Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Comment Re:Worst Summary Ever. (Score 3, Informative) 44

From the summary:

and some off-the-shelf air quality sensors (about $10 each)

From the article (sorry, Instructable):

- Air Quality Sensor from Figaro (I recommend the VOC or the diesel/exhaust sensor, $10/$20 each)

I guess it was just too hard to copy/paste two prices.

The article is just as bad. I mean, this is Carnegie Mellon University. How's this for science:

Data sheet for both sensors suggests 48 hours of preheat to make the elements most stable. I've run them for about 24 hours and it seemed to work fine.

Oh, so your sensors "seem to work fine". Here's a quote from the datasheets:

[solvent vapor sensor] Standard test conditions: Conditioning period before test: 7 days
[gasoline and diesel exhaust sensor] Standard test conditions: Conditioning period before test: 2-7 days

No calibration whatsoever. Dumbasses.

I hope these wankers create an air pollution scare and the local population starts wearing gas masks to defend themselves from horrendous air quality because the people who'll build this kind of thing has no clue, follows the Instructable without question and makes the same mistakes as the UNI-FUCKING-VERSITY people.

Comment Re:Physics... (Score 1) 226

Found the Wikipedia article on the Lockheed SR-71 Blackbird after reading your comment (last paragraph in "Titanium structures and airframe"):
"To allow for thermal expansion at the high operational temperatures, the fuselage panels were manufactured to fit only loosely on the ground. Proper alignment was only achieved when the airframe heated due to air resistance at high speeds, causing the airframe to expand several inches. Because of this, and the lack of a fuel sealing system that could handle the thermal expansion of the airframe at extreme temperatures, the aircraft would leak JP-7 jet fuel onto the runway before it took off. The aircraft would quickly make a short sprint, meant to warm up the airframe, and was then refueled in the air before departing on its mission. Cooling was carried out by cycling fuel behind the titanium surfaces at the front of the wings (chines). On landing after a mission the canopy temperature was over 300 C (572 F), too hot to approach. Non-fibrous asbestos with high heat tolerance was used in high-temperature areas.[20]"

Comment Re:efficiency (Score 1) 326

Nice post!

Next time spice it up with links for references and further reading, but you' could on your way to /. fame if you keep up! Who knows, one day you might even append your initials to your comment like all the oldtimers and people who think they're something does! ;)

Comment Re:I feel split in this matter (Score 1) 677

You needed Jon Stewart to tell you that?

And your point is moot. If you don't fight for other peoples rights now, why would you do it later? If they censor 4chan now, who knows what they'll block next time?
I'm pretty sure the German people during WW2 would speak up as well, given that they knew about it, weren't placed under a strict censorship or weren't brainwashed.
The whole point, of course, is that this might just be the beginning.

Comment Re:Why put tabs in code anyway? (Score 1) 390

The only thing that keeps users (us) coming to this site, is the name.

Oh, the irony of a website dedicated to nerds being such a mess. Where's my unicode support?

To add to the discussion, using tabs over spaces saves Slashdot some bandwidth. Have a look at the "menu" ul -- li's are seperated by 6 lines of 4 tabs. That's 24 tabs, or what would be 96 spaces to seperate items. Have a look for yourself, Slashdots filter makes a mess of it. At least in the preview...

You see that? Just think of how many bytes would go to printing spaces if they didn't use tabs!

Slashdot Top Deals

"The one charm of marriage is that it makes a life of deception a neccessity." - Oscar Wilde

Working...