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Amazon's Ambitious Bets Pile Up, and Its Losses Swell

jbengt Re:23% revenue growth! (168 comments)

Accounting tip: infrastructure investment doesn't show up in a profit and loss statement.

Actually it does show up there, but it's amortized over several years/decades.

3 days ago

Will Your Next Car Be Covered In Morphing Dimples?

jbengt Re:If dimples have this big an effect (136 comments)

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.

3 days ago

Will Your Next Car Be Covered In Morphing Dimples?

jbengt Re:11% fuel efficiency improvement (136 comments)

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.

3 days ago

FCC Approves Plan To Spend $5B Over Next Five Years On School Wi-Fi

jbengt Re:Wi-Fi Is Less Expensive (54 comments)

Not if you're installing the wiring in a school built in the 20's with masonry walls, no dropped ceilings, and flat arch clay tile floors.

about two weeks ago

Who controls the HVAC at work?

jbengt Re:Has this ever happened to you? (216 comments)

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.

about 2 months ago

Ask Slashdot: Does Your Job Need To Exist?

jbengt Re:That's totally how it works (343 comments)

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).

about 3 months ago

I prefer my peppers ...

jbengt Re:Depends on the dish (285 comments)

Until I finally moved out on my own (a few decades ago), I hadn't realized food was supposed to have so much actual flavor

Those who routinely eat extremely spicy food also don't realize that food is supposed to have so much actual flavor.

about 4 months ago

Can Science Ever Be "Settled?"

jbengt Re:i interpret it to mean (497 comments)

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.

about 5 months ago

Midwestern Fault Zones Are Still Alive

jbengt Re:On the other hand (115 comments)

The current building code in St Louis is written with earthquakes in mind, it's ust that there are a lot of older buildings that are still vulnerable.

about 6 months ago

I'd rather pay for my space latte with ...

jbengt I take my coffee black (265 comments)

Didn't vote, since I don't drink lattes, you insensitive clod.

about 7 months ago

Sun Not a Significant Driver of Climate Change

jbengt Re:Way to state the obvious (552 comments)

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.

about 7 months ago

NSA Says It Foiled Plot To Destroy US Economy Through Malware

jbengt Re:NSA failed to halt subprime lending, though. (698 comments)

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?)

about 7 months ago

NSA Says It Foiled Plot To Destroy US Economy Through Malware

jbengt Re:NSA failed to halt subprime lending, though. (698 comments)

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")

about 7 months ago

About 25% of Applications Have Errors

jbengt Re: Human error (157 comments)

Except with Obamacare, it's the law that you have to use the 1.0 buggy release.

It seems like you are conflating the website with the law. You do have to get insurance, but you do not have to use the website.

about 8 months ago

Moore's Law Blowout Sale Is Ending, Says Broadcom CTO

jbengt Re:A decade long product cycle sounds good to me (267 comments)

IIRC, the separate "core" CPI that leaves out food and energy is for short term comparisons since food and energy can be very volatile. Large short term swings in those commodities can mask the "real" inflation rate in monthly reports. Of course, prices of food & energy are still part of the cost of living, and are considered in the CPI.

about 8 months ago

Tech Companies Set To Appeal 2012 Oracle Vs. Google Ruling

jbengt Re:Isn't it ironic... (198 comments)

I don't know that it is entirely clear that without clean room BIOS, IBM would have dominated.

That is not what the GP was saying. GP was making the point that in a more heterogeneous hardware environment, MS would not have been able to build a monopoly based on a single dominant operating system.

about 8 months ago

Tech Companies Set To Appeal 2012 Oracle Vs. Google Ruling

jbengt Re:Bull hockey (198 comments)

Let's avoid the battle over "originality" and "creativity" and note that the issue at hand is actually whether the code in question is expressive or functional.

about 8 months ago

Tech Companies Set To Appeal 2012 Oracle Vs. Google Ruling

jbengt Re:Bull hockey (198 comments)

You can only get a copyright on an original work

You can only get a copyright for original expression, it does not cover the functionality expressed.

about 8 months ago


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