RK

28 ms·

241.
by RK 16y ago
According to my radiobiology text (Hall), "mammalian cells on average experience over 100,000 DNA lesions per day as a result of replication errors, chemical decay of their bases, attack by reactive oxygen species, or exposure to ionizing r
242.
Real time lightsaber tracking and rendering on the Kinect(kinecthacks.net)
86 points by RK 16y ago|23 comments
243.
by RK 16y ago
Here's my take on the post from a radiation physics point of view. I'm not convinced that these pose a great radiation risk. I would be mostly concerned about people with genetic conditions, who could not normally undergo x-rays, but then a
244.
by RK 16y ago
Or, some minutes she sends more, and some fewer. Yes, this is the beauty of statistics.
245.
by RK 16y ago
Allison Miller sends and receives 27,000 texts a month, carrying on multiple text conversations at a time. Assuming that means she sends 27k/2 = 13,500 SMS per month, and she sleeps 8 hours a day, that means in a 30 day month (480 waking
246.
by RK 16y ago
I think stats where not the strong point of the article... A top 1% (US) athlete might make it to college, but would still have little chance of becoming a professional. A top %1 musician would probably make a lot closer to $0 than $1M.
247.
by RK 16y ago
And comments were occasionally altered in the early days.
248.
by RK 16y ago
I had a similar problem when I got a new number a few years ago. I would get calls, usually very early in the morning asking for someone else. Even though I would say they had the wrong number they would just continue to call back day after
249.
by RK 16y ago
when students saw the exact same questions ahead of time, wouldn't the implication be that the test had been stolen? Stolen by whom? The students or the teacher?
250.
by RK 16y ago
This part of their letter doesn't make sense: Unlike other scanners, these new devices operate at relatively low beam energies (28keV). The majority of their energy is delivered to the skin and the underlying tissue. Thus, while the dose w
251.
by RK 16y ago
(Comments like this make me want to stop reading Hacker News.) If that's not trolling, I don't know what is. I will remind the gentle readers that I even edited my post (with a tag) for correctness almost immediately. Just because the "g
252.
by RK 16y ago
I call bullshit. The cost is not "very high", it's astronomically high. My advisor also worked on creating antimatter traps at government labs, but none of the projects had any kind of defense related purposes. There are only a handful of i
253.
by RK 16y ago
Also at the same facility is the experiment to investigate using beams of antiprotons to treat cancer. http://public.web.cern.ch/public/en/Research/ACE-en.html
254.
by RK 16y ago
My hope is that if anyone buys Dropbox it's Amazon, and they just let Dropbox continue on its merry way, kicking general ass.
255.
by RK 16y ago
Do you have an entry detailing all of the stuff you are traveling with (not just your tech gear)?
256.
by RK 16y ago
They do award AWS in Education research grants. We got one related to cancer research in fact.
257.
by RK 16y ago
It seems that Facebook are trying to extend their information base by capturing information on people that are not using Facebook and their relationship with Facebook users. I already get emails from facebook saying so-and-so wants you to
258.
by RK 16y ago
That's not terribly different than gmail (which has integrated google talk) + an adroid phone.
259.
by RK 16y ago
That's why I have more than one email address.
260.
by RK 16y ago
This offering blows away the few people that were already trying to compete in the GPU cloud space simply by being AWS. Our research is just moving into GPU-based processing, and we can probably adapt our current EC2 based framework to work
261.
by RK 16y ago
Who is down? A bunch of full time university and industry research groups. This is an as of yet unsolved problem beyond the absolutely trivial scale. And even that is very difficult (and not useful).
262.
by RK 16y ago
I agree with what you said, although I actually meant that students themselves probably don't know what makes a college good for them, education-wise and in the long run. I really don't know the answer either. Being surrounded by other smar
263.
by RK 16y ago
It seems like most of the things that make a university "good" are things that a prospective undergrad, with no college experience, would be least likely to know. I'm not implying that the current system is a a good one.
264.
by RK 16y ago
Internode bandwidth seemed to be the limiting factor cited in the paper, so that makes sense.
265.
by RK 16y ago
Each (cluster compute) instance has 2 quad core processors. The machine on the Top 500 list has 7040 cores. So at 8 cores per instance (880 total instances) and $1.60/hr per instance, that comes to $1408.0/hr to run this machine. No idea ho
266.
by RK 16y ago
Interesting. I just read the article Can Cloud Computing Reach the Top500? , which concludes that EC2 won't crack the top 500. I wonder what changed. http://www.cs.utexas.edu/users/pauldj/pubs/uchpc09.pdf
267.
by RK 16y ago
I just want an official queue manager app from Netflix for Android.
268.
by RK 16y ago
Of course Roku runs Linux.
269.
by RK 16y ago
The volume of the body that's exposed to the radiation is smaller and that makes the energy absorbed per volume much higher. Much higher than what? I think the health risks are probably overplayed. I've only seen one article quoting an ex
270.
by RK 16y ago
I think that they have a "most fascinating submission story among all our apps" is more a symptom of the larger problems of the App Store than anything else.

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