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Comment Re:Sadly... (Score 1) 764

What may be catastrophic about AGW is not simply that it's occurring. As you note the Earth has gone through large climate changes before. The catastrophic part is that it looks like we'll see changes in 200 years that would take thousands of years during a natural climate shift. Natural systems aren't well adapted to handle that rapid of a change. The human race is almost totally dependent on many of those natural systems for its health and well being for the time being. Any disruption of those systems is likely to be disruptive to our civilization. We'll adapt I imagine but some of it probably won't be fun.

When you talk about the AR4's "devastating" projections are you taking into account the time frame? For instance it projects sea level rise of something like 0.5 meters by 2100. That's like 1/5 inch per year. (More recent projections however project 1-2 meters of SLR by 2100.) The change is slow on human time scales but it keeps going. More of the AR4 projections have been found to be conservative than overstated.

If I'm still around and functional in 20 years I'll buy you dinner in the restaurant of your choice just to celebrate that.

Comment Re:Everybody hatin' on PHP (Score 1) 192

That doesn't mean an experienced PHP programmer can't write secure code. I write database driven websites 6 days a week in PHP, and never use any of the dangerous methods in PHP.

We have our own API for escaping SQL strings, our own API for pulling data out of the HTTP request, our own API for converting a string into html.

Yes, PHP has a bunch of crap, but no-one forced you to use them. It's perfectly feasible to treat PHP like a lower level language, such as C, where you're forced to write all those little utility functions, because they aren't built in.

Comment Re:Got it (Score 1) 381

That doesn't really make sense on the modern internet, because most of the traffic is what you download - be it web pages, JPGs, MPGs, or streamed video. From a technical standpoint this is being sent to you, but (in general) at your request.

Also, a system where every website in the world gets billed by every ISP in the world would be an administrative nightmare.

Comment Re:Got it (Score 1) 381

But surely the telephone poles and wiring conduits would also be owned by the company that put them there? Also I imagine much of the cost is the process of stringing the wires and any digging and refilling.

If you are suggesting that local government could provide the poles and conduits, is there any reason they shouldn't also provide the lines?

Comment Re:Got it (Score 1) 381

Certainly they need to advertise any applicable data charges or limits. But why would you want a burst line instead of a data limit? I don't see the advantage, at least not for normal usage patterns. What most people want is full speed when they are using the internet, without being charged for full speed 24/7.

Theoretically I suppose if you were sent unsolicited packets this would run up your meter, but AFAIK this has never become a problem in New Zealand.

Of course, most people don't want to risk being faced with an unexpectedly large bill, which is why most ISPs in New Zealand offer capped plans: instead of paying extra when you hit your limit, your bandwidth gets cut down.

Earth

Cooling the Planet With a Bubble Bath 219

cremeglace writes "A Harvard University physicist has come up with a new way to cool parts of the planet: pump vast swarms of tiny bubbles into the sea to increase its reflectivity and lower water temperatures. 'Since water covers most of the earth, don't dim the sun,' says the scientist, Russell Seitz, speaking from an international meeting on geoengineering research. 'Brighten the water.' From ScienceNOW: 'Computer simulations show that tiny bubbles could have a profound cooling effect. Using a model that simulates how light, water, and air interact, Seitz found that microbubbles could double the reflectivity of water at a concentration of only one part per million by volume. When Seitz plugged that data into a climate model, he found that the microbubble strategy could cool the planet by up to 3C. He has submitted a paper on the concept he calls “Bright Water" to the journal Climatic Change.'"
Hardware Hacking

Home-Built Turing Machine 123

stronghawk writes "The creator of the Nickel-O-Matic is back at it and has now built a Turing Machine from a Parallax Propeller chip-based controller, motors, a dry-erase marker and a non-infinite supply of shiny 35mm leader film. From his FAQ: 'While thinking about Turing machines I found that no one had ever actually built one, at least not one that looked like Turing's original concept (if someone does know of one, please let me know). There have been a few other physical Turing machines like the Logo of Doom, but none were immediately recognizable as Turing machines. As I am always looking for a new challenge, I set out to build what you see here.'"
Medicine

Brain Surgery Linked To Sensation of Spirituality 380

the3stars writes "'Removing part of the brain can induce inner peace, according to researchers from Italy. Their study provides the strongest evidence to date that spiritual thinking arises in, or is limited by, specific brain areas. This raises a number of interesting issues about spirituality, among them whether or not people can be born with a strong propensity towards spirituality and also whether it can be acquired through head trauma." One critic's quoted response: "It's important to recognize that the whole study is based on changes in one self-report measure, which is a coarse measure that includes some strange items."
Science

Colliding Particles Can Make Black Holes After All 269

cremeglace writes with this excerpt from ScienceNOW: "You've heard the controversy. Particle physicists predict the world's new highest-energy atom smasher, the Large Hadron Collider (LHC) near Geneva, Switzerland, might create tiny black holes, which they say would be a fantastic discovery. Some doomsayers fear those black holes might gobble up the Earth — physicists say that's impossible — and have petitioned the United Nations to stop the $5.5 billion LHC. Curiously, though, nobody had ever shown that the prevailing theory of gravity, Einstein's theory of general relativity, actually predicts that a black hole can be made this way. Now a computer model shows conclusively for the first time that a particle collision really can make a black hole." That said, they estimate the required energy for creating a black hole this way to be roughly "a quintillion times higher than the LHC's maximum"; though if one of the theories requiring compact extra dimensions is true, the energy could be lower.

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