Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Comments

top

World's First 3D Printed Estate Coming To New York

Carnildo Re:Let us redefine "progress" (105 comments)

Imagine that, just rolling up two trucks to a construction site: one carrying the printer, another with all the crushed rock, setting it up and letting it go. A week later, a finished home ready for a family to move into at half the cost.

Imagine that, just rolling up two trucks to a construction site: one carrying the left half of the home, and one carrying the right half. A bit of maneuvering to align them on the foundation pad, a little work connecting things up, and the family can start moving in that afternoon.

Or if you prefer a non-standard shape, how about two trucks: one carrying a collection of prefabricated floor, wall, and roof sections, and one carrying a crane and a construction crew. Takes a bit longer to assemble, but it can still be done in less than a day.

Rapid construction of houses is nothing new. I watched a neighbor's house go from foundation pad to final painting in less than a day back in the early 80s, and it was old tech even then.

2 days ago
top

Is Storage Necessary For Renewable Energy?

Carnildo Re:Expert?? (436 comments)

Roads could be improved incrementally. A railroad that only connects two cities still has value. Any large, flat field could handle an early airplane, as long as you moved the cows out first.

The problem with this "storage-less" renewable grid is that no partial implementation is adequate. It simply cannot function on anything less than continent scale, and may require a global-scale grid to average out the fluctuations enough.

3 days ago
top

Study: Firmware Plagued By Poor Encryption and Backdoors

Carnildo Re:Going to need MUCH better firewalls (141 comments)

Fortunately, a water heater is simple enough that you can rip out the "smart" electronics and replace them with the sort of thermostat-and-relay circuit that almost everything uses right now.

about two weeks ago
top

Study Finds That Astronauts Are Severely Sleep Deprived

Carnildo Sleeping patterns? (106 comments)

I don't think there's ever been a proper study of astronauts' natural sleeping patterns in space. There are always more things people want astronauts to do than there are hours to do them in, so everything (including sleep) is very tightly scheduled. Nobody's ever said "spend the next week doing nothing but keeping your spaceship running, and do it on your own schedule".

We don't know what effect, if any, the freefall environment has on sleep patterns. It may be that astronauts are so sleep-deprived because Mission Control has been scheduling things wrong.

about two weeks ago
top

My degree of colorblindness:

Carnildo Re:How should this poll converge? (267 comments)

Slashdot is male dominated, so it should have more colorblindness than a random population sample. If we know the sex ratio on /., maybe we could predict how the poll converges.

The problem with this is that many people with red-green colorblindness (especially with the milder forms) are unaware of it. There's a reason why colorblindness as a disorder wasn't recognized until 1798...

about two weeks ago
top

Microsoft Tip Leads To Child Porn Arrest In Pennsylvania

Carnildo Re:Why do people even use this garbage? (353 comments)

You know how they work their way up with drugs? By offering reduced charges/reduced sentences for providing evidence. For example, a drug user will be offered probation/dropped charges for ratting out his dealer, who in turn will have a "possession with intent to distribute" reduced to mere possession for saying who his supplier is, and so on up the line until they find someone big enough to go all-out against.

The police can't do that with CP. There are no lesser versions of possession, and dropping charges will get a prosecutor crucified by his opponent in the next election.

about two weeks ago
top

Wikipedia Reports 50 Links From Google 'Forgotten', Issues Transparency Report

Carnildo Re:Request to remove or alter content (81 comments)

Requests to fix errors come in all the time -- and are forwarded to the community, who decide if the request is reasonable or not. In such cases, the Foundation merely acts as a conduit for the request, rather than granting or denying it.

The denied requests come about when someone demands (and it's almost always a demand) that the Foundation use their powers as operator of the website to make a change to an article.

about two weeks ago
top

The FBI Is Infecting Tor Users With Malware With Drive-By Downloads

Carnildo Re:the CP sites is one thing, Freedom Hosting anot (182 comments)

They did it to all sites hosted by Freedom Hosting. Most notably, they did it to Tormail -- not a kiddie porn site, a webmail provider.

about two weeks ago
top

Fixing a 7,000-Ton Drill

Carnildo Re:Drilling through mud mixed with rocks. (101 comments)

whatever is above them in downtown Seattle.

Five city blocks (low-rise -- doesn't look to be anything over eight stories tall), a quarter-mile of the Alaska Way Viaduct, the entrance to the downtown ferry and water taxi docks, and two entrances to one of the larger docks at the Port of Seattle. If the tunnel is deeper than I think, or the soil is more liquid, add another seven city blocks (also low-rise), one park, the ferry docks themselves, part of the Port of Seattle dock, and maybe the football stadium.

Yes, disassembling from behind would be cheaper, if it worked. If anything went wrong, it would be far, far more expensive.

about two weeks ago
top

Inside BitFury's 20 Megawatt Bitcoin Mine

Carnildo Re:Good Thing (195 comments)

I calculated from the other end: assuming that the Bitcoin market represents an efficient market (ie. sale prices are only slightly above production prices), and that the marginal cost of mining hardware is 0:

- A bitcoin sells for $584
- Mining a block generates 25 bitcoins
- 144 blocks are mined per day
- 63000 transactions per day

584 * 25 * 144 / 63000 = $33.37 per transaction.

about two weeks ago
top

Inside BitFury's 20 Megawatt Bitcoin Mine

Carnildo Re:Good Thing (195 comments)

And do you perhaps think point-of-sale systems and credit/debit card systems or wire transfers require none?

The Bitcoin network uses about $35 worth of energy to process a single transaction. Now, I don't know how much energy a single credit card transaction uses, but given the transaction fees that processing companies charge, I'm willing to bet that it's far, far less than $35 worth.

about three weeks ago
top

Quiet Cooling With a Copper Foam Heatsink

Carnildo Re:Reynolds number (171 comments)

OTOH, the traditional CPU/mobo setting is a little problematic; first you put the most heat-concentrating element in the middle of everything, and then later you realize it needs cooling.

The theory is that the exhaust air from the CPU heatsink spreads out to parts that are more heat-tolerant but still need active cooling, such as the voltage regulators. A VRM that can operate at 100C without trouble can be cooled just fine with a slow flow of 50C exhaust air from the CPU cooling system.

In practice, people have found that a front-to-back airflow, preferably ducted, is quieter and more effective than a mix of back-to-front, blow-down, and turbulent airflows. It does, however, require actual engineering work, rather than just attaching a bunch of fans to everything.

about three weeks ago
top

Quiet Cooling With a Copper Foam Heatsink

Carnildo Re:Kickstarter warning (171 comments)

*Exterior* temperature? My current heatsink can manage a CPU temperature below that, with the fan at idle. Why would I want to downgrade to this thing?

about three weeks ago
top

seL4 Verified Microkernel Now Open Source

Carnildo Don't tell HURD (82 comments)

Don't tell the HURD people -- they'll change which microkernel they're building around, again.

about three weeks ago
top

Oracle Offers Custom Intel Chips and Unanticipated Costs

Carnildo Re:Sales flow chart. (97 comments)

How big is big enough that nothing but Oracle will do? Facebook is on MySQL, Wikipedia is on MariaDB and Google is using Bigtable.

It's more the nature and size of access rather than the sheer volume of data. Facebook and Wikipedia both act on small portions of the overall dataset, Wikipedia additionally is a read-mostly workload, and Google's access patterns aren't suitable for a relational database.

about three weeks ago
top

Western US States Using Up Ground Water At an Alarming Rate

Carnildo Re:PBS covered this (377 comments)

I don't know about Los Angeles or San Francisco, but Phoenix's water usage has been dropping as a result of replacing citrus orchards with subdivisions.

about a month ago
top

GOG.com Announces Linux Support

Carnildo Re:GOG discovers DOSBOX works on Linux (81 comments)

There was a brief period (roughly 1993 to 1995) when copy protection worked to stop small-scale piracy: around the time when CD-ROM drives first became popular. If you could stuff a CD full of game files, you had a game that could not be economically pirated, because copying the CD required either a dedicated hard drive to store the data (hundreds to thousands of dollars), a hugely expensive CD recorder (tens of thousands of dollars), or a CD stamping facility (millions of dollars).

about a month ago
top

Google Offers a Million Bucks For a Better Inverter

Carnildo Re:I don't understand the problem here. (260 comments)

The kit includes eight 8 x 8 x 5 inch Enphase inverters weighing 6 lbs each

Which gives a power density of 0.78 watts per cubic inch. The Google challenge calls for a minimum power density of 50 watts per cubic inch.

about a month ago
top

New Map Fingers Future Hot Spots For U.S. Earthquakes

Carnildo Re:Self-justification (49 comments)

Starting on page 12 of the report is a series of maps showing the changes since the 2008 report. Of note:

* The South Carolina seismic zone has been displaced southward by about 50 miles.
* The New Madrid zone has changed shape, with some areas seeing a substantial reduction in estimated earthquake risk.
* The risk zones in California are more sharply defined.
* The risk for the central Rocky Mountains area is higher, but still relatively low.
* The earthquake risk estimate for coastal Oregon has been reduced.
* A new seismic zone is present in Oklahoma, reflecting whatever is causing the massive increase in earthquake rates there.

about a month ago

Submissions

top

Carnildo Carnildo writes  |  more than 7 years ago

Carnildo (712617) writes "Back in the day, people were up in arms when Geocities changed their copyright terms so that you were granting them a "perpetual, irrevocable" license to do whatever they pleased with your content. That's nothing compared to the new Fark terms of service. By submitting content to Fark, you are assigning the copyright of your submission to Fark, and in return, they are granting you a non-exclusive, non-transferrable, and royalty-free license to use your creation."

Journals

top

Feeling blue

Carnildo Carnildo writes  |  more than 7 years ago

Lest ye worry that, with the coming of Vista, the Blue Screen of Death hath been vanquished for all time, fear not, for verily I have seen one, not these five minutes past.

top

Carnildo Carnildo writes  |  more than 7 years ago

Windows Vista doesn't suck.

Really. Saying it sucks would be too kind. It's a steaming pile of you-know-what.

I got to install and use Vista RC2 today to test how my company's software works under the new OS.

The install process went as expected: the installer asked a bunch of questions, had me accept a license with a bunch of terms I'd never agree with if I was installing this on my home computer, then announce that since I wasn't running XP SP2, it was going to wipe out my existing XP install. No problem there: I've got XP install disks, so I can put things back when I'm done.

What it doesn't mention is that, in addition to wiping out c:\windows, it will also wipe out c:\program files and c:\documents and settings. Fortunately, there's nothing I can't live without on this computer.

So, an hour and three reboots later, Windows is starting the setup wizard. It asks a few questions like my username and password, and what sort of network I'm connecting to. Windows proper then starts up, and it brings up the "welcome center" -- and asks again what sort of network I'm connecting to, this time bringing up the "User Account Control" dialog.

The first thing I do with any new OS is to adjust the preferences.

Those control panels are a mess. Each control panel tab under XP is a control panel now, with one or more long "descriptive" names. They're categorized into ten groups, and any given tab may be in more than one category. It would take me two or three tries to find what I'm looking for, and I still haven't found how to change the mouse acceleration, or get rid of that "your CRT is going bad" drop-shadown around the pointer.

Oh, and that dreaded "Windows registration" stuff? Where Microsoft will degrade your Vista experience until you prove that you've paid the Microsoft tax? It's only by accident that I discovered that Windows hadn't been registered during the install process, and things would have started breaking in three days.

At this point, I'm ready to install and test our software. I click on "Network" to access the fileserver and download the latest installer. It takes Vista a while to locate the fileserver on the network, but at least there's a progress bar that indicates it's doing something. I double-clicked on the fileserver icon, and get prompted for my name and password. I enter them, click "ok", and get told that login failed, check my username and password. The password's fine, but now the username box shows "Junkbox2000\JoeBloggs": Vista has prepended my computer name to my username. As far as I can tell, there's no way to stop Vista from doing this, so I'm locked out of the network.

Further checking of the computer reveals that the old "Documents and Settings" folder is still there, just hidden. Since I can't remember where I stuck the installers, I bring up the search dialog. It takes me three tries to do a full-disk search filename search. The default search is to only search indexed locations, ie. your home directory, with a full-document-text search for the terms you entered. Selecting "search everywhere" from the "location" dropdown doesn't *really* mean everywhere, just those areas that have been indexed. You need to additionally check the "include non-indexed, hidden, and system files" box.

Searching for files by name not only gives you files with the specified name (setup.exe), but also close matches: setup6.0.2.exe, setup6f3.exe, and TGSETUP7.3B5.EXE-063E8B16.pf

So I've found an old installer copy, and I'm finally ready to install. I double-click on it, and immediately get hit by a scary-looking User Account Control dialog: "An unidentified program wants to access your computer". If this is the typical user experience upon installing software on Vista, people will get used to clicking "allow" in that dialog even faster than they got used to clicking "yes, install that spyware" in IE.

At this point, I'm running the latest version of our software, but I need to test the self-update functionality. The easiest way to do this is to open the "current version" file in Notepad and change the version name to that of an older version. I go to save the file, and get the following error message: "Cannot create the C:\Program Files\MySoftware\version.dat" file. Make sure that the file name and path are correct." No hint that the real problem is that I don't have write-access to the file.

I run the updater, expecting it to fail in spectacular fashion. After all, if I don't have permission to write to the application directory, why should a program I'm running? Much to my surprise, it works flawlessly. I suppose this is a hole in Vista's security model, but *I'm* not going to tell Redmond about it.

I try the PDF export functionality of our program, saving the PDF in the same folder as the original file. The "open file" dialog shows everything, while Windows Explorer and the command prompt only shows the original file. Rebooting does not fix this.

Tomorrow I get to test installing from CD. This promises to provide even more fun. After that, I'll try installing and running as a non-admin user.

top

Moderation in all things

Carnildo Carnildo writes  |  more than 9 years ago

It seems that Slashdot has decided I make a good moderator. I'm getting mod points every few days now.

Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>