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Comment Re:Requires a very high speed camera (Score 2, Informative) 142

No, you can pick up something higher than Nyquist, as long as you understand your sources of information and noise. It will alias down into the measurable range, and you can extract useful information from the alias. We have a system that operates up to 1 MHz using a 1.8 MHz ADC. When we know the signal is at 1 MHz, we extract the information at 800 kHz and use that.

What the GGP was talking about, though, was finding resonance on the bag where unique 30-Hz-width bands higher frequencies were being naturally modulated to baseband. If you had 100 points on the bag that each modulated a different frequency (30 Hz, 45 Hz, 90 Hz, ... 1500 Hz), you could extract the data from each sub-band separately and reconstruct the original signal. See http://en.wikipedia.org/wiki/F... and assume the source isn't one 1500 Hz conversation but instead one hundred 15 Hz conversations. And also assume that is one amazing bag of chips.

Submission + - Conservatives Release New Video Proving Global Warming is a Hoax (youtube.com)

An anonymous reader writes: Conservative Louisiana House of Representative Lenar Whitney has released a new four minute video on Youtube proving once and for all that global warming is a hoax. In the heavily referenced and peer reviewed video, Whitney puts to rest global warming — something "any ten year-old can invalidate." She points out the important fact that our planet "has done nothing but get colder each year." The highly polished video with special effects clearly exhausted all of Whitney's cognitive powers in researching and backing up each point in her proof that global warming is the "greatest deception in the history of mankind." Fat cat scientists and their propaganda machines don't stand a chance with this hardworking former oilfield equipment company sales employee to set the record straight.

Comment Over at Dice? (Score 4, Insightful) 315

Over at Dice

But we are at Dice, sir:

[Querying whois.publicinterestregistry.net]
[whois.publicinterestregistry.net]
Domain Name:SLASHDOT.ORG
Domain ID: D2289308-LROR
Creation Date: 1997-10-05T04:00:00Z
Updated Date: 2014-03-14T22:12:11Z
Registry Expiry Date: 2015-10-04T04:00:00Z
Sponsoring Registrar:Tucows Inc. (R11-LROR)
Sponsoring Registrar IANA ID: 69
WHOIS Server:

Referral URL:
Domain Status: clientTransferProhibited
Domain Status: clientUpdateProhibited
Registrant ID:tuE8gFbzWFO9qSj2
Registrant Name:Host Master
Registrant Organization:Dice Holdings, Inc.
Registrant Street: 1040 Avenue of the Americas
Registrant City:New York
Registrant State/Province:NY
Registrant Postal Code:10018
Registrant Country:US
Registrant Phone:+1.8557527436
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email:hostmaster@slashdotmedia.com

Pros: Today's article has more content than the usual Dice front page linkage. Great article if you're not a programmer but feel stymied by the wide assortment of languages out there. Although instead of hemming and hawing before making your first project you're better off listening to Winston Churchill and sticking your feet in the mud: "The maxim 'Nothing avails but perfection' may be spelt shorter -- 'Paralysis."

Cons: It barely scratches the surface of an incredibly deep topic with unlimited facets. And when one is considering investing potential technical debt into a technology, this probably wouldn't even suffice as an introduction let alone table of contents. Words spent on anecdotes ("In 2004, a coworker of mine referred to it as a 'toy language.'" like, lol no way bro!) could have been better spent on things like Lambdas in Java 8. Most interesting on the list is Erlang? Seems to be more of a random addition that could just as easily been Scala, Ruby, Groovy, Clojure, Dart -- whatever the cool hip thing it is we're playing with today but doesn't seem to quite pan out on a massive scale ...

Comment Re:$7142.85 (Score 3, Insightful) 419

A few laptops gets there.

The scam works better with a large purchase. Banks routinely deny transaction over some amount, forcing the retailer to call for an override code. Apparently the denial for "bad account" look identical to the one for "valid account, but that amount is high so give us a call, okay?"

If his card was denied for a $500 purchase, he'd need to convince the retailer that it was a bug in the system, not just a routine check for a large purchase.

Comment Re:The scammer's dream. (Score 1) 172

> That's why Bitcoin needs regulation

Regulation doesn't stop scams, it merely makes them more creative. Let's regulate 'till only lawyers can own a business? Scams could be not prevented but undone, by total transparency and traceability, which is easier to implement than you think ("the books have no trace of transactions involving you and this thing? then you don't own it").

But, unfortunately, transparency would expose powerful people and their tricks, so the powerful people allow STASI-like spying and your children groped at the airport, so you rebel and seek comfort in privacy. Checkmate, you lose.

I am against BTC regulation because every time you earn something real or money, from bitcoin or whatever, you should put it in the tax form else you're being dishonest. BTC, like virtual game goodies, fall in this category IMHO.

Comment Re:Ban caffeine! (Score 1) 511

I agree with the definition of pot as a gateway drug only because it is mostly harmless but illegal. Anyone taking it is already breaking the law, so why not do so with something else?

Having the law aligned with risk breaks the "gateway" argument; I agree with you that caffeine and alcohol etc. called gateways is ridiculous.

Comment Re:Server 2012 already looks like Windows 8. (Score 1) 322

You look at trees and miss the forest. Bash deals with unix commands and tools, that means that if I need OOP i can do it in the scripting language of choice, which comes in a no strings attached license. It also means that a one liner can produce a mastered standard video dvd with a transcoded and trimmed video clip.

Technology

MIT Combines Carbon Foam and Graphite Flakes For Efficient Solar Steam Generati 110

rtoz (2530056) writes Researchers at MIT have developed a new spongelike material structure which can use 85% of incoming solar energy for converting water into steam. This spongelike structure has a layer of graphite flakes and an underlying carbon foam. This structure has many small pores. It can float on the water, and it will act as an insulator for preventing heat from escaping to the underlying liquid. As sunlight hits the structure, it creates a hotspot in the graphite layer, generating a pressure gradient that draws water up through the carbon foam. As water seeps into the graphite layer, the heat concentrated in the graphite turns the water into steam. This structure works much like a sponge. It is a significant improvement over recent approaches to solar-powered steam generation. And, this setup loses very little heat in the process, and can produce steam at relatively low solar intensity. If scaled up, this setup will not require complex, costly systems to highly concentrate sunlight.

Comment Re:Completly Blindsided. (Score 1) 285

From the article, it sounds like CVUSD isn't an independent organization. The school districts where you live might be structured differently, so this might not be apparent to you.

In Texas, school districts are independent entities (ISDs) with their own taxing authority. The ISD owns the land and runs the schools. Board members are elected.

In Louisiana, where I lived for a while a long time ago, the parishes run the schools. There's a school board, whose members are IIRC appointed by the county commissioners, good ol' boy style. The schools have no tax authority and have to go to the parish for money or infrastructure requests.

It sounds like California organizes school districts more like the latter than the former, though a given county might have multiple districts instead of just one as in Louisiana parishes. The article describes the county limiting bandwidth use by CVUSD, something impossible to happen in Texas as the county has no authority over the ISD.

Likewise, and to your point, the article says that the county encouraged CVUSD to deploy the iPads, and from that CVUSD assumed the county had enough bandwidth to manage this. I guess that means the county is the district's ISP, and the district isn't allowed to change ISPs or contract with a private ISP. And the county IT maybe didn't know the district was going to do this, so they couldn't point it out and try to get a bigger pipe at that level. So they didn't see the problem because bureaucracy.

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