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How Does Tesla Build a Supercharger Charging Site?

jbengt Re:That's not quick? (190 comments)

It's pretty quick even compared to demolishing a gas station.

about a week ago

Ask Slashdot: How Dead Is Antivirus, Exactly?

jbengt Re:End state and private capitalism. (331 comments)

. . . but who would program the embedded systems in the lift pump system that keeps Florida from being underwater?

You say that like it'd be a bad thing.

about two weeks ago

Netflix Now Works On Linux With HTML5 DRM Video Support In Chrome

jbengt Re:Why is (201 comments)

I think "I could care less" is wrong, but I always thought it was supposed to be "As if I could care less"

about three weeks ago

The Great Taxi Upheaval

jbengt Re:Medallions (218 comments)

Talking to a Chicago cab driver of 28 years, what happened was a Russian bought 80% of all cabs in the city. He talked to the mayor and a year later there was a medallion law in Chicago costing $800k to operate a new cab.

I believe you have been misinformed. Chicago licenses cabs for a normal fee, not hundreds of thousands of dollars, but they have limited the number available (on some theory/excuse like that can drivers can't make a living if there are too many of them). Anyway, Many years ago, when Yellow Cab / Checker Cab had almost all the medallions, Chicago decided to expand the number of medallions, and held a lottery to give them out. Licensed cab drivers with so many years of experience had first shot in the lottery - not sure if the odds were weighted or not (for things like years of cab driving experience or military service). Anyway, my wife's step-father won one and sold it for $20,000. Medallions are bought and sold on the open market, and those prices have risen a lot lately. They are now around $300,000 each. The city of Chicago records the sales but does not make that money.

about three weeks ago

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.

about a month ago

Will Your Next Car Be Covered In Morphing Dimples?

jbengt Re:If dimples have this big an effect (138 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.

about a month ago

Will Your Next Car Be Covered In Morphing Dimples?

jbengt Re:11% fuel efficiency improvement (138 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.

about a month 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 a month and a half 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 3 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 4 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 5 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 6 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 7 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 8 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 8 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 8 months ago


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