Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror

Comment: Re:me dumb (Score 1) 151

by BitZtream (#49548713) Attached to: Wormholes Untangle a Black Hole Paradox

but that means time travel,

NO IT DOESN'T. I REALLY wish people would stop saying these things.

Using traditional methods of propulsion to accelerate in normal space-time causes time dilation.

The formula entirely falls apart when you hit the speed of light which according to the formulas in question require infinite energy.

FULL STOP.

Leaving one location and arriving at another faster than light traveling through normal space does not require that you do exactly as specified above.

If you can avoid the acceleration portion, its a whole new ball game.

If you can avoid traveling in normal space-time, then you've just potentially solved the problem entirely.

Neither of these two things have been proven impossible, although very improbably for the former.

A blackhole is already not normal-space time, the formula in fact breaks down inside a black hole. A wormhole (which can mean any number of things) connecting two black holes? Thats pretty far from normal-space time and certainly, in theory, allows for things such as leaving point A and arriving at point B before the light traveling between the two does.

Light does not travel in time at all from its perspective.

You can't fly a 747 by shooting a jet of water from the top of it up into the sky, you can make it fly using all the other normal aerodynamic principles that keep us as happy fliers. Just because you know it won't work one way doesn't mean their isn't a way we haven't discovered yet to accomplish the same thing from a practical perspect, and you really should stop implying that FTL == Time Travel. The equations that produce that 'theory' break down at the speed of light, so you can't use them to make assumptions about what happens after that.

Comment: Seems to not understand how it works (Score 2, Informative) 129

This guy seems to think the fact that his computer is usable is an exploit. He doesn't mention anything that isn't just documented and known as the 'way it works'.

Pretty much everything he talks about makes it clear he doesn't actually understand the features and how they actually work. Every comment he makes ... makes almost no practical sense. Its not technically incorrect, its just pointless and doesn't actually mean anything from a security perspective. Its like saying These makes are insecure; the sky is blue; and magically the second is supposed to backup the first.

Comment: Re:Back to the future (Score -1, Flamebait) 78

by BitZtream (#49532907) Attached to: Facebook's "Hello" Tells You Who's Calling Before You Pick Up

A couple things to note:

It doesn't work on an iPhone, third party apps aren't allowed to steal information from you typically on iOS where as that is on by default on Android and its completely acceptable to steal your data.

iPhone owners typically purchase the phone AS a product. Android users typically ARE the product.

No one cares about the remaining 3 blackberry users or the 10 Windows Phones in the MS test lab.

Comment: Re:Eh? (Score 1) 63

by BitZtream (#49509783) Attached to: If Earth Never Had Life, Continents Would Be Smaller

Awe, cute, you're trying to show us how smart you are ... but you did just the opposite.

Let me help you:

It had never occurred to me to consider that life might cause erosion. That's usually what wind, rain, and gravity are famous for, isn't it? Plant life is pretty famous, surely, for countering erosion by stopping soil getting washed away (a lack of which leading to occasionally disastrous consequences in flash floods, for example).

I went to school in central Florida, widely accepted as a pretty shitty school system in relation to America, which in turn is considered to have a pretty shitty school system in relation to the rest of the civilized world ... yet, you some how managed to attend a school system that didn't bother to teach basic Earth Science in elementary school where everyone learned exactly this. Roots help break rocks into dirt by enlarging any crack they can find, ever so slightly, which allows more water in to do things like freeze and expand to break rock or wash dissolvable bits out.

Milk-dunked cookies don't carry liquid water in their pores. They carry milk. So the sediments are more like water-dunked cookies, moreso because they both taste yucky.

Awe, now you're trying to be ultra-literal. This just makes you look like a douche, for reference. You know what they were saying or you're a complete and total moron without enough reading comprehension skills to qualify to participate in a slashdot discussion.

That's very confusingly written. The first sentence say "if life never evolved on Earth...continents there would then shrink." But then how did those continents get so big in the first place? Surely shrinking continents is only the case when life did evolve, but then theoretically all dies off.

Are you really that stupid? It wasn't confusing, it was perfectly simple to understand, if you aren't trying to make it more complex than it is. Again, if this was difficult for you, you're reading the wrong web site, and so is anyone who modded you up.

Comment: Re:America (Score 1) 120

by BitZtream (#49509621) Attached to: Pull-Top Can Tabs, At 50, Reach Historic Archaeological Status

he guy from Philadelphia lost to a Floridian who not only did the full North-South route, but the East-West route. Over 1000 miles totally within Florida.

Then he deserved the prize for shittiest route planner. I can track 5,000 miles in Florida if I drive the costline a couple times before actually heading to my destination. Just because the guy picked a horrible route doesn't make the state that large. Basically what you're saying is the guy drive A1A and I-95 from key west to the Georgia -Florida line ... THEN decided to cut west on A1A back to I-10 and took I-10 to someplace like Pensacola.

Yea, its possible, but its stupid. Its like driving from Atlanta to Boston ... via Chicago.

To drive over 1000 miles in florida, you have to intentionally take the long route, you can't do it by taking ANY optimal or near optimal route between ANY 2 points in the state.

Florida != Texas or Alaska

Comment: Re:IBM PC was an open platform (Score 1) 179

by BitZtream (#49489933) Attached to: Cyanogen Partners With Microsoft To Replace Google Apps

Compaq et al were able to create clones because the IBM PC was an open platform.

Wow, you know nothing about what happened, do you? Are we really already to the point where people don't have any idea how 'locked down' the PC was when it first came out? We've already forgot? Oh, you misread a Wikipedia article ...

IBM fought tooth and nail to prevent Compaq from being able to sell generic 'PC's and they had to go to great lengths to emulate the IBM BIOS without actually using any code to avoid lawsuits.

IBM saying its 'open' does not mean what you think it means. It doesn't mean you can get the specs and information for free, or even for the same price as the last guy. IBM means 'open' as in they are 'open' to charge you whatever the fuck they want to allow you into their system. It was about as open as any game console now days.

Comment: Re:Kind of a dup, but here's a link that explains (Score 4, Interesting) 113

This story is just a slashvertisement.

The story linked (now linked in the summary) is to a guy making silly ignorant statements about how the GAO is wrong but in such a vague way that I can safely say the guy making these silly comments is wrong. He's arrogantly implying that no aircraft can be hacked because they never make any mistakes and use separate systems and a special software device (thats not a firewall!) that acts as a firewall and doesn't let the two connected networks communicate with each other ...

Also he seems to think that engines 'breath' air, and that the air inside the cabin of an airliner is not at all isolated from the air that goes into the engines.

In short, the summary refers to an article written by someone that claims to be a security expert AND pilot while at the same time making incredibly stupidly inaccurate blanket statements that any useful security officer and certainly any pilot know are too broad and vague to be true or just flat out wrong.

There most certainly IS a firewall between the passengers and the engines on commercial jet aircraft, otherwise the people would die at 30k feet. The fact that he claims to be a pilot and then claims there is no separation between the cabin and exterior is just scary.

And claiming that this other special box ... that acts as a firewall ... but since they gave it another name, its not actually a firewall, so therefor its not possible to be hacked and bypassed.

The reality of it is, what the GAO said IS TRUE. IT IS possible that 'hackers' MIGHT be able to cross the network boundaries if they are physically connected, anyone who claims this is not true knows absolutely nothing about IT security or security on complex systems in general. You work really hard to prevent it, and make certain design decisions to make it hard to cross that gap, but the instant they are connected, you've created the possibility. You can't honestly claim that your network is 100% secure and impeneratble which is what this guy is trying to claim ... about aircraft that he's never had anything to do with, never seen, knows nothing about the internal operation of ... just because he's a pilot doesn't make him suddenly privy to private information internal to Airbus or Boeing.

Once again, I repeat, this is nothing but a shitty slashvertisement. They probably paid timothy to post it to the front page, which explains why it was done in such a hurry the first time and didn't even have a fucking link in it.

Comment: Without them completely? No (Score 4, Insightful) 363

by BitZtream (#49469229) Attached to: Can Civilization Reboot Without Fossil Fuels?

Without them for energy? Yes.

Fossil fuels are far more important as fertilizer and medicine than they are as energy products. We can, fairly easily, replace them as energy sources with alternatives that may be more expensive but are viable.

We don't have shit for a way to replace the fertilizer supply, which means we'd probably have a great dying due to starvation if we completely abandon fossil fuels.

Then of course theres all the medicines we make from oil. If the starvation dying doesn't get you, the lack of medical supplies is going to curb another large portion of our population.

Comment: Re:Speedups? (Score 1) 209

by BitZtream (#49467457) Attached to: Linux Getting Extensive x86 Assembly Code Refresh

If you consider that the C compiler itself uses assembly to make the basic operations work in the libraries, and that all C code is built on assembly libraries, then it makes the whole argument kind of silly, doesn't it?

ALL the kernel code is assembly on Linux and BSD, some of it is just raw assembly, and other bits of it are assembly encoded in "C".

The couple in that most languages and VMs are written in C ... as well as all the libraries that these things depend on to actually get something else done ... well then pretty much everything is reduced to assembly ...

Comment: Re:Still a useless exemption (Score 1) 74

by BitZtream (#49450453) Attached to: Amazon Gets Approval To Test New Delivery Drones

Or not, since we can wait 5 years, see how other countries have done it, pick the best methods to manage it and move on.

Amazon will be happy to return its test program to the US at that point.

You do realize some of the reason countries are making it easier than the US is specifically to have the initial research done on their soil, not because they intend to stay the way they are, which will end when various things go wrong, like the Amazon team coming back drunk from a Friday lunch and flying into a school bus on its way home.

Comment: Re:1st (Score 1) 74

by BitZtream (#49450419) Attached to: Amazon Gets Approval To Test New Delivery Drones

No you won't. Any decent "drone". Will just land or return to base if primary or secondary radio links are lost. If GPS lock is also lost, it will just land where it's at.

You aren't even a little bit clever and you clearly don't know enough about the state of drones to start making bullshit claims about making it crash. Even the basic OSS flight controllers are well beyond your abilities based on how easy you seem to think it is.

Just because you saw something on the Internet about Syria or Iran redirecting US MIlitary drones doesn't mean that's what actually happened.

All of my fully autonomous drones are not going to come down due to RFI, since RFI is so common place that they are designed to deal with it naturally, even without the threat of haxors. My radio links are digitally signed packet networks, you aren't pretending to be my radio transmitter though not encrypted so you could watch the data flow, it's pretty useless to you. If you confuse it with bad packets, it will just ignore you and stay on its preprogrammed flight plan or potential it's "radio signal lost" plan, which personall I just set to RTB.

No gps lock has the option to hold position and wait or just land immediately.

Really, we thought of people as clever as you probably well before you were born.

Comment: Re:Can we stop pretending this isn't low level war (Score 3, Insightful) 81

Other than you saw some other moron on the Internet say 'China Did It' ... can you provide some actual proof to back up your claims.

It is simply stunningly illogical for China to behave this way against such petty targets. It makes absolutely NO sense for them to flaunt their ability and willingness to do so as the simple course of action the entire reset of the world would take is a simple matter of NULL routing China and going on about their daily business, your 'war' would be over before anyone really cared.

And ... a DDoS does pretty much nothing to gain you access to government servers or trade secrets.

WTF is it with you nut jobs who seem to think the entire world is out to get you regardless of cost to themselves?

Slashdot is pretty much the only place on the planet that thinks this is an actual attack by the Chinese, perhaps you should ask yourself why? And no, before you get the idea, its not because slashdot is so smart and so far ahead of the general public, that ended 10 years ago.

You cannot have a science without measurement. -- R. W. Hamming

Working...