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Comment The brand of the network switch also matters (Score 1) 524

We have CAT5 cables that were installed in 1997, some of which are longer than 100m and run past elevator engines and probably lots power cabling (it's in a theatre). With some cables, I could only get a stable link on 10MBPS and sometimes even that was too much to ask. I used simple 8 port switches (sweex, broadcom, etc) for most of these connections. After I plugged in these cables into a decent 24 port 3Com switch, the connection turned out to be steady as a rock. Kind of obvious perhaps, as a more expensive switch would be expected to have better noise tolerance, but it did save me from the impossible and expensive job of reinstalling the cabling. Decent network switches can be lifesavers. Yay for vlans!
Space

Alien Comet May Have Infiltrated the Solar System 208

New Scientist has a piece about Comet Machholz 1, whose uncommon molecular composition suggests, but does not prove, that it may be an interloper from another star system. "Comet Machholz 1 isn't like other comets. David Schleicher of the Lowell Observatory in Flagstaff, Arizona, measured the chemical makeup of 150 comets, and found that they all had similar levels of the chemical cyanogen (CN) except for Machholz 1, which has less than 1.5% of the normal level. Along with some other comets, it is also low on the molecules carbon-2 and carbon-3."
Biotech

Measuring Engagement In Games 72

Gamasutra is running an article written by Tim Hong of EmSense in which he describes the research his company did into the physiological reactions various games engender in players. In addition to outward cues like breathing and movement, EmSense also scans brainwaves and heart activity to provide a more complete picture of how a gamer is responding to what he sees and does. They collected hundreds of hours worth of data and made comparisons among a variety of shooters, such as Gears of War 2, F.E.A.R, and Half-Life 2. They found some interesting information on how pacing, tutorials, and cutscenes can affect a player's level of engagement with the games.
Image

Guitarist Hopes To Play Again With The Help of Bionic Hand 72

Dorian Cox, the 27-year-old guitarist of the indie band The Long Blondes, thought his guitar playing days were over after he suffered a stroke. He now has a glimmer of hope thanks to some neurological physiotherapy which includes a cutting-edge piece of medical technology. The SaeboFlex helps patients by supporting their wrists and helping them grasp and release objects. "It's a fantastic service, it's helping tremendously and I think it can work wonders for me and others — it's almost like a gym for my hand. I know things might never be the same again and nobody can give me a definite answer about whether I'll play guitar again but I'm getting back on track with their help," Mr. Cox said. This thing looks really cool, and I'm sure many people will benefit from it, though I can't help but wonder if they make a model that lets you shoot your fist at an enemy.
Security

The Backstory of the Kaminsky Bug 122

Ant recommends a Wired piece on the background story of the Kaminsky DNS bug and its (temporary) resolution, decreasing the odds of a successful breach from 1 in 2^16 to 1 in 2^32. We've discussed this uber-hole a number of times. Wired follows the story arc from before Kaminsky's discovery of the bug to his public presentation of it in Las Vegas.

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