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Comment Re:missing quote (Score 3, Insightful) 45

OK, Internet super-engineer. You clearly do not know anything about aircraft or spacecraft structures.

Materials used for small drones have a very difficult time scaling up to very large lightweight structures. Care to expound on the loads and stresses experienced by a 144 foot wingspan wing, that weighs only 900 lbs? This drone was built to be light and barely strong enough. That was its design point. Have you shown the world that you can do better and can credibly criticize their design?

Extremely high aspect ratio wings, like this one, just don't want to quit flying. It is a real challenge to bring it down onto the ground. The pilots possibly exceeded design Vne trying to get it down. This exponentially increases drag forces on the airframe. Ground-effect makes landing even more difficult, and with a 144 foot wingspan, ground-effect starts at ~72 feet above ground.

Add to this the non-homogeneous nature of gusting winds in proximity to the ground, and it is not inconceivable that design limits were exceeded by a fluke of nature. There is not enough public information of what weather conditions existed during landing, but sudden adverse conditions during landing are not unprecedented. Did Lockheed's engineers under-design the structure on the L-1011?

Disclaimer - I work for an aerospace prototyping firm (not related to Facebook), and have worked on things that cover the conceivable gamut of Reynolds numbers that can be "flown". Although I have not worked on Facebook's drone, I have an intimate knowledge of the modern materials used in this air vehicle. My opinions expressed here are my own.

Submission + - Top Democratic senator will seek legislation to 'pierce' through encryption (dailydot.com)

Patrick O'Neill writes: Sen. Dianne Feinstein (D-Calif.) will seek legislation requiring the ability to "pierce" through encryption to allow American law enforcement to read protected communications with a court order. She told the Senate Judiciary committee on Wednesday that she would seek a bill that would give police armed with a warrant based on probable cause the ability to read encrypted data. "I have concern about a PlayStation that my grandchildren might use," she said, "and a predator getting on the other end, and talking to them, and it's all encrypted. I think there really is reason to have the ability, with a court order, to be able to get into that."

Comment Where to start... (Score 1) 1

The headline mentions SMS, but that isn't involved or even mentioned anywhere in the article. Their POC program sent an SMS through a third-party server.

The "researchers" are trying to sell a competitor to the built in Keychain.
Their proof of concept showed them using an unlocked keychain to add the new key. This lowers the threshold to access the keychain, because it is already unlocked. Keychain Access is buried in the Utility folder that most non-savvy users have no idea that it even exists, so they would be very unlikely to unlock the keychain in this way.

Their malicious app had to be installed around the gatekeeper system. By default the gatekeeper blocks anything that isn't secured with a trusted certificate. It would have to be turned off to install.

In short, this requires a series of dumb actions by the user, most of which are not shown in the POC video.

When you unlock a bunch of doors and invite the thief in for tea, you may find your silver missing.

Comment Re: Linux sales figures (Score 1) 132

Certain Steam games have followed me from Windows, to OS X and now Linux. This is a significant extra value and very convenient and I really hope that Valve manages to get a significant portion of the gamer crowd to switch. For me it's simple, if the game does not run in linux, I won't play it. Wine and emulators like DosBox are thankfully available to play some #oldwarez and the occasional game of SCII.

Comment Re:Hopelessly off-target (Score 1) 409

Where I was going with my original comment was that the CEO I was talking to was an "all of the above" alternative supporter. Algae, switchgrass, wind, nuclear, biomass conversion, butanol, solar, etc. Most environmentalist I know, pick and choose. Pro-wind, but not nuclear. Pro-nuclear, but not wind, because the windmills kill birds. Here where I live, we have about 40 eagles (brown and bald) killed a year in the wind farm, and there is a big worry about the California Condor, as this is part of their range.

To my knowledge, these energy companies don't try to discredit anybody, as it is not personal. They may fund attempts to verify or discredit faulty experiments, because bad policy built on faulty science is prone to damage their business. The scientific process includes aspects of independent verification. If an experiment cannot be reliably repeated, then there was an error in the process. Honest scientists welcome verification by adverse critics, as it proves their experiment as valid. If your published work cannot be repeated, or if it does not stand up to independent verification, then it isn't valid.

The energy companies want honest results from all of the research they do. If a promising technology doesn't add up now, they keep working on it until it does. Many of the environmentalists I know, keep pushing very sub-optimal technology as a solution, ignoring the total burden. It's great that you can make it work off grid, but if that requires 20 lead-acid cell batteries, a wind turbine, six solar panels, a diesel generator and a propane tank to power your minimal electrical consumption, then there is a problem. Especially if the twenty year cost of maintenance is over twenty times the cost of conventional grid and gas service.

I advocate for intellectual honesty. I'm not a member of any cult, and I think that cults have no place in scientific debate. Most people I know of who do not subscribe to man-made global warming theories and who have actively examined the plausibility of theories with real-world data, have zero connection to energy companies. They don't want to be treated like mushrooms, and when they attempt to verify analyses and inquire about raw data, rather than "filtered" data, they are met with stone walls. This how the pursuit of intellectual honesty is met by charlatans.

Conversely, I have sat in a few lectures by academics, who were funded explicitly because their research was in search of more "evidence" of man-made global warming. In one case a very sincere academic lectured about his hair-brained scheme to re-sequester CO2 by building giant artificial waterfalls with a particular mineral (don't pay attention to the energy required to quarry the rock or pump the water). I believe many were very good people, who were faced with the problem of finding continued funding for their research. Just like mediaeval artists, the funds keep flowing, if you paint what your patron wants. This is the current problem where dogma has largely been substituted for intellectual and scientific honesty in this field, because funds are tied to the outcome. The few climate scientist who have changed their position from pro-man-made to semi-skeptical, have been ostracized and treated as apostate from the cult.

Greenhouse gasses are to the anti-oil crowd, what bullets are to the anti-gun crowd. It is a means to a political end. The political/religious attacks on energy companies do not make poor alternatives work any better. There is no big oil conspiracy to thwart alternatives. In their labs, they are well-ahead of any of these rink-dink companies that waste our taxpayer dollars.

-- Len

Comment Re:Hopelessly off-target (Score 1) 409

You cite industries that are built off of intangibles. Energy is a commodity, and the companies in that field are very concerned with cost and profit. They have defined costs, and a huge market that is inelastic. Most of their products are amazingly cheap, given the processing and logistics of delivery.

Music and newspaper are not necessities. Demand of their product is fickle, and the purveyors of this entertainment product are not bright enough to hedge for their demise, as their product is not based on a finite and diminishing resource. I assure that there is always another version of Lady GaGa, ready to be "discovered". That these companies were caught flat-footed by the internet says nothing about the forward vision of the energy sector.

The DoE program is not the right path. It is an attempt to pick winners, regardless of technical merit. Others have gone into Solydra and others, so I won't go there, except to say that these wasteful failures were inevitable. The winners were picked more by political contribution than likelihood of success.

I don't have a clue where you are going about NASA and SpaceX.

-- Len

Comment Re:Hopelessly off-target (Score 1, Interesting) 409

I don't post all of my conversations with windmill technicians on the internet, or I would cite it for you. Not knowing where you are, I'll post a link to picture of the windmills.

Here's is a picture of the farm. I couldn't find a close-up of the turbines, but each one has dark grease streaks down the support pylons. Each turbine has a complex gearbox and transmission that varies the blade angles, to keep the turbines turning at a constant speed. This is tough to seal, and in practice, there is no seal replacement. The turbines are operated to destruction, and replaced only if economically viable. The only thing staving off the destruction is constant refilling of the gearbox lubricant. These fields are just about as polluted as the the grounds of any oil refinery in the U.S.

-- Len

Comment Re:all the astroturf in this article amazes me... (Score 1) 409

Perhaps if I had cable...

I prefer to dig into topics until I have a solid factual basis to form my opinions. It is called being intellectually honest. You may want to try it sometime, at least to give some backing to your righteousness.

I'm not dismissive of you because of any "news" outlet you may or may not use, so I'd expect the same courtesy.

-- Len

Comment Re:all the astroturf in this article amazes me... (Score 1) 409

I appreciate that an AC thinks I am an astroturfer, but I assure you I am not. I don't work for any energy company, and I don't actually know anything about the Koch Brothers, although I gather they are somehow like a George Soros of the right.

Don't assume that because someone doesn't agree with your point of view, they are bought and paid for by some monied entity. Blind adhesion to an ideology is an expensive sort of ignorance. Get better educated by venturing outside of whatever echo chamber you occupy. Ask just as many questions about that which you believe, as you would about that with which you disagree.

Without questioning everything, you never will know how weak or solid your position is. It is my opinion that many politicians, the President not the least of whom, rely on the ignorance of the general populace to repeatedly build straw men. Most of these are flimsy facades held together with sneering rhetoric, and little factual basis. There are villains in the corporate world, but the vast majority of public companies are not the malevolent actors that they are painted as. Most are afraid of the regulatory clubs that the government wields.

-- Len

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