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Aral Sea Basin Almost Completely Dry

Jerrry Mono Lake (151 comments)

The same thing is happening to Mono Lake in California. The city of Los Angeles has been diverting the streams that feed the lake for decades and it's slowly drying up.

about 4 months ago

Drought Inspires a Boom In Pseudoscience, From Rain Machines To 'Water Witches'

Jerrry Re:Could try sacrificing virgins (266 comments)

"but it's California, so they may be hard to find."

Only if you restrict said virgins to females. There are plenty of male nerd virgins living in their parent's garage (we generally don't have basements here).

about 5 months ago

Magnitude 6.0 Quake Hits Northern California, Causing Injuries and Outages

Jerrry Strongly Felt Here (135 comments)

I'm in Northern Contra Costa county about 12 miles from the epicenter and felt it strongly here. The shaking lasted about 11 seconds and was pretty intense.

No damage here, as we have everything secured and the house is designed to withstand a much larger quake.

about 5 months ago

Parallax Completes Open Hardware Vision With Open Source CPU

Jerrry Re:Performance? (136 comments)

"I wonder how this CPU performs? Does it compare to anything I'd care about, or is it more akin to something I'd build a wifi router out of?"

The Propeller is an interesting beast. It has eight 32-bit cores they call cogs and a hub that ties them all together and gives each of them round-robin access to the 32K of hub RAM. Each core itself only has 2K of RAM it can access, so any assembly program has to fit in this small space.

Most the the time, you don't write assembly code (unless you need the speed), but use Spin instead. Spin is a proprietary, interpreted language. Each cog can host a separate version of the Spin interpreter, and tokenized Spin code is fetched out of hub RAM, which is much larger than cog RAM (32K vs 2K), so Spin programs can be larger.

There's also a C compiler that has a strange implementation given that cog RAM is too small to hold more than a trivial program if the code were entirely cog resident.

One other difference between the Propeller and most other microcontrollers (AVR, PIC, ARM, etc.) is that the Propeller has no built-in peripherals. The philosophy behind the Propeller is that if you need a peripheral, you implement it in software and run it on one of the eight cogs. Need a UART (or six)? It's just a matter of software. It is somewhat wasteful, however, to dedicate an 80 MHz 32-bit processor to a simple I/O task -- that might offend some purists. Since all peripheral functions need to be implemented in software, it's not possible to directly implement peripherals that run at high data rates, such as 480 Mb/sec USB.

The Propeller also lacks interrupts. The logic here is that since you're dedicating a full 80 MHz processor to an I/O function, you can poll without affecting any of the other processors and hence don't need interrupts.

All-in-all it's an interesting and unusual architecture, but I don't see it replacing more mainstream MCUs anytime soon.

about 6 months ago

Jesse Jackson: Tech Diversity Is Next Civil Rights Step

Jerrry Professional Victim (514 comments)

Jesse Jackson is a Professional Victim. 'Nuff said.

about 6 months ago

Let Spouses of H-1B Visa Holders Work In US, Says White House

Jerrry Re:seems like a back door (566 comments)

Just goes to show, once again, that we have the best government money can buy.

about 9 months ago

Nest Halts Sales of Smart Fire Alarm After Discovering Dangerous Flaw

Jerrry Re:Does everything need to be smart? (128 comments)

"Yes. That's why fire sprinklers are so successful. There's nothing between the water and the fire except a low-melting-point component in the sprinkler head."

Sprinklers are something you really don't want to fail, because both scenarios are destructive. If the sprinklers fail to work as designed, your house burns down. If they go off without a fire, you have lots of water damage, which is almost as expensive to fix as fire/smoke damage.

about 10 months ago

High Tech Companies Becoming Fools For the City

Jerrry Re:Soul Crushing? (276 comments)

Well, here's what I think they're after: City centers (assuming there is a city center, not all cities have them), tend to be areas filled with the things that make the city unique: tourist attractions, public artwork, nifty historical architecture, headquarters skyscrapers of well-known businesses, etc.

Yes, but they're also full of bums/beggars, filth, graffiti/grime coated buildings and streets, noise (constant car horns and sirens), congestion, bad smells, crowds, long waits, and many other reasons why many people prefer to live in suburbs.

more than 2 years ago

Free Desktop Software Development Dead In Windows 8

Jerrry Re:Is Apple really that great role model? (462 comments)

"It seems like with this move and generally the Metro and Windows 8 walled garden stuff, Microsoft is going more and more "the Apple way". "

If, by the "Apple way", you mean iOS development, then I'd agree with you as the App Store is the only viable means of distributing apps short of jailbreaking an iDevice.

This is not the case with OS X apps, however. Sure, there's an App Store for the Mac, but it's not mandatory like it is for iPhones and iPads. Plus Xcode, the Apple development tool, is free and this tool is not an "Express" version like the free versions of Visual Studio. The underlying compilers (either GCC or LLVM) are open source too, which is more than you can say about the Microsoft compilers.

more than 2 years ago

Photographer Threatened With Legal Action After Asserting His Copyright

Jerrry Re:Photographer should say "Go ahead" (667 comments)

""The fair use doctrine permits nonprofits more leeway than for profit businesses." - That's not true but it's understandable if she believes it is and thought no harm was done."

It would be understandable if she were an average person, but she claims to be an attorney on her web site, and as an attorney, she should know better.

more than 2 years ago

New Legislation Would Punish Mishandling of Private Data

Jerrry Make the Fines Meaningful (187 comments)

The problem with legislation of this sort is that the fines imposed are ludicrously small compared to the revenue of the companies being fined.

If I were fined for, say, exceeding the speed limit at the same ratio to my income as most fines imposed on companies, then the fine would be something like $0.05. Hardly a disincentive at all.

more than 3 years ago

.NET Gadgeteer — Microsoft's Arduino Killer?

Jerrry Re:The likeliest adopters are commercial users (241 comments)

I don't love Microsoft, but kudos to them for branching out creatively in an effort to shore up their sagging fortunes.

Microsoft just announced record Q4 earnings a few weeks ago of over $17B. How, by any stretch of the phrase, are their fortunes "sagging"? I wish my own personal fortunes were sagging as badly.

more than 3 years ago

Solar Panels Increase Home Value

Jerrry Re:Cost to install (352 comments)

"It's closer to $6k per kW in my next of the woods (that's why I paid), but I'm sure you can find a company to do it for $5k. I went with a company that had done some installations in my neighborhood, though, and had a pretty good reputation."

That's close to what mine cost ($80K for 12.5 KW). Even in summer with all 3 air conditioners running, my electric meter is still running backwards. Even it winter it's usually generating more power than we're using, expect on dark overcast or rainy days.

more than 3 years ago

Why Does the US Cling To Imperial Measurements?

Jerrry Re:Because.... (2288 comments)

"There is no consistency, and that alone can give rise to errors"

If you think we're inconsistent, take a look at the bloody Brits.

They use cm and meters for length, except on the roads, where they still use miles (and MPH).

They use grams and kg for weights, except for people, where they use stone.

It's a bloody mess.

more than 3 years ago

Hubble Confirms Nature of Mysterious Green Blob

Jerrry Re:And for those not interested in reading TFA (140 comments)

"Sorry for being such a nitpicker. Actually, if the quasar that lit up the cloud died about 200.000 years ago, "

If the quasar died 200,000 years ago, how would we know this? If the quasar is 650 million LYs from Earth, wouldn't the evidence of its death take 650 million years to reach us?

about 4 years ago

Sony's Blue-Violet Laser the Future Blu-ray?

Jerrry Yet Another Format War on the Way... (260 comments)

Of course, as soon as Sony brings this to market, some other company, or group of companies, will unveil a competing product incompatible with Sony's, starting yet another format war. Too bad these guys can't just work together and agree on a common format and save us all time, money, and having to deal with dead formats (e.g. HD-DVD).

more than 4 years ago

Building a Homemade Nuclear Reactor In NYC

Jerrry Fusion is Easy... (219 comments)

Fusion is relatively easy to achieve on a small scale. What's extremely hard to achieve, judged on the efforts of various organizations over the past 60 years, is fusion that produces more power than it consumes.

more than 4 years ago

UK Police To Allow Gun Users To Renew Licenses With iPhone App

Jerrry Re:Mothers (271 comments)

As the old saying goes: "Better to be judged by 12 than carried by 6".

more than 4 years ago

Pakistani Lawyer Wants Mark Zuckerberg Executed

Jerrry Dark Ages (1318 comments)

Yet another example showing that the Islamic world is still in the Dark Ages that most of the rest of the world emerged from sometime in the 13th century.

more than 4 years ago



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