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Comment Re:If dimples have this big an effect (Score 1) 138

Aircraft are not blunt objects, so they don't need as much help in keeping the airflow attached. Wings often have little angled vanes, (which do a better, more precise job of mixing high speed air into the boundary layer than dimples do) in order to keep the flow from detaching, and to keep the air moving across the wing rather than along it.

Comment Re:11% fuel efficiency improvement (Score 1) 138

Aircraft designers already pay attention to separation of the airflow from the vehicle body (which is what the dimples reduce, by mixing higher velocity flows into the boundary layer). The long, streamlined, tapers at the tail do a better job than blunt objects with dimples. And many wings have small, angled fins along their length to ensure that the flow stays attached to the top of the wing and flows across the wing camber rather than following along the length of the swept-back wing.

Comment Re:Has this ever happened to you? (Score 1) 216

Typical AC will chill the air until it's colder than the desired temperature to dehumidify it and then warm it back up.

Typical AC will chill the air below the dewpoint, but will not reheat that air (except for the couple of degrees that the heat of the fan adds). In fact, most energy codes prohibit using energy to cool and then using more energy to reheat (except in certain circumstances where it may be vital, such as humidity-controlled labs, pharmaceutical plants, etc.). Only the more sophisticated, expensive AC systems reheat - those typically have some sort of heat exchanger to reheat supply using warm outdoor air or exhaust.

Comment Re:That's totally how it works (Score 1) 343

you can see that actual employment has been steadily falling since the 1960's in the USA, typically taking a dive after each recession, then regaining some but not all of the previous employment

Bull. In the sixties, most married women were not "employed", yet were not counted as "unemployed". The workforce per capita has increased greatly since then (yet real income has not risen commensurately).

Comment Re:i interpret it to mean (Score 1) 497

Replying to undo a fat-fingered moderation.
A law is not a theory. A scientific law is based on observation, but it is more akin to an assumption or premise, taken as a 'given', while a theory is an attempt to give an understanding of reality that explains observations and allows predictions.

Comment Re:Way to state the obvious (Score 1) 552

false, the Sun and insolation drives climate and climate change, greenhouse gas effects are secondary

Invalid, that does not contradict TFS or TFA. The point being made is not that solar activity is a minor influence, but that that changes in solar isolation cannot account for the patterns of climate change over the last millennium in the northern hemisphere, and that effects of volcanism and greenhouse gases fit the data better.

Comment Re:NSA failed to halt subprime lending, though. (Score 1) 698

Except of course for the fact that the words themselves . . . actually do mean a form "raises the question".

Maybe if the phrase was something like ".. which begs to ask the question. . . ", otherwise, the "plain English" meaning of words themselves is that you are talking to a question, begging for something from it. (please, Mr. Question, may I have a dollar for a cup of coffee?)

Comment Re:NSA failed to halt subprime lending, though. (Score 1) 698

People forget that the NSA has actually done a _lot_ over the past century that has been of extreme benefit

The NSA has only been in existence about 60 years. Yes, it had it's precursors in code-breaking military intelligence units in WW1 & WW2, but it was President Truman who secretly established the NSA (known as "No Such Agency")

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