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Comments

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Student Records Kids Who Bully Him, Then Gets Threatened With Wiretapping Charge

Neil Boekend Re:Rewarding the bullies... (713 comments)

Streisand effect.

yesterday
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Lack of US Cybersecurity Across the Electric Grid

Neil Boekend Re:Low hanging fruit (92 comments)

Solar flares aren't exactly FUD.
A big CME that hits earth will take out the electrical grid on the side of the planet it hits.
Problem is, it would be unaffordable to prepare for the energy that would dump into the net. The currents would be massive and unlike lightning strikes a higher placed cable isn't going to fix it. You'd need to do something like equipping all masts with a lightning arrester AND make it possible to physically short the in- and outputs for all transformers. Then the amount of igniting/exploding transformers might be manageable.

yesterday
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Google Looked Into Space Elevator, Hoverboards, and Teleportation

Neil Boekend Re:Effectiveness of a space elevator. (93 comments)

1 km per day means the cargo will be highly irradiated by the Van Allen radiation belts.
Quite unsuitable for human transport.

yesterday
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First Glow-In-the-Dark Road Debuts In Netherlands

Neil Boekend Re:you're kidding me, right? (182 comments)

1. This isn't the first test. Labtests have been done extensively.
2. It's 500 meters. Not miles. Not even 1 mile.

2 days ago
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First Glow-In-the-Dark Road Debuts In Netherlands

Neil Boekend Re:Weather (182 comments)

That once a year that snow covers the road and the cleanup crews haven't been fast enough so it actually stays there (instead of turning into salt water) we drive a lot slower. Slower means you don't have to see as far ahead because you have more time to respond. It means the regular headlights are more effective.

2 days ago
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First Glow-In-the-Dark Road Debuts In Netherlands

Neil Boekend Re:Just use headlights (182 comments)

HID lamps should be illegal and the legislators who pushed for their legality should be arrested. Those damn things are dangerously blinding.

2 days ago
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First Glow-In-the-Dark Road Debuts In Netherlands

Neil Boekend Re:Video of the road (182 comments)

A tiny bit of electricity times 135.470 km of public roads is a lot of electricity.
(disclaimer: that doesn't mean it's a bad idea)

2 days ago
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First Glow-In-the-Dark Road Debuts In Netherlands

Neil Boekend Re:Useless (182 comments)

Apart from that, especially women don't feel comfortable going around in dark places where they perceive that there can be rapists hiding in the dark.

Instead they prefer to so be blinded by streetlights that they can't see the rapist hiding a few meters beside the light spot.
People are counterproductive at times. Streetlight makes most of us feel safe, besides the simple fact that they decrease safety in most cases.

2 days ago
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Using Supercomputers To Predict Signs of Black Holes Swallowing Stars

Neil Boekend Re:Impossible (31 comments)

Correct me if I am wrong, but my limited knowledge of what happens tells me this:
Probably, assuming the observer is infinitely strong and can survive the gravity shear and immense pressure of the black hole:
From the observers POV the universe speeds up, until the surroundings (except for the black hole itself) become a bright light, because time dilation causes the cosmic background radiation to appear like visible light.
Then the black hole evaporates due to Hawking radiation and the observer is free again. When checking an outside ("absolute") clock billions of years have passed but the observer only felt a relative short while. The observer never encountered anything that could be considered a black hole. Time dilation reached near infinite before it could get there. The observer did encounter a lot of mass, mass that was falling into the black hole, never reaching it because time dilation didn't allow it to reach anything.
This mass has unknown properties. It is far denser than neutronium. It is still falling towards the core, only slowed down by time dilation.
The star itself was torn apart way before the "visible cosmic background" part. It kept falling towards the black hole as part of that mass with unknown properties.

From the outside an object doesn't exactly fall into the event horizon. It falls towards it but slows down before it. The light reflected or emitted by the object gets redshifted to nothingness. The event horizon does grow to meet the object.
Assuming the event horizon doesn't grow extremely fast the object will be invisible due to extreme redshift. Whether it is torn apart by gravity shear before that depends on the mass of the black hole and the strength of the object.

2 days ago
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UN: Renewables, Nuclear Must Triple To Save Climate

Neil Boekend Re:NIMBY rules (424 comments)

Anyone caught on the construction site will be shot for for trespassing in a secure location.

In that case I wouldn't want to be a construction worker there!

3 days ago
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UN: Renewables, Nuclear Must Triple To Save Climate

Neil Boekend Re:Nuclear is obvious, an energy surplus is desire (424 comments)

Air filtration, chemicals for narcose/desinfectant/pre and post op medicine, a couple of people busy, hospital heating.
A sex change operation is quite expensive, even just energy wise. It may cost more to change from female to male than there can be saved.
Especially since adding those parts may not change a woman from semi coldblooded to warmblooded.

Although, if every woman did that the energy consumption would dropping quite far in a hundred years.

Oh and GPP probably meant whenever reasonably possible.

3 days ago
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UN: Renewables, Nuclear Must Triple To Save Climate

Neil Boekend Re:Adding yet another box (424 comments)

If the xbox would have been standby anyway then it doesn't matter. It's even unwise to add an appleTV's standby to it since however little that may be it's fully wasted.

3 days ago
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Navy Debuts New Railgun That Launches Shells at Mach 7

Neil Boekend Re:Difficult to defend against (630 comments)

If stuff like forcefields are allowed then you should just give your ship a General Products hull.

about a week ago
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Navy Debuts New Railgun That Launches Shells at Mach 7

Neil Boekend Re:Am i the only one? (630 comments)

Well, you could end each conflict by lobbing a few ICBM's at the enemy. That'd stop them for sure.

These weapons are an alternative to lobbing nukes. A nicer alternative, something akin to the difference between removing a tumor with a scalpel or with a sledgehammer. Neither is fun for the tumor, but the surrounding tissue prefers the scalpel.

about a week ago
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Navy Debuts New Railgun That Launches Shells at Mach 7

Neil Boekend Re:Difficult to defend against (630 comments)

Decelerating it with a magnetic field isn't feasible. The current in the railgun does 2 things:
1. It makes a hell of a magnetic field
2. It runs through the projectile. That current undergoes a Lorentz force due to the magnetic field. The Lorentz force moves the projectile.

How are you going to induce that current in a projectile that is heading towards you? Without it the magnetic field will not influence the projectile.

And that is besides the technical challenges in making a magnetic field with enough strength to stop this while enveloping the entire ship.

I'd upgrade the goalkeeper, but I am Dutch so that was to be expected.

about a week ago
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Navy Debuts New Railgun That Launches Shells at Mach 7

Neil Boekend Re:So... (630 comments)

That squared in "speed squared" is much of the fun.

about a week ago
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Navy Debuts New Railgun That Launches Shells at Mach 7

Neil Boekend Re:Aiming and targeting? (630 comments)

Luckily the shell rotates together with the planet. Although I can't imagine that that makes it easy.

about a week ago
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Navy Debuts New Railgun That Launches Shells at Mach 7

Neil Boekend Re:"Low Cost" (630 comments)

Depleted uranium has the tendency to ignite with air at 700 ÂC. It may be so that the compression heating from the speed exceeds that temperature. In that case the projectile may turn into a nice cloud of poisonous uranium oxide. On your ship.

In short: I'd advise a tungsten coating around the uranium if they go that way. The hull of the target ship will strip away the tungsten. The friction will make it exceed 700 ÂC. The scientists working on this probably already know that.

about a week 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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