
Slashback: Scramjet, Golden Ears, Preciousness 209
Everything that rises must come down under. spam-it-to-me-baby writes: "The Australian trial of a scramjet engine has fizzed. 'The experiment at the Department of Defence's Woomera Prohibited Area, 500 kilometres north of Adelaide, was not successful because the [United States-supplied] rocket experienced flight anomalies prior to the scramjet experiment,' an analysis of what went wrong says. Not to worry, another test is tentatively scheduled for next week, assuming researchers can work out what went wrong with this one on the way up."
Not to be confused with this previous scramjet test, also unsuccessful.
Ah, much better, I thought you were being unreasonable there for a minute. After Jamie drew attention to it in a Slashdot piece on Saturday, SafeSurf changed their legislative proposal. In Jamie's words, "Woo!"
That's not all he said, of course: "Please note that, now, they ONLY want to fine you thousands of dollars for failing to label anything you write that is harmful to an 8-year-old. What a relief! "The penalty for a first offense of failing to label or mislabeling material harmful to minors shall be limited to a fine of under five thousand dollars."
Bennett Haselton passed on this commentary as well:
"If you go to http://www.safesurf.com/online.htm in Netscape and "View Document Info", it shows it was last modified on October 29, 2001. (This function doesn't work in IE.)The original OCPA is [at google]. SafeSurf apparently removed this paragraph from section 6:
and replaced it with:Publishers may be sued in civil court by any parent who feels their children were harmed by the data negligently published. The parents shall be given presumption in all cases and do not have to prove that the content actually produced harm to their child, only that the material was severe enough to reasonably be considered to have needed a rating label to protect children.and then added three new paragraphs listing more exemptions from this rule."Publishers may be sued in civil court by any parent who feels their children were harmed by the data negligently published. The parents/plantiffs shall be given presumption, if the case involves graphic images, and do not have to prove that the content actually produced harm to their child, only that the material was severe enough to reasonably be considered to have needed a rating label to protect children.
Can you hear that pea through the mattresses? For the audio objectivists, a good update to CmdrTaco's recent MP3 v. Ogg Vorbis inquiry: E1ven writes: "Everyone is always arguing about whether Vorbis sounds better than MP3, or vice versa. Here is your chance to see who is right! ff123 is doing a set of Blind Listening tests and could use your help. The more ears the better!"
What does "harm" mean? (Score:3, Interesting)
I sure hate living in a police state. Do you?
Re:What does "harm" mean? (Score:3, Insightful)
Harm is anything you don't like, don't agree with, or don't understand.
You ain't seen nothin' yet!
Re:What does "harm" mean? (Score:1, Funny)
Re:What does "harm" mean? (Score:1)
Re:What does "harm" mean? (Score:5, Informative)
Re:What does "harm" mean? (Score:2, Funny)
http://nc.flyingbuttmonkeys.com/mirrors/safesurf-
They are calling their "anti-freedom" claptrap "The Online Cooperative Publishing Act", subtitled, "SafeSurf's Proposal for a Safe Internet Without Censorship".
Except that it is not only not without censorship, but also would legislate fealty to them.
I have a more accurate, but not catchy, title for their Proposed Law:
The "We would like to legislate a healthy bottom line for ourselves, and maybe put you in jail for using your First Amdnedment free speech and press rights, because we're a bunch of greedy assholes, so will you please cooperate, Act."
My children would be harmed by reading this act. "Why are some people so mean, daddy?"
Re:What does "harm" mean? (Score:2)
Instead, you sue them, and don't need to produce any evidence that your kid specifically was hurt. In other words, Third Party Syndrome is yet again getting passed as law.
Re:What does "harm" mean? (Score:2, Informative)
They do, however, have high suicide rates - this could either be to do with the lack of daylight in the winter, or kids realising that they're not hung like Ron Jeremey.
Other Countries? (Score:1)
=p
innocent till _proven_ guilty? (Score:5, Insightful)
whats going on with the land of the free? we're always told about the fact that in the US you're innocent until proven guilty.
maybe in the economic downturn we can't afford to wait before you're guilty.
I must be missing something, because without proof of harm, the kids wouldn't even need to see it! make money via surfing the web, I guess the offers were true...
Re:innocent till _proven_ guilty? (Score:4, Insightful)
Re:innocent till _proven_ guilty? (Score:2, Insightful)
Re:innocent till _proven_ guilty? (Score:1)
Re:innocent till _proven_ guilty? (Score:2)
Re:innocent till _proven_ guilty? (Score:1, Insightful)
Re:innocent till _proven_ guilty? (Score:5, Insightful)
Re:innocent till _proven_ guilty? (Score:4, Informative)
Innocent until proven guilty applies in criminal cases only. In civil cases, the default is "preponderance of the evidence" (i.e. more likely true or not). In many areas of civil law, though, the balance can be pre-tipped in this manner.
-Steve
Re:innocent till _proven_ guilty? (Score:1)
Re:innocent till _proven_ guilty? (Score:1)
Re:innocent till _proven_ guilty? (Score:5, Insightful)
Ok, lemme spell it out for the slow people...
The "common law" western court system as we know it is national in scope. That means that sovereign nations each independantly employ justice systems as they see fit.
There is no such system that is international in scope. Instead, it works kind of like the playground in grade school. You make friends (allies), make agreements with them (treaties), if you're rich you can give them some lunch money (foreign aid), and if you're big/brave/foolish enough you can also bully people around (sanctions, war, etc). All these playground-like social conventions are called "international law".
It'll be this way until sovereignity breaks down and all nations succumb to a global empire that can enforce its own laws wherever it wants. Then you won't have war, you'll just have rebels and revolutionaries. Doesn't that sound like fun?
what about ...? (Score:2)
Could we have a legal geek in here explain this bit please?
I just love all of these folks who want to make the mere existance of something they dislike a crime with an instant penalty.
Re:what about ...? (Score:2)
AFAIK, Innocent until Proven Guilty only holds in a criminal court. This is talking about civil.
Re: (Score:2)
interesting (Score:1)
Sore Loser Post: Croteam Switches to Ogg Vorbis (Score:5, Interesting)
Since Ogg Vorbis got another mention, it may be worth mentioning that Croteam [croteam.com], creators of the surprise hit 3D shooter, Serious Sam [croteam.com], have announced that their upcoming sequel will have its music encoded using Ogg Vorbis, replacing MP3. Writes Alen Ladavac, "We've tried encoding all the music for SE with Oggdrop at 64kbps and the quality was perfect even at such low bitrate."
I submitted this to Slashdot two weeks ago, and it was rejected. (Hence, "Sore Loser" in the title.)
Schwab
Re:Sore Loser Post: Croteam Switches to Ogg Vorbis (Score:1)
Heh, i posted about Battle of Britan, a WW2 flight sim gone open source, but do you think they was interested? Nooooo. They're more interested in the rants from Loki or whoever else who promises to deliver games to the Linux platform. *sigh* This is more like freshmeat, but with comments and moderation. *double-sigh*
Like if anybody around here would be interested in a flight simulator gone open source and could be ported to SDL. That is soooo un-interesting. Much more fun to have a debate about the last minor-point release fo Wine, yes sir.
Get the source here [dogfighter.com]
If you're just curious about the game [gamesfirst.com]
Re:Sore Loser Post: Croteam Switches to Ogg Vorbis (Score:1)
Victims? (Score:1)
Scramjet (Score:1, Interesting)
How much acceleration does one want to be subjected to?
Re:Scramjet (Score:2)
Re:Scramjet (Score:2)
But acceleration is simply how fast you get to that max speed, and that's not really an issue over long distances. You can bet that a bullet will accelerate faster than an SR-71 Blackbird, but the Blackbird's top speed is faster than a bullet. And the jet technology in a missile and in a 747 is basically the same. Over short distances though (like restricting the scramjet missile to the local patch of desert so that it doesn't land on a town 500 miles away!) you'll need high acceleration to get the thing up to speed over a shorter distance. This is also cheaper on fuel, and so allows a smaller, cheaper rocket to be used.
Grab.
Who cares what country the rocket came from? (Score:1)
Nice dig at the U.S., as if all of our rockets were poor quality. I'm not saying all of the U.S.'s rockets are perfect, they're not, but they're pretty much as good as anything else out there.
Translation for the thin skinned (Score:1)
It wasn't our test rig that stuffed up, but this rocket we bought.
No-one is saying that US rockets weren't good enough to get to the moon (except for some extremely weird conspiracy theorists who can ignore enormous amounts of evidence).
Re:Translation for the thin skinned (Score:2, Insightful)
Just because it came from the US, doesn't mean it's automatically gonna be flawless.. Maby it wasn't a perfect design, maby it got damaged in transit, who knows..
Re:Translation for the thin skinned (Score:1)
It's a good thing they didn't mention what OS the rocket was running.
Look to other sources for 'harmful' material first (Score:5, Interesting)
Welcome to the real world kiddies, violence happens and there isn't ANYTHING that you can do to stop it. I don't agree with the bill, as it would allow too many oo-they-have-money-so-lets-sue-them parents to take internet sites to court. And, it is especially bad for the children. When they get out to the real world, their parents won't be there anymore to sheild their eyes from the horrors of reality. Better let them see it while you're still there to explain it, than let them get smacked upside the head with reality when they turn 18 and/or go to college.
Honestly, this falls under the category of "political correctness." IMO, the world could use more political incorrectness. Also, by making it an offense to publish "harmful" material, it would drive more and more web hosting out of the USA, such that they couldn't be punished under that bill. In this economy and the shaky tech market, the last thing we need is to drive more business away from the USA.
We have freedom of speech? Not if any laws like these go into effect.
<SARCASM> (Note: Companies may like to check into the constitution before proposing legislation) </SARCASM>
Schools do feature porn, just not in the USA.. (Score:1)
Re:Look to other sources for 'harmful' material fi (Score:2)
You ARE innocent until proven guilty (Score:2)
Yes, this is a very bad proposal. Yes, it is probably censorship. No, it does not overturn the presumption of innocence.
Re:You ARE innocent until proven guilty (Score:2)
Could you give me one example where information has harmed anyone at all, child or not? Just one...
Re:You ARE innocent until proven guilty (Score:2)
I was traumatized when I learned that my parents had sex. (Can I sue them?)
Re:You ARE innocent until proven guilty (Score:1, Insightful)
lately I've been getting the impression that overzealous censorship like this is an adult manifestation of fear of cooties.
Nomination for quote of the day file! (Score:3, Insightful)
Lately I've been getting the impression that overzealous censorship like this is an adult manifestation of fear of cooties.
That's a beautiful sentence, and it needs to get some seriously wide exposure. It manages to convey the perfect sense of contempt that is the only fitting response to the "morality" brigade's attitudes.
As I recall, through a lot of these discussions, e.g., on some of the reports from town-hall meetings regarding library-censorship proposals, a lot of us have been frustrated with trying to articulate this. Not just pointing out how unworkable censorware is from a technical standpoint (true, but reducing the argument that far is granting too much). Not even just arguing for the importance of freedom (also a vitally important argument to make, of course). But attacking the fundamental immaturity of attitudes that lies behind all of their motives.
Why would they even want to do this? Even assuming it were technically possible (which it isn't), and granting that it were important enough to justify giving up so much freedom (which I don't) -- what kind of priorities does this indicate? Why, given all the really horrible things things in the world to which kids' "fragile litle minds" are exposed, not to even get started on the things that threaten them physically, would parents choose this to focus so much attention on?
I can only think that it's because the parents aren't really grown up themselves in terms of being comfortable with sexuality, and they can't even begin to contemplate it for their kids. They live in absolute dread of the day they'll have to give the "birds and bees" talk and will lash out at anything that threatens to hasten that day.
Maybe this kind of ridicule -- attributing the censors' fears to a failure to outgrow something as childish as "fear of cooties" -- could be an effective way to drive the point across in a pulic forum.
Re:Nomination for quote of the day file! (Score:2)
All this talk you hear of 'protecting children' is really about adult discomfort.
I remember as a teenager frequently going to the video store with my sister (four years younger) to pick out a movie for the family to watch. A lot of times, when considering some title, we'd ask each other "Do you think Mom's old enough to see this?"
It was a joke, of course. For one thing, in our case the answer was generally yes. And it wasn't really a matter of us being presumptuous enough to think we were so much more mature than our parents. It was more about [humorously expressing] a concern over the awkwardness and discomfort of watching certain things with them sitting on the same couch.
And it was uncomfortable sometimes (mostly because of strong language and, to a lesser degree, violence -- we tended to voluntarily steer clear of excessive sexual content for exactly these reasons). But a little discomfort is no reason to forego the valuable family activity of watching those movies together. Plus, my sister and I were even more liberal in recommending movies to our parents to watch separately, and vice versa.
I would suggest you check out this link.
Sorry, not from the office. I assume it contains stuff that you predict "even I" would find offensive? I doubt it, and not because I'm trying to "out-pervert" you -- I might very well find it excessive, uncomfortable, distasteful, or even disturbing, but I claim to be above being offended by anything of the sort.
Is it just me, or do you feel like you're being talked down to by the media?
The media, the government, the activists / would-be "morality cops",... It's not really clear who's most to blame. Society's overall attitudes seem to be suffering from a combination of intellectual laziness, (some) people's immaturity and "fear of cooties", politicians' willingness to exploit that through "sound-bite wars" at the exclusion of genuine dialogue, and media's readiness to stir things up in the interest of sensationalism.
By the way, in my previous comment I deliberately avoided mentioning the possibilities of other ulterior political motives since, though valid, that would have detracted from my main point. As in, "...and don't even get me started on how this is all really a malicious power grab aimed at undermining our freedoms, thinly veiled with 'protect the children' rhetoric to help push it through..."
I just have trouble comprehending the small-mindedness that could make anyone (let alone enough people to give it this sort of political critical mass) fall for any of it. Cooties, indeed.
Safesurf and spammers... together. (Score:2)
Sites can direct to subdomains (Score:4, Insightful)
Whats to stop these publishers from directing people to other subdomains that aren't labeled? This sounds like a rather large loophole in their policy. I guess if I ran a pr0n site I could label the index page, advertise only unlabeled subdomains and be protected from lawsuits. Sounds like the geniuses at SafeSurf did it again!
Re:Sites can direct to subdomains (Score:2)
So what happens if the kiddie does somehow get hold of the URL to an unlabeled subdomain (copy bookmarks on daddy's computer, e.g.)? I think the filter would block unlabeled documents unless you worked your way down to them from an acceptably labeled domain.
Of course, this will play hob with following URL's to MOST subdomains...
LAME vs. Ogg Vorbis (Score:5, Informative)
I don't claim to have golden ears, but I can distinctly hear the difference between different playback engines (example; on a Mac, the Audion playback engine is considerable better sounding than iTunes) and different encoding engines with nearly the same settings (LAME is, by far and away, the best I have heard yet).
In any case, it would be useful to have an expanded test that includes higher bitrates for those that listen to tunes on something other than crappy computer speakers.
Ogg vs. LAME article [digit-life.com]
An excellent Ars article [arstechnica.com] that only covers differences between mp3 encoders.
MP3 tech [mp3-tech.org] has a bunch of useful resources.
One of the best sites around, r3mix [r3mix.net] offers a wealth of technical information, some very well executed scientific and listening tests, and a section that destroys a lot of the myths surrounding mp3s.
Re:LAME vs. Ogg Vorbis (Score:2, Insightful)
Yes, it would be nice to have tests at 192 or 256 kbit/sec. It would also be nice to have tests at 96 or 64 kbit/sec to see which codec does best in low-bandwidth situations. But 128 kbit/sec tests are valid too. (If anything, this slants the test towards Vorbis enormously, since 128 kbit/sec MP3 sounds like crap even with a good encoder, while 128 kbit/sec Vorbis sounds pretty good.)
Basically: don't assume that you are the target audience of every test.
For MP3, sure. I prefer Vorbis.Re:LAME vs. Ogg Vorbis (Score:2)
For MP3, sure. I prefer Vorbis.
The two are not mutually exlusive. Newer versions (I'm seeing it in version 3.86) of LAME support ogg encoding with the --ogg option.
Has anyone here played with ogg encoding in LAME yet? I haven't tried it out and I'm wondering how it compares to oggenc.
Re:LAME vs. Ogg Vorbis (Score:1)
Re:LAME vs. Ogg Vorbis (Score:1)
Perhaps you have good ears, though, and were able to tell the difference in many of the samples. Have you taken the tests yet?
Re:LAME vs. Ogg Vorbis (Score:2)
I find that bladeenc encoded MP3s sound better than lame MP3s at 192+ kbit/s, but it might just be me.
Don't complain about the lack of options (Score:4, Funny)
5.0 = imperceptible (not perceptible)
4.0 = perceptible but not annoying
3.0 = slightly annoying
2.0 = annoying
1.0 = very annoying
They left out some important options. For example:
0.0 = extremely annoying, but imperceptible
-1.0 = the music is annoying
-2.0 = how do I compile the decoder again?
But it reminds me of...
Comment removed (Score:5, Insightful)
Re:I'm all for the OCPA! (Score:2)
Individual parents may be sued in civil court by any offspring who feels that they were harmed by the actions of their parents. The offspring shall be given presumption in all cases and does not have to prove that their parent's actions actually resulted in any harm to them, only that those actions could reasonably be considered to have the potential to harm the offspring or the offspring's development as a child.
What ever happened to parents parenting?
-Puk
I think I know why they made the change... (Score:4, Insightful)
Well heres a great opportunity for merchandising (Score:1)
Good to see that in all of this, the responsibility of the parents is being looked at so deeply as well.
--
Don't believe all inductive logic
I wrote to SafeSurf to ask... (Score:5, Informative)
To my surprise, they responded later the same day:
OK, sounds good. I responded to Ray as follows (two days ago), but have not yet received a reply:
Make of this what you will. I still have not seen the "open and truthful" list of websites that Safesurf's software blocks.
Re:I wrote to SafeSurf to ask... (Score:3, Informative)
Go to SafeSurf's site now. They describe the exact technical method by which they "block" sites. As their ref notes, sites are blocked by being marked by an administrator using a special HTML meta tag. SafeSurf do not, nor do they need to, administer a list of "blocked" sites. They don't even decide the ratings themselves. All SafeSurf do is provide the plug-in to read the metatags.
If you really want the list, and weren't just asking for it in order to display your ignorance, write a bot to crawl the web looking for their tags. But note that what is actually blocked depends on user settings in their plugin, combined with the rating on the site. So there is no "list of blocked sites".
Better luck next time.
Re:I wrote to SafeSurf to ask... (Score:2)
In the man time I encourge you to grab a free web space, and post your letters and replies.
I think a lot of people will be interested in your results.
If I had the points, I would of modded you up.
Are there any Ogg players? (Score:3, Insightful)
Re:Are there any Ogg players? (Score:2)
Re:Are there any Ogg players? (Score:1)
Also, i would suggest you don't re-encode mp3 to vorbis, you'll only lose more quality, and especially so because oggenc will be working hard to match the mp3 artifacts. Encode all your rips into vorbis by all means, but mp3s are generally better left alone.
Re:Are there any Ogg players? (Score:1)
What is the quality like on the HipZip? When MP3 first happened, I discovered that there can be HUGE quality differences between devices when I bought a D-Link MP3 player that (a) cut off the first four seconds of every file during playback, (b) added its own "pops" and "skips" which didn't occur when playing the same MP3 file back on a PC and (c) started dropping plastic parts on the floor within two or three months.
With Iomega's track record (i.e. ZipClicks) I'm a little wary about using another product based on the same fundamental technology... Do you (or does anyone) who has a HipZip have any complaints and/or endorsements, durability or quality-wise?
Re:Are there any Ogg players? (Score:1)
Change to SafeSurf act. (Score:2, Interesting)
Then if a site has verified that it is child safe it should be given a rating accordingly. This of course woul change the litigation was handled since it would be impossible to litigate for accidently stumbling across adult content. This would have to be changed, because as we all know America DEMANDS litigation.
So we would change the proposal to allow people who were searching for adult content to sue if they stumbled across pages without tits that were not properly down rated from the default XXX rating.
This model seems to suit the internet audience much better than the safesurf act. It would require far less change to the existing structure as everyone knows most sites are porn sites and most people just use the internet to browse porn.
Re:Change to SafeSurf act. (Score:1)
Re:Change to SafeSurf act. (Score:1)
(Oh wait, that's bondage
Not a good test for high-quality audio (Score:3, Informative)
What would be interesting is if Vorbis can achieve these same results at lower bitrates; then I would agree it's better. If it can beat mp3 at 128kbps, then that's nice, but it's pretty irrelevant to me if it still sounds like crap (just not *as* crappy).
Re:Not a good test for high-quality audio (Score:1)
Re:Not a good test for high-quality audio (Score:2)
Which is why I mentioned rock music, because it's where LAME tends to be worst - with classical music even on the most insane VBR settings to ensure you get transparent encoding, you end up with around 160-180 kbps average.
Will Ogg Vorbis be accepted? (Score:2, Interesting)
"This function doesn't work in IE" Oh really...... (Score:1)
Ah, always so quick to bash IE... I guess its too dificult to right click on the page and look at the properties...
Re:"This function doesn't work in IE" Oh really... (Score:1)
scramjets (Score:4, Interesting)
Even the Passenger aircraft is a red herring, once you've boosted to Mach 8 why stay in the atmosphere?
Why not do a sub-orbital shot? be much quicker and easier.
Scramjets may get used for reconnaisance, but the only obvious application is super-fast cruise missiles, not bound by ballistic missile treaties.
Yes it's cool whizz-bang tech
But only in the same way an H-Bomb is.
Re:scramjets (Score:1, Interesting)
As for just going suborbital, remember just how hard it is to get that high in the first place; it takes large, heavy rockets, burning huge amounts of fuel. Really, the best way to do a suborbital (hell, even an orbital) flight would be to use a scramjet to get most of the way up, where the rocket is least efficient, then fire the rocket for the final boost.
Re:scramjets (Score:2)
Re:scramjets (Score:2)
plus have u seen how hot the skin of concorde gets at mach 2?
vacuum may well be a more forgiving environment.
Re:scramjets (Score:1)
It's worth noting that Scramjets have no real civilian use.
{..mercysnip..}
Yes it's cool whizz-bang tech
But only in the same way an H-Bomb is.
H-bombs have their civilian uses. If you use a lead instead of a U-238 liner, it becomes a clean nuke (the lead absorbs the neutron radiation -- the U-238 would have absorbed the neutron radiation also and would have amplified the blast power but at the expense of creating radioactive fission products) and can be used for civil engineering projects. The former USSR used one of these to construct a reservoir, IIRC.
-nb
Re:scramjets (Score:2)
but it's a good comparison, these unusual, esoteric non-military uses are about as common for each technology.
Scramjets - no civilian use? (Score:1)
How about satellite launches?
We already have missiles faster than scramjet speeds with long ranges. The cold war is over, live with it.
Re:Scramjets - no civilian use? (Score:2)
please explain to me the use for satellite launches of a complicated secondary stage that will only kick in when the thing hits mach 8 and then cuts out when it leaves the atmosphere?
Single Stage To Orbit is widely considered the future of space launch, not fiddly second stages requiring a third stage.
On the other hand the scramjet's weight advantage from getting it's O2 from the atmosphere is just dandy for a missile.
And while you're at it can you name me a single long distance weapon (non-ballistic), missile that runs over mach 8?
Non-Ballistic is important because you're very limited in what you can do with even conventional ballistic weapons without tripping off the early warning systems of a whole bunch of people who live on hair triggers, even today.
The Russian "sunburn" sea-skimming supersonic missiles are considered exceptional and they don't get close to that speed.
To summarise,
The scramjet is of almost no peaceful use, but will make a fine missile engine.
P.S. the world we live in now is a lot more unstable than the cold war ever was, turn on your TV.
Re:Scramjets - no civilian use? (Score:2)
One thing I'm not sure about is the real requirements for lighting a scramjet. One article said Mach 5, another Mach 1. The present Aussie design obviously won't light at Mach 1, or they wouldn't have used such an extreme flight profile. (For a test run at Mach 1 or 2, you attach the scramjet to a supersonic fighter jet. Instead, they shot a rocket into space, but not angled to go into orbit. When it fell back, the scramjet was to light for a few seconds, then cut off before getting into too thick air. I'd think even Mach 5 was reachable more easily...) Maybe once they manage to light the thing, the test data will help them design for lower-speed ignition.
This is needed because a Concorde with an added set of scramjet engines wouldn't be able to carry passengers, and the Concorde maxes out at Mach 1.something. If you have to get higher and faster than a Concorde before you can light the scramjet, it will be competitive only with rockets. If you can light it at Mach 1 and near sea-level, you could launch your scramjet from a catapult. A catapulted passenger scramjet would still need a set of low-speed engines so it could break off from a landing and go around, but they wouldn't have to be capable of extended operation or of getting the plane much above landing speed.
Re:Scramjets - no civilian use? (Score:2)
and you don't want to tell the chinese and russians about every missile plot you plan to implement because they will go and use that information for their own ends.
before missile defence there was nuclear deterence, and that still exists.
I'm not saying a scramjet can't be used for anything useful, just that there's a better way to do almost anything given the current requirement to get it moving at mach 8 before it even lights.
except long-range, hypersonic, non ballistic ordnance delivery.
Which oddly enough it could do rather well, and oddly enough the US military might have a desire for.
Which is almost certainly why it's getting funded. Not as a half-arsed second stage (requiring a third stage) orbital booster, or as a murderously fast people mover.
Re:Scramjets - no civilian use? (Score:2)
Trust me the booster rocket they're using on this thing is far, far, beyond any local capacity.
We were the 4th nation to put a payload into orbit but canned the space program in the 70's.
SafeSurf wants to play games? Let's... (Score:3, Interesting)
If SafeSurf somehow manages to get a politician's ear on this, I say that every web designer out there label ALL of their pages as obscene. This would basically nullify their software's effectiveness and have the side benefit of minimising suits against web designers under the premises of their proposal. At the very least, it'll put a gaping hole in the argument that their software should be required and isn't a form of censorship. I especially like how they are preaching voluntary labeling in their FAQ while proposing a compulsory system in that document. Truly classic...
What they seem to forget is that the existing ratings schemes (motion pictures, music, and video games) are largely voluntary and industry driven. The only penalties that are imposed on products in those markets are that some stores may not carry their product if they aren't labeled. What SafeSurf wants is a mandatory rating by law, which is just ridiculous, especially given the international nature of the net.
Safesurf confused on technology, Constitution. (Score:5, Insightful)
The Safesurf MAPS rant complains about them stealth-blocking websites that may contain important information, and people won't know they're being censored. But they've got the technology wrong: MAPS doesn't block websites - they provide tools that are normally used for blocking emails and furthermore, sites that implement MAPS tools properly normally provide bouncegrams telling people they block how and why their email was rejected, so they can fix their problems. The only way a company like Safesurf would be "censored" by a MAPS-using mailbox service would be if they sent out email to people - and since they'd find out they had a problem the first time they tried to send mail, they could put a notice on their website about it and tell people who want followup communications from them how to contact them.
Furthermore, Safesurf's web site [safesurf.com] violates Safesurf's proposed law creating (and mixing up) civil and criminal penalties and tort liability for mislabeling or failing to label web sites. Their original proposal was more aggressive than their current one, but it still doesn't require any actual harm to any actual child, as long as there are graphic images on the site (logos and decorations may not be harmful, but they're graphics, so we're covered there.) Plaintiffs can sue if the site doesn't provide appropriate ratings labels on material severe enough to be potentially harmful to children. Certainly, any proposal to throw people in jail for what they write on the net is pretty severe, and could cause harm to children who write things without labeling them if such a law were passed, and telling kids that people want to do that kind of harm to them just for what they write, even if there's no law passed, can also be pretty scary. www.safesurf.com's label says
"CONTENT='(PICS-1.1 "http://www.classify.org/safesurf/" l r (SS~~000 1))'"
which if you look it up on the explanatory web site [classify.org] doesn't have any indication of what the rating means. It does point to a site that tells you how to download a ".rat" file into your browser, and if you open up that file with a text editor instead of installing it, the file indicates something about "all ages", but doesn't indicate whether it's appropriate or inappropriate for all ages, so that a web browser could be set to do the appropriate thing with it, though it clearly implies that the really scary material complained about above should be appropriate for all ages....
"http://www.w3.org/TR/REC-PICS-services" [w3.org] has more PICS explanations.
Update - their web page indicates that MAPS has now unblocked them.
Golden Ears Test Invalid (Score:2)
Re:Golden Ears Test Invalid (Score:2, Informative)
Fine, from now on the Internet is "Adults only" (Score:2)
Maybe we should just stamp "Parental Guidance Recommended in permanent ink on each child's forehead when they're born -- include a bar code and removing it would probably be a violation of the DCMA.
Re:Fine, from now on the Internet is "Adults only" (Score:2, Funny)
Scramjet tests (Score:5, Informative)
1. The tests were a failure in that supersonic combustion did not happen- That is, the engine operated as a ramjet rather than a scramjet. The first thought is that this was caused by the failure of the rocket turning manoeuvre, so that the air was entering the engine at a large angle from the main axis of the engine. Since the engine used has been tested up to 4 degrees of deviation, the angle was probably more than 4 degrees. The rocket needs to be turned so that it is facing downwards with the engine on the front. It should be able to do this due to the atmospheric pressure, but it turns out that it doesn't happen quickly enough. The rocket is a spin-stabilised type (Where the whole rocket spins, rather than have a separate gyroscope), and this means that the turning manoeuvre is a difficult problem in 3-D geometry.
2. Generally speaking, nobody (That I've heard of) in the scientific world is seriously looking at scramjets for a passenger plane. Amongst other thing, rockets have an unacceptable failure rate for general civilian flight.
3. The main proposal that I've heard is for a lifter of payloads in the one tonne range to near earth orbits. For that, scramjets should be cheaper than rockets. For the large payloads, rockets are still cheaper. There is a slight advantage with scramjets in that since most of the acceleration is done horizontally in the atmosphere, that a polar orbit is no more difficult to achieve than one on the equatorial plane.
4. In addition, though I'm sure there is research into scramjets for missiles (Of course it's not published in the open literature), there's not really a burning need to build faster missiles, since nobody is building faster planes or faster houses. Note also, that due to the air inlets, that a scramjet missile is inherently less stealthy than a rocket missile.
5. Somebody mentioned some tests in Russia. If these are the CIAM/NASA tests, then the papers I've read show all three flights operating primarily, in subsonic combustion mode. As ramjets.
6. One good reason for working in this field is because it is a discipline which brings together a lot of things that are also of use elsewhere. A lot of work is done on understanding the basic science, which feeds back into other areas. It's not really a field with a purely practical thrust at present, due to a continuing problem of not really understanding the aerodynamics at these speeds.
7. Thus the experiment which just failed was never really meant to be a working engine, but more a simplified example to use as a calibration for wind tunnels, and computer codes.
8. They used the terrier-orion rockets because Astrotech offered two of them for free. They have to get two tests under their belt before they can be generally licensed for testing in Australia. C/F new launch port at Christmas Island.
That's about all I can think of for the moment. The URL for the Hyshot project is:
http://www.mech.uq.edu.au/hyper/hyshot/
A Not-so-modest Proposal For Child Protection (Score:3, Interesting)
Self regulation & safeweb (Score:4, Insightful)
This has always struck me as ideal. If you don't like how pornography is defined in your community, find a new one. There will always be a place for the puritans and the purient.
The Internet is great for that sort of thing. Whatever you want, you can find, from DADV to wwjd.org. Except that, lacking any boundaries at all, it's ridiculously easy to stumble into other communities, where you aren't a member, and aren't comfortable.
A great many people, (and I certainly don't think Slashdotters are immune) react to areas of the public Internet they don't like with anger, fear and loathing. I'm especially impressed by the irony of seeing these two sentiments in the same page (which is possibly the only justification for this Slashback):
Much as we might despise them, the MPAA solved a similar problem to this decades ago with a nifty little idea called "self-regulation." Granted the movie rating system isn't very descriptive (the US TV ratings are much more descriptive; isn't it great to see if any Adult Content:Nudity is on?)
Yes, Safeweb is going at this in an utterly braindead way. But, rating based web regulation would cope with much of the "For The Children" acts facing the US and the world at large. It seems to me that either a rating system (technically already existant) needs to be generally adopted, and browsers support it by default, even treating Unrated paged as if they were Drugs-Sex-Dismemberment-Adult-Themes, and allowing a simple browser level config. (I can see it now, as part of the Internet Setup Wizard: "How do you feel about pornography?"), or it should be included in the next batch of web standards, with the default of "horribly awful" being specified.
The pressure, then (at the cost of the collective headache of web designers everywhere) is to rate your site appropriately, because unrated sites will have a smaller audience (similar to the reasoning that leads to websites supporting IE first). But a lax rating will lead to complaints, and so on. Besides, imagine google searches by rating. It's in my interest to describe my site appropriately, since it'll bring the audience that wants my services, (At google picture: "rating:porn=MAX"). In general, I tend to see ratings not as censorship, but as a screen, because it takes away the "for the kids" argument of censors. You can say "well, it can be rated unsuitable" and demonstrate that parents can protect their children using ratings, rather than censorship.
Then they have to admit that they want to force everyone to live by their values, and that's just not in the realm of acceptability these days.
Re:I am harmful to minors (Score:2)
You really didn't need to put "(and many adults)" in parenthesis. Also, would *you* rather be placed on SafeSurf's banned list or would your name or IP address be placed on SafeSurf's banned list?
When the editors begin to show nice grammar and eloquent writing skills, then the masses will follow!!
Cheers!
Re:I am harmful to minors (Score:2)
Not getting any at home eh. Ahh well. Hope your birthday is cumming up :-)
Re:I am harmful to minors (Score:2)
Re:I am harmful to minors (Score:2)
From his contact page (slashdot.org/~roblimo) I started hanging out on Slashdot and writing for Andover.net in 1997. I am now Editor in Chief of OSDN (Slashdot's publisher) and working on a book, "Build Profits Online," for Financial Times Press.
And so, that kind of comment is quite surprising from him. I almost thought his account had been cracked, but it would have been a goat sex link if it had
Re:diff version (Score:2, Funny)
Oh, it only applies to graphic images. I guess my ASCII porn is okay, then
Morons.