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Comments

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'Optical Fiber' Made Out of Thin Air

Neil Boekend Re:What a silly title ... (115 comments)

Just increase the energy on the surrounding laser beams to evaporate any water in it's path. That way it can also double as a security measure.

yesterday
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China Plans Particle Colliders That Would Dwarf CERN's LHC

Neil Boekend Re:Earthquakes? (216 comments)

China is big. Saying China is prone to earthquakes is akin to saying the USA is prone to earthquakes.

2 days ago
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World Health Organization Calls For Decriminalization of Drug Use

Neil Boekend Re:Finally! (472 comments)

As much left in peace as a drug addict who injects everyone they meet with a bit of their crap.

I don't care about the damage a smoker does to themselves. I care about the crap they dump in the air I need to breathe.
Smoking at home is no problem. Smoking in your own car is no problem. Smoking in the train is a problem. Smoking in a restaurant is a problem.

2 days ago
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MIT's Ted Postol Presents More Evidence On Iron Dome Failures

Neil Boekend Re:Rubbish (433 comments)

Since there are reports of missiles exploding above people's heads and missile shrapnel dropping in target areas (a lot better than a functional warhead) I would assume that Iron Dome works after the booster phase. If it worked in the booster phase the shrapnel would fall short of the target area.
To defend against missiles in the boost phase they would have to react incredibly fast. That may be possible with future advances like THEL or similar laser based missile defenses. Laser is fast. missiles are relatively slow.

2 days ago
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MIT's Ted Postol Presents More Evidence On Iron Dome Failures

Neil Boekend Re:Actual Israeli - Iron Dome Works (433 comments)

I suppose when I've personally seen rocket cases shredded to pieces, it was because they blew up by themselves in the sky.

Well, seing as how qassam rockets are build exploding by themselves may account for some of them.

2 days ago
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MIT's Ted Postol Presents More Evidence On Iron Dome Failures

Neil Boekend Re:No Access (433 comments)

How many things are blown up by rockets doesn't mean much if you don't know how many rockets were send. It only tells you it's not 100%.

2 days ago
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Rocket Scientist Designs "Flare" Pot That Cooks Food 40% Faster

Neil Boekend Re:Improving cooking is not easy. (204 comments)

Yeah, well, that single wok was about three times as expensive as the rest of my pots and pans. But it is just sooo awesome.

2 days ago
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French Blogger Fined For Negative Restaurant Review

Neil Boekend Re:Barbara Streisand award (424 comments)

"There weren't many dog turds in the food"
"The rats were really nice"
"I won't post an extensive review because that would mean getting sued or lying"

about a week ago
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Selectively Reusing Bad Passwords Is Not a Bad Idea, Researchers Say

Neil Boekend Re:This makes sense. (278 comments)

If a bank lets you use ONLY a password to access your accounts it is clear that they do not care much about theft. The rest of their security will be similarly crappy. I would trust them with my mortgage. Not my savings or payment accounts.

My bank requires me to log in with a unique single use code. That code is generated by a "random reader". To generate a code I need to put my PIN card in that reader and enter the PIN.
After I have logged in I still need to sign my transactions. Also with a single use code generated by my random reader. This signing code requires me to enter a single use code that is generated by the bank and displayed on the signing page. Each signing event needs a different code, each code generates a different signing code to enter on the signing page (to prevent some man in the middle attacks.). Next I need to enter the total amount on my random reader (to prevent large problems in other man in the middle attacks).
For large amounts I also need to enter the bank account number in my random reader (to prevent large problems in other man in the middle attacks).

The app is slightly less secure once activated, but you need to sign (with the process described above) to activate your account number on that phone. If you never do that there are no phones that can access your account via the app. You can only pay to known bank accounts with the app. Only those you have already paid to (with the extensive signing procedure).

I like my bank. They have actually spend time to secure transactions. They have found ways to secure it without much hassle (the random reader is easy).
Maybe that is because they are on the hook if they can not prove that I authorized the transaction myself.

about a week ago
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Giant Crater Appears In Northern Siberia

Neil Boekend Sorry (122 comments)

It was a joke that got out of hand.

about a week ago
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People Who Claim To Worry About Climate Change Don't Cut Energy Use

Neil Boekend Re:LED Lightbulbs Re:user error (708 comments)

Multiplied by 2.5? Whaaaat? Where'd you get that number from? I know incandescents produce heat...but *that much* heat?

For that number to be correct the amount of heat an incandescent produces is irrelevant.
Each watt of heat the bulb produces must be removed by the AC. Typically an AC needs 1.5 times the energy it removes to remove that energy.
To get the complete losses we need to add the direct losses of the bulb (a factor 1) to the indirect losses of the additional AC work (a factor 1.5). 1+1.5=2.5.
A calculation example:
An 100 W incandescent bulb with 10% efficiency (this is a good bulb) produces 90W heat. To remove that 90W the AC must spend 90*1.5=135W
Total loss = the energy the bulb dumps + the energy the AC needs to remove that energy = 90+135=225 W.
If we replace that with a 20W powersaving bulb with 20% efficiency then that bulb produces 16W of heat for the same light.
This 16W must also be removed by the AC, which spends 24W doing that. Total energy cost for the waste heat: 40W
Total saved energy: 225-40=185W.
The directly saved energy is only 100-20=80W
That's a factor 2.3 over the direct energy savings alone.
Ok, my factor 2.5 was too simple. It does allow for quick calculations.

Does everyone have the top-of-the-line A+++ refrigerator? I can't afford one like that. I don't think that's a good basis for comparison.

I didn't mean that. I was trying to show that his light could very well be the biggest energy user in his house. Not that it is so in every house.
However, a class A refrigerator with approximately the same volume uses 318 kWh a year. My comparison site doesn't have worse than class A refrigerators at that size. With Kieskeurig (warning, Dutch) that means they are hard to get here in the Netherlands. The class A is only EUR 488 delivered, while the A+++ is EUR 599 delivered. Not outrageously more expensive.
Top of the line, yes, but mainly due to it's size. Not it's energy efficiency.

about two weeks ago
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Obama Administration Says the World's Servers Are Ours

Neil Boekend Re:Will this affect overseas profits tax evasion? (749 comments)

Up to a few years ago paying far more tax than required was done often here in the Netherlands. Not out of niceness, but because it was a good way to make more of it.

You see, when you had to pay, say E1000, and "accidentally" paid E10,000 the remaining 9000 would be paid back approximately a year later. For a time the interest the tax collecting agency had to pay over that was fixed at 7% (Don't pin me on the number. It was far higher than on savings accounts).
They fixed that to a flexible market conform interest a few years back because too many people were abusing it. It was really cutting into national tax income.

about two weeks ago
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Obama Administration Says the World's Servers Are Ours

Neil Boekend Re: Maybe, maybe not. (749 comments)

Hardly. If a company, based in Russia, gets a subpoena for their US department they can do what they want to prevent access. Stuff like revoking access for all US based employees is not illegal for them. The US government may not like it, but that matters not to the Russian company.
The US based employee has to take positive action to comply. Since (s)he can't do anything that is quite limited. Requesting restored access about it.
I would not like to be the US based employee in that case. The best that happens is that you get fired. The worst is fired, from a cannon, into the sun.

Now when the company in question is British (for example) stuff changes. In that case the US will send a request for the equivalent of a subpoena to GB and they will comply (since they are the US's lapdogs). Then the British company will have a demand they are legally obliged to fulfill.

about two weeks ago
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How a Supercomputer Beat the Scrap Heap and Lived On To Retire In Africa

Neil Boekend Re:Beowulf (145 comments)

Imagine the power usage for that cluster!

about two weeks ago
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People Who Claim To Worry About Climate Change Don't Cut Energy Use

Neil Boekend Re:He does know what it means (708 comments)

There is lies, damned lies, statistics and marketing.

about two weeks ago
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People Who Claim To Worry About Climate Change Don't Cut Energy Use

Neil Boekend Re:Energy Conservation (708 comments)

Nuclear and solar are useful. However, you can't control them with the speed required to keep the net stable.
Natural gas ramps up in minutes.
Solar is unpredictable. You can't ramp it up.
Nuclear is slow. A controlled shutdown takes days.
If we want to fully switch to those resources we need large scale electricity storage. For example 20% of daily use in storage. The US used 4,095 x 10e9 kWh in 2012 according to wikipedia. That's on average 11.2 x 10e9 kwh a day. Assuming that my 20% figure is sufficient, that would mean that 2.24 x 10e9 kwh of storage is required.
If we use Li-Po batteries with 265 Wh/kg that is approximately 8.5 million tons of Li-Po batteries.
Ergo, currently such energy storage is unfeasible.

I agree with you on the coal. I don't know any reason why we should continue using that, apart from price. It is not as slow as nuclear but not fast enough to fix fluctuations in electricity usage. Not by a long shot.

about two weeks ago
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People Who Claim To Worry About Climate Change Don't Cut Energy Use

Neil Boekend Re:LED Lightbulbs Re:user error (708 comments)

Do light bulbs use up *that much* of your electric bill? Huh. I thought that A/C or heating, plus refrigerator and other appliances took up 90% of your utility bill.

A/C: Incandescents produce heat, the AC has to work harder to remove that heat. Thus the energy savings should be multiplied by approximately 2,5 if the AC is running.

Heating: Heating electricity use can be lowered by using insulation and even moved from the electricity bill to the natual gas bill by using a gas heater. Not all places where people live need heating.

Refrigerator: Modern efficient refrigerators use far less power than lightbulbs use. Let's take a huge 215+89l refrigerator/freezer combo, class A+++: the Bosch KGE36MW40.
It uses approximately 149 kWh a year. If you have 10 bulbs of 50 watts running 3 hours a day that uses (10*50*3*365)/1000=547,5 kWh.

about two weeks ago
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German NSA Committee May Turn To Typewriters To Stop Leaks

Neil Boekend Re:Security requires availability! (243 comments)

The old adage, being so tragically expressed here in real world terms, that the only "secure" computer is locked in a vault at the bottom of an ocean belies the very nature of security.

I always thought that was the response to someone requesting a completely secure computer. To explain why the requester really doesn't want what they are asking for.

about two weeks ago
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People Who Claim To Worry About Climate Change Don't Cut Energy Use

Neil Boekend Re:user error (708 comments)

Modern dishwashers can be slightly more efficient than manual washing. But those A++ dishwashers are expensive.
Gas hot water over electric is not always an energy and cost saver. Usually the hot water is piped from the heater to the tap over a longer distance with gas heaters. The heat in the water in that piece of pipe is lost.
'round here the electric heaters are usually directly under the tap. 1 m of Ã10 mm (id) isn't much water. The gas heaters are often 10m away. With the same inside diameter that means there is 10 times as much lost heat.

about two weeks ago
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German NSA Committee May Turn To Typewriters To Stop Leaks

Neil Boekend Re:Enigma (243 comments)

Nah, they should post a security guard in full plate mail with a sword and everything.

about two weeks ago

Submissions

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Google privacy policy change

Neil Boekend Neil Boekend writes  |  more than 2 years ago

Neil Boekend (1854906) writes "Dear Google user,
We're getting rid of over 60 different privacy policies across Google and replacing them with one that's a lot shorter and easier to read. Our new policy covers multiple products and features, reflecting our desire to create one beautifully simple and intuitive experience across Google.
We believe this stuff matters, so please take a few minutes to read our updated Privacy Policy and Terms of Service at http://www.google.com/policies. These changes will take effect on March 1, 2012."

Link to Original Source

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