Actually, I don't think that's correct. I believe that the volume defined by the event horizon is proportional to the mass of the black hole.
The formula then goes r^3= k((3m)/(4(pi)). That means that if you double your mass, you only multiply your radius by the cube root of two. (I can't find my calculator, so I can't tell you what that is.)
Good point about the tides, though. However, if the gravity wasn't that of a planetary mass, it still might be enough to set off earthquakes along fault lines. (It doesn't take much to set one off, in geological scales) I seem to recall a nasty earthquake in the 1900s, but I'm not a historian (I didn't even do well in history class.), so I can't be sure.
It's called Total Internal Reflection, and it's as perfect a mirroring surface as we know how to make.
Here's how it works. When you have two transparent materials bordering each other, you have a boundary where refraction can occur. Let's say that light is passing through material "A" on its way to the boundaryy with material "B". Out of necessity, let's say these two materials have different indeces of refraction.
An "index of refraction" is a ratio of the speed of light in that material vs. c (the speed of light in vacuum). The magic that this pertains to is a result of the wave nature of light. (Though Newton held that light was strictly of particle nature. Most everyone believed him until he was proved wrong. Can't remember the name of the experiment that proved Newton wrong. It was sarcastically suggested by a scientist who claimed Newton was right.)
When the light wave(I'll call it a wave now) hits the boundary, it has two options: Either be reflected back into the medum it came from, or be transmitted into the other medium at a different path. (It usually does both, but I don't know how that works, so I won't bother describing it.)
If the wave is transmitted, its new path depends on the ratio of the speed of light in the two substances. The slower the wave can move in substance B, the closer to the "normal" line the new path will be. The normal line is the line perpendicular to the substance.
However, the reverse is true. The faster the wave can move in material B, the further from the normal line the new path will be.
Refraction also depends on the angle at which the wave hits the boundary. The shallower the angle at which the wave strikes the boundary, the shallower the angle of light leaving the bouna dary will be. But wait a second. The effects add up. If you are moving from a material where the wave travels slowly into a material where the wave travels quickly, and your angle of insidence is shallow enough, you'll reach a point where the angle at which the wave leaves coinsides with the boundary between the two materials. Interestingly enough, waves can't travel on the boundary like that, so instead it gets reflected back into material A.
Some examples of this happening: Reflections inside of prisms (used most often in binoculars and cameras) and that funky reflection you see when you look up underwater.
Mirages are/similar/, but I don't completely understand how they work, so I'm not going to drive myself nuts trying to describe them. As far as I can, it's just a layer of hot air that acts as a fuzzy boundary and second material, and I think there's some calculus, too.
That sounds great. Is it shock resistant? IIRC, things only atoms thick tend to be extremely strong at that scale. I'd be more worried about gasses pocketing in the material.
Hmm.
Maybe, if the hydrogen carrier is a fluid, you won't have that problem. Especially if you use heat or electricity to get the hydrogen out of the sponge material.
Understood. Last time I read an article on hydrogen-powered vehicles, the hydrogen was stored in large rounded cylinders made of stainless steel, with inch-thick walls. I don't know much about guns, but the article said that no handgun could shoot through that. And stainless steel doesn't rust.:)
Add a flow-stop to the fuel line when the fuel flow rises above a certain point, and you're pretty darn safe, as far as I can tell. You're more in danger of being killed by being hit by the tank than from it exploding.
I've been under the impression that not everyone who reads/. is fascinated with science.
About eighty percent of the students at my high school think that hydrogen is dangerous by itself. About half the chem students at my school end the year with only one bit of knowledge: Methane-filled rubber baloons are fun.
(Then there was the one year where a few A-students made gunpowder, and recruited the class clown to grind about an eighth of an ounce of the stuff. At least the kid was wearing safety glasses.)
My point is that most people don't know any better. All you need is one uninformed semi-bright politician to cause a great deal of damage. Like I said, I was being picky.
When stored properly, liquid hydrogen is safer than the gasoline in my car. I would much prefer to dry a hydrogen-powered car than a gasoline-powered car.
Hybrid vehicles aren't that bad, either. You don't store massive quantities of hydrogen, you just take it from the gasoline's hydrocarbons when you need them.
I'm being picky here, but it'll help prevent fueling a misunderstanding. Liquid hydrogen is about as inert as helium when there's nothing for the hydrogen to react with.
Didn't you take at least an introductory Chemistry class in high school or college?
Imagine some of those bugs being set loose at Comdex, with demonstrations of all kinds of technology, some of which is IR.
Watch it crawl up to a demo of people using Palm Pilots to swap business cards, or maybe see it block the liquid-cooling unit exhaust for an overclocking demo.
If it doesn't get crushed in the parking lot, it'll home in on exhaust pipes.
And then there's the pizza booth with the heat lamps.
/me ponders a sequel to MT's story about the frog, this one about an electronic insect. Maybe people would find funny a video of something like that.
Why should you have to pour the millions of dollars in maintainance of a VLA sized unit to talk to a sat that costs a fraction of a percent of the ground station?
Because the ground station is reusable?
Regardless, if you can narrow your signal to a specific enough frequency, you could pick it up with an accurate amature ham set.
All this talk about more transmission power being better...drives me nuts. If people can limit their transmissions to extremely specific frequency ranges (or use timed broad-spectrum pulses)
His point was, and I quote linux developers need to give props where props is due.
And I too, agree. Why do we support the GPL being enforced, and then turn around dis a different open-source license? I'm ashamed.
I'm not one of the people whose decisions caused this (indeed, I'm just a Senior in High School), but any action by any member of a community reflects on the other members of that cummunity. This also applies to the open-source community.
In my opinion, this needs to be persued, to show that open-source developers stick to their guns when it comes to their licenses.
Maybe this quote will help a lot of the Free Software community open their eyes...
"Society can't be so lax as to not expect perfection, yet it cannot be so strict as to not accept mistakes."
A bit of rhetoric in there, but what do you expect? Look before you leap, though he who hesitates is lost. One way or the other, you're going to make mistakes. It's simply unavoidable.
So you, as a Free-Software zealot, (as am I, I think) are going to make every mistake made by someone bigger than you into a fatal mistake?
I'm sorry, but that's counterproductive, when you realize that any organism must grow to survive.
A consumer vs. producer fight is every bit as bad as unions. Look at the UAW. Do you realize that cars would be less than half their current prices if UAW members wouldn't demand massive raises and bonuses every three years?
Not to mention that you're holding an entire corporation liable for the mistakes of a few managers. Timothy McVeigh had the same idea when he held the entire US Government (and every person in Murrah Federal Building) accountable for the mistakes made by a few officers at Waco and Ruby Ridge.
And a more recent example...all of the racist actions against Arab-Americans and Muslims is from the same concept. Some American citizens are holding all Arabs and Muslims accountable for something that a minority extremist group did.
Do you agree with McVeigh and the racist minority of Americans, or are you a hypocrite?
That goes out to the rest of the Free Software community, too. I firmly beleive in open-source and free software, but unless you fall in the same catagory as these other extremists, you might want to take a closer, unbiased look at what you do.
USB 1 device (which keyboards, mice, scanners, etc., should always remain)
Not true...
USB 2 chipsets will soon be produced in far greater quantity than USB 1 chipsets, and therefor will be cheaper. There's no difference between the cost of printing a USB 2 chipset vs a USB 1 chipset, but you have to think about bulk ordering, etc.
I can see it now...every time they run low on USB 1 chipsets, they'd have to special-order a new batch of outdated ICs.
Would you rather pay extra for the special priviledge of having an antique chipset in your brand-spanking-new keyboard with builtin USB soundcard (and stereo support!)?
Remember, as antiques get older, they cost more to buy. Even in the IC manufacturing market.
This is a confidential license, seen only by Microsoft and computer vendors. You and I can't read the license because Microsoft classifies it as a "trade secret." The license specifies that any machine which includes a Microsoft operating system must not also offer a nonMicrosoft operating system as a boot option.
This section of the article doesn't conflict with itself, despite first impressions.
He's a journalist, and therefore has some experience in digging up information not readily available...
If he didn't actually see the license, but took someone else's word for it, then I wouldn't trust much of the article.
This is definately prime material for the Antitrust case, and it will probably show up in court if a baby-bill tries it.
Perhaps one of the punishments is that all contracts must be made public if so chosen by any signer?
This is fascinating...
It makes me wonder what would happen if a similar connection-reinforcement algorithm were applied to the Internet.
You could lay ground wires, use encrypted radio relay(HAM, anyone?), or satellite bouncing, all dependant on which would be the most cost-effective for the connection.
It wouldn't even have to be prohibitively expensive. All you need is the initial traffic tracing data, and you can start encouraging various ISPs to have direct links to each other, whether it be through a PRI or whatever. After the Internet speeds up noticably, it may even become the "in" thing to advertise that, for publicity. (We help make the Internet work!") (Yes, I know Cisco has a similar slogan.)
I can already give a good example where this would be useful: Packets between me and the local college currently travel via Chicago, and sometimes even California. Clearly, there is room for optimizations.
And people say the Internet is a living, breathing thing now.
Slashdot Mirror
Actually, I don't think that's correct. I believe that the volume defined by the event horizon is proportional to the mass of the black hole.
The formula then goes r^3= k((3m)/(4(pi)). That means that if you double your mass, you only multiply your radius by the cube root of two. (I can't find my calculator, so I can't tell you what that is.)
Good point about the tides, though. However, if the gravity wasn't that of a planetary mass, it still might be enough to set off earthquakes along fault lines. (It doesn't take much to set one off, in geological scales) I seem to recall a nasty earthquake in the 1900s, but I'm not a historian (I didn't even do well in history class.), so I can't be sure.
...it gave me a good idea of what quality stuff the movie was made of. (Hadn't seen it yet.)
I can see it now...Mission Impossible 2 just seems more and more real.
Now that my family owns rural property, we just burn our paper trash. Sensitive stuff is first in line.
Thinking of "the net," "The Net" was a pretty nasty movie.
(true story)
I run an ISP, and when my grandmother called me to voice her concerns after she watched that movie, well....
It's called Total Internal Reflection, and it's as perfect a mirroring surface as we know how to make.
/similar/, but I don't completely understand how they work, so I'm not going to drive myself nuts trying to describe them. As far as I can, it's just a layer of hot air that acts as a fuzzy boundary and second material, and I think there's some calculus, too.
Here's how it works. When you have two transparent materials bordering each other, you have a boundary where refraction can occur. Let's say that light is passing through material "A" on its way to the boundaryy with material "B". Out of necessity, let's say these two materials have different indeces of refraction.
An "index of refraction" is a ratio of the speed of light in that material vs. c (the speed of light in vacuum). The magic that this pertains to is a result of the wave nature of light. (Though Newton held that light was strictly of particle nature. Most everyone believed him until he was proved wrong. Can't remember the name of the experiment that proved Newton wrong. It was sarcastically suggested by a scientist who claimed Newton was right.)
When the light wave(I'll call it a wave now) hits the boundary, it has two options: Either be reflected back into the medum it came from, or be transmitted into the other medium at a different path. (It usually does both, but I don't know how that works, so I won't bother describing it.)
If the wave is transmitted, its new path depends on the ratio of the speed of light in the two substances. The slower the wave can move in substance B, the closer to the "normal" line the new path will be. The normal line is the line perpendicular to the substance.
However, the reverse is true. The faster the wave can move in material B, the further from the normal line the new path will be.
Refraction also depends on the angle at which the wave hits the boundary. The shallower the angle at which the wave strikes the boundary, the shallower the angle of light leaving the bouna dary will be. But wait a second. The effects add up. If you are moving from a material where the wave travels slowly into a material where the wave travels quickly, and your angle of insidence is shallow enough, you'll reach a point where the angle at which the wave leaves coinsides with the boundary between the two materials. Interestingly enough, waves can't travel on the boundary like that, so instead it gets reflected back into material A.
Some examples of this happening: Reflections inside of prisms (used most often in binoculars and cameras) and that funky reflection you see when you look up underwater.
Mirages are
Not to mention that if you remember back, the slots in the floor that held the Plexiglass were 6 inches wide...
That sounds great. Is it shock resistant? IIRC, things only atoms thick tend to be extremely strong at that scale. I'd be more worried about gasses pocketing in the material.
Hmm.
Maybe, if the hydrogen carrier is a fluid, you won't have that problem. Especially if you use heat or electricity to get the hydrogen out of the sponge material.
http://www.grnet.com/cyber/
or
telnet:grnet.com
or
(616) 454-4040 / (616) 454-7800
Family online entertainment since 1989. We're still the most populated system I'm aware of.
We started providing internet service back around 1993-94.
We use Galacticomm Worldgoup 3.0 for our main machine, and some 2.(something) licenses for some of our games.
Understood. Last time I read an article on hydrogen-powered vehicles, the hydrogen was stored in large rounded cylinders made of stainless steel, with inch-thick walls. I don't know much about guns, but the article said that no handgun could shoot through that. And stainless steel doesn't rust. :)
Add a flow-stop to the fuel line when the fuel flow rises above a certain point, and you're pretty darn safe, as far as I can tell. You're more in danger of being killed by being hit by the tank than from it exploding.
I've been under the impression that not everyone who reads /. is fascinated with science.
About eighty percent of the students at my high school think that hydrogen is dangerous by itself. About half the chem students at my school end the year with only one bit of knowledge: Methane-filled rubber baloons are fun.
(Then there was the one year where a few A-students made gunpowder, and recruited the class clown to grind about an eighth of an ounce of the stuff. At least the kid was wearing safety glasses.)
My point is that most people don't know any better. All you need is one uninformed semi-bright politician to cause a great deal of damage. Like I said, I was being picky.
When stored properly, liquid hydrogen is safer than the gasoline in my car. I would much prefer to dry a hydrogen-powered car than a gasoline-powered car.
Hybrid vehicles aren't that bad, either. You don't store massive quantities of hydrogen, you just take it from the gasoline's hydrocarbons when you need them.
Liquid hydrogen itself is quite explosive.
I'm being picky here, but it'll help prevent fueling a misunderstanding. Liquid hydrogen is about as inert as helium when there's nothing for the hydrogen to react with.
Didn't you take at least an introductory Chemistry class in high school or college?
Imagine some of those bugs being set loose at Comdex, with demonstrations of all kinds of technology, some of which is IR.
Watch it crawl up to a demo of people using Palm Pilots to swap business cards, or maybe see it block the liquid-cooling unit exhaust for an overclocking demo.
If it doesn't get crushed in the parking lot, it'll home in on exhaust pipes.
And then there's the pizza booth with the heat lamps.
/me ponders a sequel to MT's story about the frog, this one about an electronic insect. Maybe people would find funny a video of something like that.
Why should you have to pour the millions of dollars in maintainance of a VLA sized unit to talk to a sat that costs a fraction of a percent of the ground station?
Because the ground station is reusable?
Regardless, if you can narrow your signal to a specific enough frequency, you could pick it up with an accurate amature ham set.
All this talk about more transmission power being better...drives me nuts. If people can limit their transmissions to extremely specific frequency ranges (or use timed broad-spectrum pulses)
I''d pay thirty bucks to take something useless and render it otherwise.
Does that mean you'd pay thirty bucks to change a windows-infected hard drive into a bunch of paperclips?
Can I link a binary from GPL software to a library from BSD software?
Not combine the codebase, just have the two pieces work with each other...
Notice that he justified his "me too" stance.
His point was, and I quote linux developers need to give props where props is due.
And I too, agree. Why do we support the GPL being enforced, and then turn around dis a different open-source license? I'm ashamed.
I'm not one of the people whose decisions caused this (indeed, I'm just a Senior in High School), but any action by any member of a community reflects on the other members of that cummunity. This also applies to the open-source community.
In my opinion, this needs to be persued, to show that open-source developers stick to their guns when it comes to their licenses.
Maybe this quote will help a lot of the Free Software community open their eyes...
"Society can't be so lax as to not expect perfection, yet it cannot be so strict as to not accept mistakes."
A bit of rhetoric in there, but what do you expect? Look before you leap, though he who hesitates is lost. One way or the other, you're going to make mistakes. It's simply unavoidable.
So you, as a Free-Software zealot, (as am I, I think) are going to make every mistake made by someone bigger than you into a fatal mistake?
I'm sorry, but that's counterproductive, when you realize that any organism must grow to survive.
A consumer vs. producer fight is every bit as bad as unions. Look at the UAW. Do you realize that cars would be less than half their current prices if UAW members wouldn't demand massive raises and bonuses every three years?
Not to mention that you're holding an entire corporation liable for the mistakes of a few managers. Timothy McVeigh had the same idea when he held the entire US Government (and every person in Murrah Federal Building) accountable for the mistakes made by a few officers at Waco and Ruby Ridge.
And a more recent example...all of the racist actions against Arab-Americans and Muslims is from the same concept. Some American citizens are holding all Arabs and Muslims accountable for something that a minority extremist group did.
Do you agree with McVeigh and the racist minority of Americans, or are you a hypocrite?
That goes out to the rest of the Free Software community, too. I firmly beleive in open-source and free software, but unless you fall in the same catagory as these other extremists, you might want to take a closer, unbiased look at what you do.
USB 1 device (which keyboards, mice, scanners, etc., should always remain)
Not true...
USB 2 chipsets will soon be produced in far greater quantity than USB 1 chipsets, and therefor will be cheaper. There's no difference between the cost of printing a USB 2 chipset vs a USB 1 chipset, but you have to think about bulk ordering, etc.
I can see it now...every time they run low on USB 1 chipsets, they'd have to special-order a new batch of outdated ICs.
Would you rather pay extra for the special priviledge of having an antique chipset in your brand-spanking-new keyboard with builtin USB soundcard (and stereo support!)?
Remember, as antiques get older, they cost more to buy. Even in the IC manufacturing market.
This is a confidential license, seen only by Microsoft and computer vendors. You and I can't read the license because Microsoft classifies it as a "trade secret." The license specifies that any machine which includes a Microsoft operating system must not also offer a nonMicrosoft operating system as a boot option.
This section of the article doesn't conflict with itself, despite first impressions.
He's a journalist, and therefore has some experience in digging up information not readily available...
If he didn't actually see the license, but took someone else's word for it, then I wouldn't trust much of the article.
This is definately prime material for the Antitrust case, and it will probably show up in court if a baby-bill tries it.
Perhaps one of the punishments is that all contracts must be made public if so chosen by any signer?
This is fascinating...
It makes me wonder what would happen if a similar connection-reinforcement algorithm were applied to the Internet.
You could lay ground wires, use encrypted radio relay(HAM, anyone?), or satellite bouncing, all dependant on which would be the most cost-effective for the connection.
It wouldn't even have to be prohibitively expensive. All you need is the initial traffic tracing data, and you can start encouraging various ISPs to have direct links to each other, whether it be through a PRI or whatever. After the Internet speeds up noticably, it may even become the "in" thing to advertise that, for publicity. (We help make the Internet work!") (Yes, I know Cisco has a similar slogan.)
I can already give a good example where this would be useful: Packets between me and the local college currently travel via Chicago, and sometimes even California. Clearly, there is room for optimizations.
And people say the Internet is a living, breathing thing now.
s/in vivo/in TiVo/
Watch and record the process!
Bluetooth would allow many people to play online, instead of just in reality...
Something the pokemon and giga- pets never had.
(Darn thing too....If they had internet capability, I wouldn't have had to see so many of the obscene things in public.)
Quetzalcoatl" (you can figure it out)
Isn't that the lightning Gaurdian Force in Final Fantasy 8? What's he got to do with it?
It doesn't have to be deCSS...
It might be packaged with a Microsoft support letter PDF file complete with the capability to print the Utah address on the envelope...
And don't forget to bundle a document editor, Media Player, MP3 encoder, web browser and mail reader, all coded in ASP.NET for maximum efficiency!
Micro$oft: Empowering the Email Virus Generations!