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Submission + - Main frequency irregularities confuse European clocks

elgatozorbas writes: This short notification by the European network of transmission system operators for electricity stirred a lot of attention. Apparently the European power grid frequency has been off since mid-January, causing some clocks to run behind by 5 minutes. How common are these mains-frequency synchronized clocks anyway, and wy are they built that way?

Comment Re:Cost and workability vs strength (Score 1) 251

Steel and aluminum in particular are NOT "easily recycled" - in fact that's a much more expensive process than creating engineered wood of any type by a factor nearing 100x

To use a French term: bullshit. Recycling aluminum is as easy as tossing it into the furnace. Unless you're going to claim mining the bauxite, transporting it, refining it, THEN heating it into ingots is somehow less expensive than transporting flattened cans to a mill and dumping them in the furnace.

While the thing you say -i.e. that recycling aluminium is much cheaper than creating it from bauxite- may be true, and the OP may be wrong, you are not replying to the OP's statement, which is that the recycling of aluminium is more expensive than the creation of the "engineered wood".

Comment Re:The Bitcoin challenge (Score 1) 326

With all of the geniuses on Slashdot, it's hard to understand why they aren't the most wealthy people in the world.

Not participating may not make you "the wealthiest people in the world", but it prevents you from becoming the poorest. I imagine Slashdotters don't participate in lotteries and pyramid schemes either, for the same reason.

Comment Re:I went to college with two climate scientists (Score 1) 624

The single best thing you can do to help prevent climate change (that doesn't involve murder / suicide) is to not have children.

The biggest impact on climate change is if idiots like the US americans reduce their personal carbon emissions. Using 4 times as much energy per person as an European, and ten times as much as an African is not necessary, you can easily solve that, but you don't want to.

Agreed 100%.

However... if they don't have children, all of this will certainly end within 100 years. I therefore do not feel impressed by "green" hippies with a large offspring. They may live ecologically on their moral high ground -though typically even that is debatable- but who guarantees their children or grandchildren will? Moreover, if they have more than two children, they have lost their climate case completely, because that leads to an exponential growth that can never be sustainable. Unless, of course -the classic argument- other people have less children. But that is not the "hippie's" merit.

This situation becomes even more embarrassing if following George Carlin's take on this, which is that "green" parents don't give a f*ck about the planet. They just want a nice place for their children to live. All of this is very opportunistic. But because children are today's Holy Cow, none of this can be mentioned by "selfish childless misanthropes".

Comment Re:Good response (Score 1) 264

... I was under the impression that certain astronomical measurements would imply the existence of a sim, but are not required for us to be in a sim.

No. Certain measurements could suggest the existence of a sim. They don't imply the existence of a sim. Most likely they indicate we have an incomplete understanding of the thing we are measuring and no sims are in the story at all.

Honestly I am getting a bit tired of all this "what if?"-new-age talk. If all you have is a hammer, everything looks like a nail. If AI finally is beginning to get somewhere -and nowhere near where we want to be- theories about the universe being a sim are popping up constantly, even though there is no good reason whatsoever for this assumption. At some point, science was about Occam's razor shaving off all unnecessary fluff. Now we are just inventing new fluff because... why actually?

Comment Re:Time to add encryption to civilian GPS? (Score 1) 194

An attacker can receive the satellite signal and retransmit it.

In case the attacker only wants to shift the time a bit -which could be important for communication networks- this would not be too hard indeed. If, on the other hand, he wanted to do a spoofing of the position, that would require capturing the satellite signals and delaying them individually. For the civilian code, the separation of the satellite signals can be done easily by digital correlation. However, because the military code is not publicly known, the isolation of the signals can only be done using large dish antennas, each of which has only one satellite in view. One would need at least four of those, and they would need to track the satellite positions. While not impossible, this much less trivial, especially without being spotted, because the receiving antennas would need to be close to the target.

Comment Cool and humble (Score 1) 61

Is is really cool that they not only show their successes and can put things in perspective. It is rocket science, things are complex and do not always work out as planned. Especially the first time. And the second. And...

It is also motivational for others to see that even highly specialized companies need some learning too. And succeed in the end.

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