Name: Anonymous 2013-06-27 2:27

Learn to build website, create iPhone and Android Apps, code with Ruby on Rails and PHP, or start an business :
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Name: Anonymous 2013-12-18 5:06

The Programmer's Resource Center :

Name: Anonymous 2014-03-09 3:25

Play-i's Bo and Yana robots teach kids programming concepts through stories :

Name: Anonymous 2014-03-31 22:34

Name: Anonymous 2014-04-03 13:46


Name: Anonymous 2014-04-07 3:58

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Name: Anonymous 2014-03-13 17:23

Who here just fucking hates Google & Microsoft?
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Name: Anonymous 2014-03-13 18:51

I hate google, apathetic about microsoft

Name: Anonymous 2014-03-22 17:07

i love both

Name: Anonymous 2014-04-03 17:51

google is a shit company with good products
microsoft is just shit

Name: Anonymous 2014-04-04 3:31

They're both pretty fantastic yo

Name: Anonymous 2014-04-06 15:30

they're both shit
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Name: Anonymous 2014-04-06 7:33

Turbocharger Refresher

Wheels at work

Exhaust-driven turbine wheel spins its "attached" compressor wheel to turbocharge the engine's output.

For or internal combustion to take place, fuel needs oxygen, the source of which is atmospheric air. During the intake stroke (as the piston descends within the cylinder), the mass of air inducted is strictly at ambient pressure. Cylinder volume is a physical constant, but the mass of air that fills any space is a function of pressure. Hence, the higher the pressure, the greater the mass of air that can occupy any given volume, simply because air is compressible.

A device that "blows" air into the cylinder would enable more air-mass to be squeezed inside said cylinder than by natural aspiration alone. This concept of forcing air into the cylinder to achieve greater than 100 per cent volumetric efficiency at a given ambient pressure is termed "supercharging".

The device mentioned in the previous paragraph is called a compressor. It can be driven by an electric motor, or mechanically by a belt off the crankshaft. The turbocharger, however, relies neither on a motor nor a belt. Instead, a turbo compressor is driven by a shaft-connected turbine, which is made to spin by the hot, fast-flowing exhaust gases of combustion. In theory, then, turbo-supercharging (to use the "correct" technical term) consumes no energy on its own since exhaust gases are waste products of the internal combustion process.

Hot and bothered

Turbocharging, though highly effective, isn't as simple as it sounds. Heat is turbocharging's biggest complication. Compressed air, especially if it flows from an exhaust gas-driven device, experiences a significant rise in temperature. Not only does this mean a drop in the density of said air, it also causes pre-ignition of the air-fuel mixture in the combustion chamber - a phenomenon that frequently leads to stress failure in the cylinder head (and sometimes even the engine block).

It was essentially for this reason that the grand-daddies of turbo engines were designed with ridiculously low compression ratios - 6.5 to 1 in the case of Porsche's 930 Turbo. This alleviated the pre-ignition problems, but the downside was lethargic pre-boost performance, better known as turbo lag.

The turbo motor would be relatively lethargic till about 3000rpm, but the surge that came thereafter more than made made up for lost time. Porsche later incorporated something called an intercooler into the 930's engine plumbing. It is basically a heat exchanger, which works like a radiator to cool the compressed air as it flows into the intake manifold. This allows the engine to run a slightly higher compression ratio and increases the density of intake air.

The turbo today

While performance continues to be a major incentive to force-feed engines using a turbocharger, tremendous progress in the capabilities of both hardware and software has realised huge gains in fuel consumption and exhaust emissions, too.

Arguably the greatest effect the turbo has had on the automotive industry is "downsizing", or the reduction of engine cubic capacity.

Volkswagen's 1.4-litre TSI engine is a perfect example of the modern, small capacity turbocharged engine.

There's no turbo lag or overheating, just plenty of smooth torquey performance that belies the quoted 122bhp, thanks to a full 200Nm of torque available between 1500rpm and 4000rpm. The 1.4LVW's sprightly mid-range acceleration feels more like that of a 2-litre, but when it comes to average mileage, the figures are closer to those of a naturally aspirated 1.2-litre. It's the proverbial best of both worlds, on wheels.

The turbo tomorrow

Today's state-of-the-art turbo engines deliver performance, economy and driveability that their naturally aspirated cousins of a similar capacity cannot match. With turbo technology continuing to improve, future turbocharged engines are likely to be even better than the ones we have right now.
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Name: TheFirmRhombus 2014-03-31 0:20

Is it possible for a computer to send data to an Arduino connected as a serial device via the windows command line? i.e: Is there a command line function that can send data retreived via the command line directly to the Arduino. So for example I could run "tasklist" and have it send the results straight to my Arduino for future parsing.

So, exactly how the info is saved and parsed will partly depend on the method used to retrieve the data. I guess the important question here is: is it possible?

Name: Anonymous 2014-03-31 14:26

Name: Anonymous 2014-04-06 6:16

You'll need to either deal with USB serial or use a serial connection. yes you can send serial data to an arduino, although im not sure with windows how you'd do something like tasklist.

linux is more "tasklist > serial_function" but i dunno how you'd do that on windows.
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Name: Anonymous 2014-04-03 18:01

i have a bunch of servers
is there any way i could write a simple script to get cpu, ram, disk and network usage for all three machines?
i know basic c++ and python, am obviously going to learn more soon if there is a viable option

Name: Anonymous 2014-04-03 23:21

Ask in the ImageBoard
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Name: Anonymous 2014-04-02 9:02

Anyone got a concise explanation of how this video shows that wand #1 isn't really jumping a 1" air gap but instead going through the carpenters tape glue?
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Name: sdaklfjsdlkafjalksdfs 2014-03-31 17:33

Is it possible to hook 3 ubuntu, 2 mac snow leopards, and 5 windows 7 computers together, and have software running on a server with windows 2008 r2 that hosts all the software they need? The computers are split up into two building, what kind of equipment would I need to connect them all?

Name: Anonymous 2014-03-31 20:43

A 10BASE2 cable, some vampire taps, and terminators.
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Name: Anonymous 2014-01-22 13:17

Secure smartphone out soon

WASHINGTON - It is a fully encrypted smartphone which aims to foil snooping governments, industry rivals and hackers.

   It is also a sleek, attractive device that fits in your pocket and can impress friends and colleagues, according to its makers.

   The Blackphone is set to be released next month by secure communications firm Silent Circle and Spanish-based manufacturer Geeksphone, amid concern over revelations about vast US surveillance of data and telephony.

   But Silent Circle chief executive Mike Janke said his company was working on the handset even before last year's revelations about the wide-ranging United States National Security Agency programmes, leaked by former contractor Edward Snowden.

   "We did this because there was a problem that was not being solved - secure communications," Mr Janke said in an interview.

   Silent Circle was formed in 2011, and last year, it launched apps and other services which allow smartphone and PC users to send encrypted messages and videos.

   The Blackphone is an extension of that effort, said Mr Janke, a former US Navy Seal Who co-founded the firm with other ex-Seals and Silicon Valley cryptographic experts.

   "We offer completely encrypted, peer-to-peer communications. We have encrypted video, encrypted text and secure voice-over-Internet-protocol calls," he said.

   Silent Circle customers include major global corporations, human rights activists and even the Tibetan government in exile.

   Because of its work, he said, "almost all of the major smartphone manufacturers came to us" to work on a more secure smartphone.


Name: Anonymous 2014-01-29 5:44

It runs android and probably has binary blobs everywhere.

0/10 would not buy.

Name: Anonymous 2014-01-29 23:39

South Korean telcos to launch 300Mbps LTE this year

Smartphone users in South Korea may enjoy LTE wireless speeds of up to 300Mbps by year's end.

   Korean telcos SK Telecom and LG U+ are planning to launch these mobile services this year. They are able to achieve this speed with technology that aggregates three separate LTE bands.

   But this technology, also known as LTE Advanced 3 Band Carrier Aggregation, has to be standardised and adopted by mobile phone manufacturers before they can produce devices capable of supporting such speeds.

Name: Anonymous 2014-02-11 19:35

The NSA is so silly making phones that don't spy on you're chum. Then the next day they go nutz and show your browsinng history for the sick bastards to see and laugh at.

Name: Anonymous 2014-03-28 11:10


If smartphone user want to use only 1 telecommunication service worldwide and pay less, cell buddy will be a better choice :

Name: Anonymous 2014-03-30 3:50

5 tips to conserve your smartphone battery

01 Switch off the vibrate function

Disable the vibration for notifications and rely on ringtones when it's not necessary.

02 Dim your screen

Adjust the screen brightness to the lowest level that you are comfortable with without straining your eyes.

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Name: Anonymous 2013-07-10 11:41

Woodworking Plans & Projects - Custom Woodworking Carpentry :
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Name: Anonymous 2013-09-05 19:35


Name: Anonymous 2013-09-16 22:07

Name: Anonymous 2013-12-19 22:02

CodePlex - Project Hosting for Open Source Software :

Name: Anonymous 2014-01-01 12:46

Name: Anonymous 2014-03-28 5:23

I like LittleBits :
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Name: Anonymous 2007-07-09 20:42 ID:n9ZNJBwK

What is a good way to mess up a ipb forum?
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Name: Anonymous 2007-07-10 22:34 ID:93BF2SQd

Find the forum owner and murder him, preferably in a way that's funny (e.g. rape him to death while wearing a pyramid head costume). When the police interrogate you, communicate using only 4chan catchphrases. When you get to court, shout out "I DID IT FOR THE LULZ" at an opportune time.

Name: Anonymous 2007-07-12 18:35 ID:eu82gzwl

Post some Goatse.  That'll quickly ruin any forum.  If you get banned, conduct a raid.

Name: Anonymous 2014-03-07 2:19

Name: Anonymous 2014-03-26 16:45

Wow, how the years have passed...

Name: Anonymous 2014-03-27 11:42

I was in high school when this thread was created!
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