrong on this one. It absolutely isn't in dispute in the scientific community". And then you go into an inept rehash of carbon dating. Methane form seeps has no C14. Methane and CO2 from hydrates under the permafrost have no C14. The organic...
moltenmetal,
Are you really and truly saying that CO2 levels were constant over geological time up until the industrial revolution????? Really??? The whole argument for your belief system is that CO2 is a precursor to temperature variations, and we know that there have been times where ferns...
Mongrel,
The whole "poison the earth for thousands of years" mantra from the e-NGO's has not proven to be true. Even something as awful as Chernobyl has ecosystems thriving in the high-radiation area. When the Chicago River was so polluted you could smell it from Michigan, there were still...
Moltenmetal
Interesting that you spell out 15 Giga Tonnes as 15,000,000,000,000 kg per year and then reluctantly admit that "While the natural flows of CO2 to and from the atmosphere are even larger still" without giving a number. Well, human additions to the global CO2 are very hard to find...
I've purchased both squat and tall 750 and 1,000 bbl tanks from West Texas (I live 400 miles away in NorthWest New Mexico), and had them trucked. The logistics start getting expensive at a squat 500 bbl (the tall 500 bbl is not even a wide load and doesn't require a pilot car), and can get...
When I need to change pipe diameter, reducing elbow's are my first choice. I once ran an FEA model on a 16X12 (DN400 X DN300) in gas at a Reynold's Number in the 108 range and gained nearly 0.5 psi (3.4 kPa) going from the small end to the large end. Running the same model with reducer and...
LittleInch,
I've seen a lot more of the mobile frac tanks remain on wells as production tanks in the last couple of years, but they are so much more expensive than an API-12F tank, that I'm not sure how the economics works out. Maybe the downturn made so many of them surplus that it makes more...
Mongrel,
I can't answer your basic question, and I wonder about it too. When the East River caught fire, we focused on human-scale problems and fixed it. When the Chicago River smelled like an open sewer, we focused on human-scale problems and fixed it. Same with the worst of the Smog in the...
Assuming that the flow is in the region where the Bernoulli Equation is valid (and most pipeline flows are), then you get a slight pressure decrease in the reducer as velocity increases, then a measurable (but still small) pressure increase from the reduced velocity in the two pipes. I've...
IDS,
Why don't you start a thread on this "principle" and stop hijacking this discussion? No one on eng-tips.com has any obligation to answer any question. We are all here for our own reasons and it bothers me that you won't accept that.
David Simpson, PE
MuleShoe Engineering
In questions...
I'm with MintJulep on this, it does not take much to draft a letter of intent, and while what they did is highly unethical, it probably is not a provable breach of contract. I will occasionally do work on a handshake, and I've never been burned by it, it still makes me squirm a bit until...
The 12D tanks are really rare in upstream. I see them every so often, but the convenience to move 12F tanks as a well's conditions change is just too valuable to opt for a huge 12D built in place.
David Simpson, PE
MuleShoe Engineering
In questions of science, the authority of a thousand is...
What is currently called biofuels is a truly insignificant portion of the hydrocarbons that nature produces every day. Basically everything that dies or is shed off a biological entity at sea is subjected to anaerobic decomposition. Same with swamps, lakes, and even sanitary landfills. Much...
RB1957,
Sorry, I was unclear. I was a nuclear mechanical operator on a U.S. Navy guided missile frigate in the 1970's. When we pulled into any port, there were protesters. San Francisco was bad (violent protesters). Melbourne and Wellington were cool (the dock workers went on strike over our...
IDS,
Sorry if you cannot see that I did answer your question.
David Simpson, PE
MuleShoe Engineering
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. Galileo Galilei, Italian Physicist
IDS,
According to Wikipedia, two ideas lie at the core of the "precautionary principle"
It is the second element that I have trouble with. If you've read my other posts in this forum you will have seen that I have great disdain for man's ability to effectively "manage nature" and I have...
rb1957,
Calling them "Fossil Fuels" does not change the fact that nature produces hydrocarbons at a very rapid pace. Hydrocarbons that were produced in previous millennia and happened to become trapped in the earth are now called "fossil fuels", but the stuff is being produced by the giga-tonne...
RVAMeche,
"People like me" also claimed the Eugenics was junk science. In fact "People like me" have led to every advancement in man's knowledge throughout time. People like me look at data. People like me look at reality without spin. It actually is impossible to discuss fabricated data and...
The "Greenhouse Gas" hypotheses absolutely says that the temperature in the troposphere must be warmer than surface temperatures. Every weather balloon data set and every satellite data set shows that the temperature in the troposphere is measurably lower than the surface temperature. Not...
RVAmeche,
Interesting position.
Would it not be a "solution" to "Climate Change" to begin treating the field the same way as every other scientific hypotheses in the history of man?
Wouldn't it be a "solution" to accept that weather balloon and satellite data independently show that while...
