mjdrzewi - Slashdot User

Comment Re:I must be misunderstanding (Score 0) 162

by mjdrzewi on Tuesday December 06, 2011 @08:37PM (#38286762) Attached to: Gas Powered Fuel Cell Could Help EV Range Anxiety

Doesn't this just turn your EV into a less-efficient gasoline-powered vehicle?

There's a common misconception that because an EV puts out no emissions, that it's 100% clean. And that because electric motors are 80%-90% efficient, EVs are 80%-90% efficient.

That number conveniently ignores the battery efficiency.

So lets re run those number including every thing.

Fuel to electricity 40% ( Generation plant)

Transmission ~90%

Battery Depends on chemistry

NI-MH ~66%

Li-ion ~80-90%

NiCd ~70-90%

SOFC ~60%

DC Motor 75-92%

Bottom Line From fuel to road

Best case 30%

Wost case with current EV batteries 18%

Modern ICE 20-25%

SOFC EV 45%

Comment Re:Here's a novel idea (Score 1) 214

by mjdrzewi on Saturday July 09, 2011 @02:43PM (#36706372) Attached to: Ex-NSA Chief Supports Separate Secure Internet

Right now if you are an utility with any significant amount electric generation you have to be connected to the internet. That is where you markets are to sell your electricity to transmission providers.

Submission + - Team Fortress 2: Free to play, forever (gamepron.com)

Submitted by dotarray on Thursday June 23, 2011 @09:45PM

dotarray writes: If you think about it, it was slightly obvious. Steam started supporting free-to-play titles. Valve then confessed that it was working on one of its own. Valve also announced the “biggest, most ambitious update” in the game’s history.
and we still didn’t put the pieces together. We all assumed that the company was referring to an unreleased game, perhaps Dota 2. We slavered in anticipation of Meet the Medic. We were very pleased that Steam was broadening its horizons.
Until today, when the penny dropped: Team Fortress 2 is now free-to-play, supported only by microtransactions.

Submission + - France Bans Facebook And Twitter From Radio And TV

Submitted by Anonymous Coward on Saturday June 04, 2011 @08:40PM

An anonymous reader writes: In France, radio and television news anchors are no longer allowed to say the words “Facebook” and “Twitter” on air, unless the terms are specifically part of a news story. The ban stems from a decree issued by the French government on March 27, 1992, which forbids the promotion of commercial enterprises on news programs.

Submission + - Is SHA-512 the way to go?

Submitted by crutchy on Saturday June 04, 2011 @07:36PM

crutchy writes: When I was setting up my secure website I got really paranoid about SSL encryption, so I created a certificate using OpenSLL for SHA-512 encryption. I don't know much about SHA (except bits that I can remember from Wikipedia), but I figure that if you're going to go to the trouble (or expense) of setting up SSL, you may as well go for the best you can get, right? Also, what would be the minimum level of encryption required for say online banking? I've read about how SHA-1 was "broken", but from what I can tell it still takes many hours. What is the practical risk to the real internet from this capability? Would a sort of rolling key be a possible next step, where each SSL-encrypted stream has its own private/public key pair generated on the fly, and things like passwords and bank account numbers were broken up and sent in multiple streams with different private/public key pairs? This would of course require more server grunt to generate these keys (or we could take a leaf from Google's book and just have separate server clusters designed solely for that job), but then if computing performance was a limiting factor, the threat to security of these hashes wouldn't be a problem in the first place. I guess with all security infrastructure, trust becomes a more important factor than technical abilities. Can I trust that my SSL provider hasn't been hacked (or at least snooped)? How do I know some disgruntled IT admin hasn't sold the private key of his company's root CA to the same organisation that developed the conficker virus? It would certainly make for a more profitable payload. I've read some of Bruce Schneier's work (I'm subscribed to Cryptogram) and he tends to highlight the FUD that surrounds internet security, and I agree that there is a lot of FUD, but complete ignorance and blase attitude toward security can also be taken advantage of. Where is the middle ground?

Submission + - Student suspended for posting on YouTube (theglobeandmail.com) 2

Submitted by Anonymous Coward on Saturday June 04, 2011 @10:08AM

An anonymous reader writes: A Canadian student has been suspended from school and had the police called on him due to satirical animations that he posted to YouTube.

Jack Christie, a 12th-grade student at the Donald A. Wilson Secondary School in Whitby, Ontario, Canada, created the videos in his own time, off-campus.

Comment Re:Obviously we MUST do this! (Score 1) 454

by mjdrzewi on Wednesday June 01, 2011 @07:44PM (#36314322) Attached to: California Assembly Approves Internet Tax

Hmmm. Lets take a look at profit margins: AMAZON.COM Profit Margin 24.1% BP Profit Margin: 8.14% Exxon Mobil Corporation Profit Margin: 9.34% Apple Profit Margin 40.7% Hmmmmm them oil companies and there high profit margins hmmmmmm.

Comment Re:All of the above? (Score 1) 436

by mjdrzewi on Sunday May 15, 2011 @11:13PM (#36137218) Attached to: What's Your Favorite Renewable Energy

Isn't all energy technically solar power. Geothermal heat from sun, nuclear created in super novas ( not our sun but other stars), coal dead plants which got it energy from the sun. And solar not really renewable it just we have a ~ 5 billion year supply.

Comment Re:Missing option... (Score 1) 458

by mjdrzewi on Friday April 29, 2011 @01:06PM (#35976494) Attached to: For Security, My Wi-Fi Access Point Relies On:

Exactly the only secure wireless off wireless.

Submission + - NVIDIA To Unlock SLI For AMD 990 Series Chipsets (vr-zone.com)

Submitted by Anonymous Coward on Thursday March 31, 2011 @12:06PM

An anonymous reader writes: For so long, AMD enthusiasts have to resort to unofficial patches to make SLI work on their boards but not anymore. NVIDIA has finally agreed to make their SLI technology available for AMD 9-series chipsets boards supporting the Zambezi processors based on Bulldozer architecture.

Submission + - New giant offshore wind turbine with 80 m wing (reuters.com)

Submitted by jackd on Wednesday March 30, 2011 @04:01PM

jackd writes: Quite an interesting news piece on a new giant wind turbine being able to produce a whopping 7 MW, designed for rough sea conditions. Each new Vestas turbine will be able to provide electricity for 6,500 homes. The turbine has a greater capacity to generate electricity than any machine currently working at sea. Can't help but think this announcement is relevant in the face of the nuclear troubles, but how can they possibly cope with energy demand, or compete with one 1,000 MW nuclear plant.

Submission + - Is Samsung putting keyloggers on their laptops? (networkworld.com)

Submitted by Anonymous Coward on Wednesday March 30, 2011 @03:18PM

An anonymous reader writes: Two brand new Samsung laptops both have a keylogger installed. After calling Samsung tech support, they supposedly admitted to it. After the amount of press the Sony BMG problem got, I'm surprised this isn't a big uproar.

Part one: http://www.networkworld.com/newsletters/sec/2011/032811sec2.html
Part two: http://www.networkworld.com/newsletters/sec/2011/040411sec1.html

Submission + - AMD's Ontario APU impresses in $330 Acer netbook (techreport.com)

Submitted by crookedvulture on Wednesday February 16, 2011 @03:09PM

crookedvulture writes: AMD's Ontario APU is billed as an Atom killer, and Acer has put one into an Aspire One 522 netbook that looks very impressive. For just $330, you get a dual-core CPU with integrated Radeon graphics capable of smooth HD video playback and decent gaming performance. The 10" screen offers a 720p resolution with far more pixels than typical netbooks, and real-world battery life pushes 6.5 hours while surfing over Wi-Fi. There are issues, such as too little RAM and an anemic Starter edition of Windows 7, but those flaws are easy to forgive given the system's bargain price. It's amazing what you can get from a low-end ultraportable these days.

Comment Re:Hoorah! (Score 1) 2424

by mjdrzewi on Monday March 22, 2010 @10:03AM (#31567366) Attached to: House Passes Massive Medical Insurance Bill, 219-212

No it is a sad day in America more big government more taxes. The government need to stop meddling in my affairs, now I will have to pay to not have something.

Comment Re:WTF!! (Score 1) 293

by mjdrzewi on Saturday September 26, 2009 @01:12PM (#29549101) Attached to: $529M Gov't Loan To Develop $89,000 Hybrid Sports Car

10% fucking unemployment.

I wish we had only 10% unemployment here in Michigan its 15% and including the people who no longer count it around 20%. And I have to ask my self why is the US taxpayer funding a Finnish car company to build a luxury hybrid sports car, that in all reality most like will never be built on any production scale. Why am I paying for this? How is this stimulus for our economy? Why are we spending money we don't have and never will. Isn't that what got us in to this mess in the first place?

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