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Comment Re:GPS needs an upgrade (Score 2) 55

QNSS is an augmetation system that relies on the existing Navstar/GPS infrastructure.

I wish some of the competing GNSS would support that kind of accuracy. There are lots of interesting applications.

None do - or all do. There are multiple regional SBAS systems in operation already:

WAAS, North America
EGNOS, Europe
StarFire (special end-point processing + SBAS data), worldwide

More are under construction or proposed, but still all depend on a GNSS
(or something close to it, India's IRNSS e.g. isn't global, but will do) for
their baseline position.

Comment Re:Most NTP clients I've seen... (Score 3, Informative) 132

That would work if the attackee uses only the attacker's server.
That's not how NTP is supposed to be used: It is designed to pull
time from multiple sources, weigh their accuracy/trustworthyness
over a longer time window against each other (with rather sophisticated
algorithms), and use the best ones as the time source to follow.

I usually go for 5-6 independent sources (with independent stratum0 masters!):
some national labs' PPS; GPS; etc. - this doesn't make an attack impossible,
but it mitigates the "the master time source is wrong" problem. This has
happend by accident before, so even without considering active attacks, it's
just the sensible thing to do.

Comment Re:What's the temperature of molten lava? (Score 1) 92

(the gravitational attraction of the shell drags the star along)

The gravitational attraction by a spherical shell is zero at every point inside the shell
(assuming uniform density of the shell material, of course).

So an asymmetry in the construction is not optional.

Comment Re:More like a bad design for voting system (Score 1) 57

There's also "Bulworth":

Politician is finished due to $I_don't_remember, and decides to put a contract on his
own head. So now that he doesn't give a damn anymore, he is honest towards everybody
for the rest of the campaign (and his life), which unexpectedly proves to be hugely popular.

It doesn't end well.

Comment Re:Yes, but can it launch Waze (Score 1) 235

"What is the population of capital of the country in which Space Needle is located?"

Hound correctly surmises that he's asking for the population of Washington, DC...

The Space Needle is in Seattle.

Correct. Which is in the US, the country with D.C. as its capital.
Read the question again...

Comment Re:C is not what people think it means (Score 1) 226

Wrong. But you illustrate perfectly what I meant when I said the way relativity is taught confuses people. You are actually a member of the vast majority of people that think you can't travel to a destination in less time than it would take light. You can!

No you can't.

If a light ray and your super rocket start from the same point towards the
same destination, the light will always be there first.

The effect of slowed down "clock time" in the rocket doesn't do anything
that would permit you to overtake the light.

Comment Re:it could have been an accident (Score 1) 737

It could still be hypoxia. Have a look at this video of someone trying to solve trivial tasks while oxygen deprived,
getting things hilariously wrong while happily being completely unaware of the fact.
(That's why "put on your own mask before helping others" is so important: If you don't,
it is very likely that you'll be too far gone to help anyone, yourself included.)

The pilot might have tried to unlock the door, might even have been sure he'd done
it multiple times – while repeatedly activating the lookout.

The descent is a bit trickier, but can still be explained by "completely stupid due to
oxygen deprivation": A descent is usually programmed at some time towards the end
of the flight, and he has done so hundreds of times before – so he did it again.

On the other hand, cockpit doors are solid, but not airtight, so the effect should extend to the
rest of the aircraft after some time. That's a point for premeditation.

Man, I so hope it was hypoxia...

Comment Re:feels like the 419. (Score 1) 229

in Indias case, rampant corruption and high unemployment combined with a tech industry that favours low worker pay and aggressively combats everything from workplace safety to union organization and benefits has led to the tech support scam, born from the confidence and trust of americans and europeans accustomed to the dulcet tones of the south asian tech support worker.

Americans and Britons (what about Canadians?). I doubt you'd find many
Indians fluent enough in French, Italian, Spanish, German, Polish, ...
who'd be available for this kind of scam.

Comment Re:But can we believe them? (Score 3, Informative) 99

Why aren't phones generating their own keys when they're activated at the store? Burn a fusible link if necessary. This would be more secure _and_ cheaper for the carriers. Oh, because NSA has plants on the GSM committees?

No, because the subscriber identity is linked to the SIM card (it's in the name...),
and not to the phone. You can switch a SIM card into any phone (some simlock
issues excluded) and just keep going with your one subscriber identity.

Or put another SIM card in your phone and use a completely different one.
It's great when traveling.

It's a feature - it's even a "we actually want this" kind of feature.

Every cloud has a silver lining; you should have sold it, and bought titanium.