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Programming

Simpler "Hello World" Demonstrated In C 582

An anonymous reader writes "Wondering where all that bloat comes from, causing even the classic 'Hello world' to weigh in at 11 KB? An MIT programmer decided to make a Linux C program so simple, she could explain every byte of the assembly. She found that gcc was including libc even when you don't ask for it. The blog shows how to compile a much simpler 'Hello world,' using no libraries at all. This takes me back to the days of programming bare-metal on DOS!"
Music

RIAA Insists On 3rd Trial In Thomas Case 280

NewYorkCountryLawyer writes "Not satisfied with the reduced $54,000 verdict which the Judge allowed it in Capitol Records v. Thomas-Rasset, representing approximately 6500 times the amount of their actual damages, the RIAA has decided to take its chances on a third trial, at which it could only win a verdict that is equal to, or less than, $54,000. Since a 3rd trial in and of itself makes no economic sense, and since the RIAA's lawyers inappropriately added 7 pages of legal argument to their 'notice', it can only be assumed that the reason they are opting for a 3rd trial is to hope that they can somehow bait the Judge into making an error that will help them on an appeal."
Communications

First Room-Temperature Germanium Laser Completed 80

eldavojohn writes "MIT researchers have built and demonstrated the first room-temperature germanium laser that can produce light at wavelengths suited for communication. This achievement has two parts: '[U]nlike the materials typically used in lasers, germanium is easy to incorporate into existing processes for manufacturing silicon chips. So the result could prove an important step toward computers that move data — and maybe even perform calculations — using light instead of electricity. But more fundamentally, the researchers have shown that, contrary to prior belief, a class of materials called indirect-band-gap semiconductors can yield practical lasers.' While these are only the initial steps in what may become optical computing devices, the article paints it as very promising. The painful details will be published in the journal Optics Letters."

Comment Re:Too bad we don't have rules to deal with this (Score 1) 839

I don't brake at every green light, but I do sometimes wait a half a second or two when the light turns green to make sure that the dumbasses have finished running the red light, rather than just jump on the gas and get t-boned. Are you the type that is in the car behind me laying on the horn 0.01 milliseconds after the light turns green, or indignant that I don't make a left turn in the path of an oncoming cement truck?

Comment Re:Why Are We Deferring to an Economic Organizatio (Score 1) 715

And for some reason, we're not demanding they open the sequencing data on the cancer gene we just accepted that story and we trusted those scientists.

Are you sure we're not? I haven't seen a published genomics paper in years that doesn't have the raw data accessible in some form. It's a requirement for most major journals, as well as from most funding sources. If you want to publish, you release the data.

I agree with you that every moron thinks they can analyze the climate data better than the entire field of climatologists. Relatively few people think they understand particle physics better than the people at CERN; but somehow everyone thinks they're an expert on climate change after reading a few headlines that they instinctively disagree with (although they don't actually understand). Science is rarely a good spectator sport.

Comment Re:Sh..... (Score 1) 534

Some of them, yes, were certainly the "best and brightest". The problem isn't with the personnel in the military that are operating this technology, it's with the corrupt procurement system. These systems were designed and built by the big defense contractors, and they were paid handsomely to do so. There's no incentive for them to be cost-effective, or to go above the minimum requirements. Heck, if they don't meet the minimum requirements they'll get a new contract to fix their mistakes in a few years. These systems take so long to get in place that they're outdated by the time they hit the ground. And the way they are designed, spec'd, and implemented means that simple updates take years and billions of dollars.
Image

The Perfect Way To Slice a Pizza Screenshot-sm 282

iamapizza writes "New Scientist reports on the quest of two math boffins for the perfect way to slice a pizza. It's an interesting and in-depth article; 'The problem that bothered them was this. Suppose the harried waiter cuts the pizza off-center, but with all the edge-to-edge cuts crossing at a single point, and with the same angle between adjacent cuts. The off-center cuts mean the slices will not all be the same size, so if two people take turns to take neighboring slices, will they get equal shares by the time they have gone right round the pizza — and if not, who will get more?' This is useful, of course, if you're familiar with the concept of 'sharing' a pizza."

Comment Re:Nice try (Score 3, Insightful) 736

And lastly...I'm sorry but if the friggin tree ring data is not valid for assessing temperature after 1960, then it is not valid assessing temperature before 1960.

There's about a million possible reasons why tree-ring observations don't seem to work for relatively recent data. It's possible that newly formed tree rings change somewhat in the 30 or 40 years after they are initially formed until they reach a "stable" form. It's possible that the substantial increases in CO2 in the atmosphere in recent years has altered the way that tree rings form.

All measurement methods have their anomalies. MRI scans are a great way to look at the structure of the brain, but they have substantial distortions, that change from machine to machine. Some of these have to do with the type of machine, and some distortions are due to things like the earth's magnetic field or the building that houses the machine. Those have to be corrected for, and it's standard practice. And, scans of young children don't give the same results, because the brain structures haven't matured, so it's difficult if not impossible to distinguish many brain structures. That doesn't mean it's not a useful method, but one does need to keep the limitations and difficulties of each measuring methodology in mind.

There are very accurate temperature measurements recorded for many places dating back to the late 1700s, recorded using a thermometer. If the tree rings for those areas match very well for the 150 years prior to 1960, but begin to diverge after that, it wouldn't be that outrageous to suggest that the inability to use them as a measurement proxy for recent times is just a limitation of the system.

It would be nice to have perfect measurements for everything. However, for those of us in the real world, all measurements have errors and limitations, and we have to adapt for these. Simply dumping uncorrected, uncalibrated, or inaccurate measurements into the pool of data does not make things clearer.

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