I think this is quite interesting.

http://yarchive.net/comp/linux/drive_caches.html

While I've often gotten the impression that the write cache opens up a large "write hole", Linus says that data is cached only for milliseconds, not held in the cache for several seconds. Still, I'd like to see battery backed caches in regular drives and/or controllers.

Would be nice to hear from some drive firmware writers.

The only real advantage to "Hardware RAID" is the battery backed cache. Hardware RAID comes with the disadvantage of a whole other operating system "firmware" with its own bugs and often proprietary disk layout. Parity calculations are nothing for current CPUs, so the onboard processor is not so useful. Advanced filesystems such as ZFS or BTRFS need direct access to the disks. I'd like to see drives and/or controllers with battery backed cache. Until then, I rely on my UPS.

Yes. It has much lower latency, which is better for real time applications.

I don't believe this is an analog problem as much as a delay problem. Cell phones are the worst. Call someone on a cell phone that you can see. The delay is probably .25-.50 seconds. By contrast, I frequently speak with relatives using direct VOIP (high quality SIP phones) and it's like standing in the room with them. If you have one of the multiple DECT phone sets, call one of the other phones in the set and I'll bet that you find the "digital" voice quality to be quite good.

Wrong. Very wrong. Sports may be over-emphasized, but they are essential and here is why. Although some of us would wish to be all brain and no body, we have bodies that need to be taken care of. Exercise is absolutely essential and sports makes exercise fun. It should be part of the school day because

1. 6-7 hours is way to long to go without physical activity.
2. Teaching physical activity as an integral part of one's lifestyle has lasting effects.

I guarantee there are a large number of readers who's health has suffered (overweight, high blood pressure, etc) because they held the parent's point of view, only to find out 20 years later it was killing them quickly and a change of lifestyle was required. Do your kids a favor by making physical activity an integral part of their day and making it fun. Again, sports makes exercise fun.

I have an i5 Sandy Bridge on Xubuntu LTS with xorg-edgers (latest graphics drivers from git). After reading this and following articles pointing to tests using this GPU, I found http://www.xonotic.org/, which is quite an impressive OSS game. I played it at 1920x1080 with Normal effects and it looked stunning with no apparent stutter. Though I'm sure there are plenty of recent games that would bring this GPU to its knees, it seems to be up to the task for moderate gaming.

Assuming they work with AMD (which has 5-6? dedicated employees working on the ATI Radeon OSS driver) in the same way they have worked with Intel, Linux should obtain high quality drivers for both economy and performance chips.

It would be difficult to dream up a better scenario than what we're witnessing here. It's a benefit to all groups involved (kernel, driver, game devs) and the transparency delivered by OSS will allow graphics on Linux to surpass that of those with closed kernels and/or drivers. Let's hope that patents don't stifle progress here.

I followed a few links and found my way here:

http://www.paranormal-entertainment.com/idr/blog/posts/2012-07-19T18%3A54%3A37Z-The_zombies_cometh/

It's a blog about an experience intel driver developers had working with the Valve Linux team. What I found interesting is that the Valve developers prefer working with open drivers for an obvious reason - It's hard to find out what went wrong when you're dealing with a black box. What I gathered from the discussion is that this openness was a huge boost to development of both the game and the driver. This gives me hope that there may be a bright future for open source graphics drivers and even gaming on Linux.

From the blog:

A pretty good GPU + an open driver + an open kernel coupled with a working relations ship between the 3 groups should result in a super graphics and games on Linux. I'm not a gamer, but I'll buy their games just to support this. Typing this on a Sandy Bridge machine pulling from xorg-edgers.

The theory of how this works is that it is a purified version of microfracture, which is now prevalent (especially among athletes) and accepted. Microfrature works because the stems cells from the bone marrow form new cartilage, which produces hyaline cartilage material, but also lots of stuff you don't want, making the result inferior to pure hyaline cartilage (called fibrocartilage). So in theory, if you remove the crap (isolate the stem cells), you can get a more pure cartilage formation.

It makes sense and Regenerative Sciences is claiming something like an 80% success rate. Microfrature was controversial at its infancy, but the results spoke for themselves and the sports industry took notice and became early adopters. A similar thing is happening now with stem cell therapy as athletes have taken notice (Bartolo Colón, Jarvis Green). I've been watching Regenerative Sciences for 3-4 years looking for the negative reports to come on (fraud, etc) and haven't seen them. Instead I've seen them rise in popularity, branching out and publishing (results as well as safety and complication data). They're claiming very good results and behaving responsibly as far as I can tell.

I currently have a MacBook Air, which is a nice piece of hardware, but I've yet to stamp out all issues (hangs on external display, random suspend borks, etc) running Ubuntu. If they deliver a laptop of similar quality with everything working nicely, I will buy it.

If you're talking about ABC/NBC/FOX, just use over the air digital and you can still watch the talking heads in 1080i or 720p.

I did the math once. Sorry I'm too lazy to look up figures and do the math now, but at 10 cents per kWH (rate where I live) and the range per battery capacity drained for the Volt (miles per kWH or whatever units you want), the "mileage" (comparing electric to gas costs) works out to be about 100 miles per gallon for full electric operation. Using inifinity makes it sound as if electric is free. BTW, I'm all for electric cars and I'm drooling over the Tesla Model S.

Ditto. Another N900 owner here. I'm amazed when new phones don't do this when my relatively old N900 has always had really good contact account integration. Also, Skype and SIP are well integrated into the phone app and all messaging including SMS is integrated. Without looking at an indicator icon, you may not know whether you're using SMS or an IM protocol. Or you may now know if you're receiving a cell call or a Skype call.

It's funny that MS is advertising features from the platform they're trying to kill.

Python is strongly typed. Maybe you mean statically typed.

Also, dose is not the only factor to consider. The scanners are designed to concentrate radiation on a single organ - your skin, where as the radiation you encouter in flight is more equally distributed. Also, the duration of exposure is important. Receiving a particular dose over a few milliseconds is more harmful than receiving the same dose over an hour or two.