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Comment Re:Another Idea that will not catch on (hopefully) (Score 5, Insightful) 98

Unfortunately the Slashdot story submission process almost requires you to post the stories on your own site. The problem is that the main url for the story must be unique among all story submissions, but the writeup must also be decent (yes that second point is debatable). So if any of the bagillion other slashdot readers submits the story before you, you're out of luck. And if they write a crappy one sentence description the story gets rejected and that original url is permablocked but the submission process. The process naturally selects the autobloggers that provide a unique url (typically to their own site) and provide a good (read inflammatory) description.

Submission + - A victory for common sense (bbc.co.uk)

An anonymous reader writes: From a previous /. submission the "bomb detector" maker Jim McCormick has finally been arrested. Lets hope that he's permanently removed from the economy, and if possible, the gene pool...

Comment Re:What if it was really a bomb? (Score 1) 687

Thank you for standing up and saying this. Most of this page is filled with random 'THE VICE PRINCIPLE IS THE SUXXORZ RAWR!' rants which have sadly spilled on to the local news page (many of the comments on that page are in fact copied verbatim here on slashdot).

The description for the 'project' is quite vague, though it is described as a motion detector. I am under the impression that this is a inquisitive child's attempt at making a 'motion detector' the same way he might make a fire truck out of a cardboard box. People keep saying how the vice-principle should have known better, but there are certainly 11 year-olds that are capable of constructing explosives. With the obvious exception of things-that-do-nothing, explosives are probably the easiest project to make, and its highly plausible that amongst the student population of a tech school that you'd find students capable of making such a project.

For all the people slamming the vice-principle let me pose the following mental experiment: (1) imagine a gatorade bottle with random wire and IC chips glued to the surface (2) imagine an actual explosive device constructed by an 11-year old. If those objects look drastically different in your mind then you've been watching too much television. A high-school buddy of mine does bomb disposal for a PD down in Georgia and he has plenty of stories about real bombs that look like a someone spun a pitchfork in the bargain bin at a local electronics shop and covered the thing in hot glue.

Yes it sounds like things got out of hand, yes the school should probably plan and highly publicize how such an event will be handled in the future, but good grief stop screaming at people that had make a judgment call with the possible danger to several hundred students on the line.

Comment Re:Audio/Videophiles Beware (Score 2, Informative) 397

(please mod parent up)

Just to run the numbers available -
In cat5 you have 4 twisted pairs with the following arrangement [1]:
color cm/turn turn/m
green 1.53 65.2
blue 1.54 64.8
orange 1.78 56.2
brown 1.94 51.7

That makes:
green = 1.53 * 65.2 = 99.756
blue = 1.54 * 64.8 = 99.792
orange = 1.78 * 56.2 = 100.036
brown = 1.94 * 51.7 = 100.298

So a roughly 0.5% difference in wire length. Using a low-end estimate for the speed of an EM wave [2] of 66% the speed of light we still have: 1/(3.0e8 * 0.66) = 5e-9 s/m. So that at the end of a 100m length of cat5 (the spec limit) the ~0.5m difference in length would mean the signals would be separated by roughly 250 picoseconds.

I have trouble seeing how that could possibly be enough to impact any audio signal perceptible by the human ear. If anyone else has more numbers to run please chime in.
[1] http://en.wikipedia.org/wiki/Category_5_cable#Connectors_and_other_information
[2] http://en.wikipedia.org/wiki/Speed_of_electricity

Comment 'GodMode' strings do the following: (Score 2, Informative) 422

::SPOILER ALERT:: If you want the nerdjoy of trying these all yourself stop reading now

woog.{00C6D95F-329C-409a-81D7-C46C66EA7F33}
-enter a default location for gps and other location aware programs

woog.{0142e4d0-fb7a-11dc-ba4a-000ffe7ab428}
-biometric devices control

woog.{025A5937-A6BE-4686-A844-36FE4BEC8B6D}
-power plan management

woog.{05d7b0f4-2121-4eff-bf6b-ed3f69b894d9}
-taskbar icons and notifications

woog.{1206F5F1-0569-412C-8FEC-3204630DFB70}
-windows credential manager

woog.{15eae92e-f17a-4431-9f28-805e482dafd4}
-install a new program

woog.{17cd9488-1228-4b2f-88ce-4298e93e0966}
-default programs and file associations

woog.{1D2680C9-0E2A-469d-B787-065558BC7D43}
-public key tokens NOTE: does not change folder icon

woog.{1FA9085F-25A2-489B-85D4-86326EEDCD87}
-manage wireless networks

woog.{208D2C60-3AEA-1069-A2D7-08002B30309D}
-network neighborhood

woog.{20D04FE0-3AEA-1069-A2D8-08002B30309D}
-my computer

woog.{2227A280-3AEA-1069-A2DE-08002B30309D}
-printer installation and queue (Note: slightly different than printers & devices)

woog.{241D7C96-F8BF-4F85-B01F-E2B043341A4B}
-remote apps and desktop connection

woog.{4026492F-2F69-46B8-B9BF-5654FC07E423}
-windows firewall settings

woog.{62D8ED13-C9D0-4CE8-A914-47DD628FB1B0}
-unknown, this did nothing on my machine

woog.{78F3955E-3B90-4184-BD14-5397C15F1EFC}
-windows experience index

woog.{ED7BA470-8E54-465E-825C-99712043E01C}
-original 'GodMode' folder

Comment Re:Light Sensing Switch -- there's your problem... (Score 1) 467

Agreed. Unless he's using dusk-to-dawn switches explicitly designed for cfl bulbs he's just tossing money away. Most older style switches (the predominant types on the market) will state that they should not be used be used with cfl bulbs. To the GP you might consider something like the following: http://www.touchandglow.com/product-p/s-751mg-2pk.htm which as I understand it basically applies a Schmitt trigger to keep the bulb from fluctuating between states.

Comment Re:Gravel roads are cheap but need more maintenanc (Score 1) 717

No. You are profoundly misinformed. California even prior to the current budget crisis had among the highest student to teacher ratios in the nation. Moreover their funding per student is among the lowest in the nation. The only strawman I can see is your reference to the 'single largest line item' which I suspect you know full well does not accurately portray overall funding. Teacher pay is typically higher in California, BUT not in proportion to the cost of living in the state. See this 2002 report for a dose of reality: http://www.ed-data.k12.ca.us/Articles/CalRankings.asp

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