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Comment Re:Good for pre-teens, but not older (Score 1) 607

Personally I wouldn't use this for [...]

This isn't for your children or for mine. But this is for the parent who is not letting their kids out unsupervised. If this enables kids in such families to have to chance to go out on their own without constant adult supervision then this is a good thing for them.

Comment Re:Idiots (Score 1) 475

But [microwave induced "shaking" of molecules] could potentially alter how well the garlic grows, how bitter it is, how fertile the seeds are, and so on

Certainly if you put a growing garlic plant in a microwave oven and hit it full blast it would effect how it grows. But the microwaves we are talking about are so weak as to be truly negligible. If you read the article, you will find that the power is several orders of magnitude less than what would prevent the crops from getting an "organic" label. And even that cut-off is meaningless.

It's pretty clear what is going on with this particular farmer. He is one of the many people who see modern technology as a dangerous tampering with nature and the natural order. He was grasping at straws with his talk of "shaking molecules" and "genetic mutation". What we need to consider in these cases is not the specific claims that people like this make about science. Those will invariably be nonsense. We need to consider what underlies his panic.

Of course what underlies his panic is also irrational, but we need to remember that a lot of people share that (although to a lesser extent). Somehow, I don't know how, we need to address those fears.

Comment Re:Ooozing sympathy ... (Score 1) 66

I largely agree. When we moved to Texas, my wife wanted a house by a creek. Everything we looked at was built above the flood line, but by quick inspection I could see which houses were going to be undermined by repeated flooding of their creeks. (For some houses the "upper" backyards were already peeling away.)

Once we moved into a place (with a very solid retaining wall just where it needs to be) I had to convince my wife that we shouldn't put in benches or swing sets in the "lower" back yard. She thought I was nuts until our first really big set of rains when we had a swing set delivered to our back yard from somewhere upstream.

Comment Re:Idiots (Score 1) 475

you also have facts wrong. "shaking" of molecules or also commonly mistakenly expressed as "resonance" doesn't occur in traditional household microwave dielectric heating appliance. but rather microwave "rotates" dipole molecules by altering electric field, hence creating rapid collisions resulting "heat". resonance happens at 10 times (20Ghz) that of traditional microwave (~2.4Ghz). so yeah... try to get your own facts right... :)

Thank you for the elaboration of some of the mechanism by which microwaves shake water.

I had thought of putting in a note that "shaking" isn't the best word for describing how microwaves heat water. I had mistakenly thought that given the context, I would be cut a little bit of slack there. I was just trying to point out that the idiot's talk of "shaking" wasn't as far from the mark as what the post I was replying to suggested. None the less, I acknowledge that just as the rag that wipes the pot that calls the kettle black is the last to come clean, I should have been more precise and explicit.

Comment Re:Idiots (Score 5, Insightful) 475

The article is full of the sort of howlers [...]. Where do we start? "Shakes up the molecules" - clearly the phrasing of a person well versed in the concept of ionizing radiation! I'll use wi-fi all day and you can sit next to some cobalt 58 and we'll see what person's molecules get "shaken up" more.

We are talking about microwave radiation. Microwave radiation cooks food by "shaking" the molecules (of water). Of course that isn't going to cause genetic mutation. Yes the guy is an idiot, but if you're going to get into name calling, try to get your own facts right.

Comment Re:Are you crazy if you rush out and install it? (Score 1) 647

I have a G4 PowerMac which apparently won't run 10.6. Can Linux be run on this machine? Are there any stores/dealers/whatever that would do the install for me?

If you Google "ppc linux," the top hit

seems to answer many of your questions. I don't know about finding someone who will do the install for you, but it really shouldn't be hard to do it yourself.

Comment Re:Assault vs. defense (Score 1) 66

Thanks for that informative post, but if I were to get a firearm, I think I would go with a semi-automatic handgun loaded with snake shot. By far and away, the only think I'm likely to need to shoot is a snake.

A handgun would be less unwieldy for someone like me than a rifle. Any person I could ever see myself needing to shoot would be in the house. Snake shot is unlikely to kill anyone and is extremely unlikely to injure a non-target if I miss. Sure it probably won't stop a very determined attacker, but that is why I want a semi-automatic. I want neither range nor power. I want something light and usable by a poor marksman. I want to deter and frighten. If I'm going up against someone who knows what they are doing and is armed, then I've got no chance anyway.

But for the most part I'm one of those people who feel uncomfortable with firearms and is not at all comfortable with the fact that so many people in my state (Texas) have them. But accepting the Constitution is an all or nothing thing. It's not like the Bible where you pick and choose which bits to apply.

Science

6000-Year-Old Tomb Complex Discovered 83

duh P3rf3ss3r writes "National Geographic reports that a 6000-year-old tomb complex on 200 hectares (500 acres) has been discovered on the Salisbury Plain just 24 km (15 miles) from Stonehenge. The site has come as a surprise to the archaeologists who had thought that the area had been studied in such depth that few discoveries of such magnitude remained. The site, fully 1000 years older than Stonehenge, has been called 'Britain's oldest architecture.'"
Earth

A Supervolcano Beneath Mt. St. Helens? 180

We've discussed the supervolcano beneath Yellowstone a few times here (not going to blow, 2004; going to blow, 2008). Now scientists are pondering whether a large area of conductive material beneath Mt. St. Helens might contain enough magma that the area could be classed a supervolcano. The jury is still out on this one. Reader nhytefall sends us a New Scientist progress report. "Magma can be detected with a technique called magnetotellurics, which builds up a picture of what lies underground by measuring fluctuations in electric and magnetic fields at the surface. The fields fluctuate in response to electric currents traveling below the surface, induced by lightning storms and other phenomena. The currents are stronger when magma is present, since it is a better conductor than solid rock. ... [M]easurements revealed a column of conductive material that extends downward from the volcano. About 15 km below the surface, the relatively narrow column appears to connect to a much bigger zone of conductive material. This larger zone was first identified in the 1980s by another magnetotelluric survey, and was found to extend all the way to beneath Mount Rainier 70 km to the north-east, and Mount Adams 50 km to the east. It was thought to be a zone of wet sediment, water being a good electrical conductor. ... [Some researchers] now think the conductive material is more likely to be a semi-molten mixture. Its conductivity is not high enough for it to be pure magma.. so it is more likely to be a mixture of solid and molten rock."

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