Remember all the stories about Peru and possible law mandating open source?
The debate and then MS coming in with $550,000 in software to try and make sure a certain law doesn't happen? I wonder how MS is going to try and get this changed. It's going to cost a lot more money to buy off the UK. Place you bets...will it be:
FUD
'Donations' of software
Targeting competing OSS projects via patents
Lobbying (Note that for a period of time MS' lobbying power, in the US, was second only to that of Enron. Actually, accoring to this they made it to #1)
Does anybody know if they are any patents that might interfere with this (like that damn patent on mp3 encoding)? All it would take is one good patent for MS to shut this down. I guess we'll just have to wait for the legal battle to begin. sigh. I wish I lived in a country that allowed intellectual freedom. On the brighter side of things, at least I don't live in a country that allowed someone to patent the wheel. Although, we did let IBM get a patent on measuring bra cup size via direct measurement.:( I wonder which is worse.
This could be very useful for creating optically isolated bi-directional interfaces. Right now, when designing a circuit you would use one optoisolator per signal and it would be one direction only. This also could be really cool for fiber optics. Instead of having to run one fiber for tx and one for rx you could just run one fiber and switch the led between a tranmitter and a reciever. Do OLED laser diodes exist?
Interesting. I never have brought my scope out and measured the voltage that my amp(Boss REV-1035starts clipping at. Maybe I'll go do that at lunch today. It's rated 250 RMS @ 4 ohms into two channels @ 0.01% THD, but I think that spec is a little generous. It is possible given the amp's 40A fuse but it would need to be 87% efficient, which I doubt. Anybody else have any real rms vs. manufacturer rated RMS measurements they've done?
Liar! Even if you really do own a few car audio shops, you obviously sell crap, but I doubt you even own a single decent car amplifier.
There are car amps that put out 1000watt RMS continous power. Go to a car audio competition. Or just buy a decent amp and hook up a current meter to it. If something draws even 15A at 12V it needs more power than 40 watts (and I'm talking about amplfifiers, not head units or wanna-be (walmart) amplifiers.
You know nothing about amplifiers. Any car audio amplifier has an internal power supply section that raises the 12V to some higher voltage, allowing it to put out more power than you claim. Now about caps... An alternator does not put out perfect DC. Go read a little bit about electronmagnetic induction. You obviusly know less than I did when I was in 5th grade. Maybe some kids buy caps, who don't need them but that doesn't mean they're worthless. Allow me to demonstrate:
I have an amp right now that requires about 30A continuous power. Assuming this amp was 66.7% efficient that current draw is actually (assuming I was using it to produce a pure sinewave): 30 + 20 sin (wt) Amps where w is the angular frequency and t is time (And ignoring the amplifier's internal power supply caps).
That means that at at some times, that amplifier is drawing 50A. Let's assume I had a perfect voltage source in the front of my car. I order to get the same level of power supply ripple (measured at the +12 terminal on the amplifier) I could either install wiring suited for 30A and a capactior, or install wiring suited for 50A. Keep in mind that this analysis does not include the batteies internal resistance, the beneficial HF noise filtering properties of a capacitor, of the filtering of power supply ripple from the alternator.
I have a.1F cap in my car so the lights don't dim when the bass hits. How is it rubbish when it will weld a nail to a piece of metal? (Very fun, I suggest you try it sometime.)
Maybe it won't work for his application, but that doesn't mean it won't work in mine.
A chemical battery just doesn't respond fast enough. I suppose you could buy more batteries(maybe) or a special purpose battery but a cap is a valid solution, often a good one.
Have you ever played with a car amp that needs 1000 watts?
I agree. This should be turned off by default. It annoys the crap out of me, and now that I know
I can be turned off, I will do so.
Maybe they should just add a counter.
If it steals the focus away from you 25 times and
haven't used any of the selections that pop-up once,
it should autmatically turn itself off (unless you actually manually enabled it). Hmmmm...maybe I'll write the code to do that...
If it got included in the release, it would save a lot of people a little bit of annoyance. Anyone else think this would be a good idea?
This guy claims to have been using linux since 1998 and he can't handle editing a text file? I don't even see why he needed to mess with lilo at all to get a cdburner to work, but hey, I use grub.
I've been wanting to switch to linux for quite a while. About 6 months ago I finally did the switch. Linux finally has a good office suite, and all the hardware support I need. I'd been toying with linux for the last few years, and it just didn't have all the apps and hw support I want.
Today, as I sit here and write this on a win2k machine at work, I miss all my linux apps. I had to go download mozilla, openoffice, cygwin, and emacs, so I could get some work done. Win2k frustrates me though. It's like having one arm tied behind my back. I have to reboot every time I change network setting (you still can't change DNS without rebooting). I have to waste time reconfiguring apps so I don't have to play hide-and-go-seek with less frequently used menu options. I can't customize Outlook's spam filter. I wrote my own, but a "you have mail" box still pops up every time I get spam, even if the mail gets moved to the trash.
The most important thing I learned when switching to linux is that it is different. If something doesn't work exactly the same way it does on windows (Ex: cut&paste) people act like there's something wrong. To get the most out of linux you must admit the it is not windows and be prepared to re-learn some things. Don't act like it's broken because it isn't windows. You do realize you weren't born knowing how to use MS Windows? You had to learn somehow. If you're not willing to learn, you won't be good with ANY operating system, you may be able to use it, but just barely.
My cdburner works fine:P as well as my tv-output, tv-input, webcam, psion docking, 3d acceleration, and sound.
Linux is ready for the desktop. It is as easy to use as windows. Note that I said use, not configure. Getting it configured right still requires someone decent computer skills. But people should remember that most users buy their computers with the os preinstalled, or it is done by a tech. They average joe may not be able to configure a linux pc like I have, but the could buy one preconfigured and use it. I think linux is ready to compete. It's biggest selling point will be trust. I switched because I knew DRM was coming down the pipeline. I don't trust microsoft, to control my access to MY data and more than I'd trust them with the keys to my house and expect them to have an employee waiting to let me in whenever I come home. I value that data on my PC more highly that just about any feature MS could come up with.
The only real issuses that this guy brings up are configuration issues. Everything else is just bitching that things don't work exactly the same as they do on windows or that X isn't perfect. Win2k mangles my background on a daily basis, is that perfect? Linux and X w/ KDE use less ram than win2K or XP how is this bloated? 3d support should be optional. Modular software design is the way to go. You shouldn't need 3d acceleration to run notepad and you don't. Did I miss anything else he said?
It is stored in an analog format.
All digital signal are analog!
All the wires in your pc are carrying
voltages that represent zeros and ones.
We set a voltagecutoff for a zero and a voltage cutoff for a one and any voltage outside those is considered undefined. That signal on a taoe looses its strength over time whether used or not and eventually will start missing those cutoffs and data will be lost. When this becomes noticable will probably take much longer than on an ordinary analog-encoded tape, but it does happen.
Just remeber that the concept of digital circuitsw is just a certain way of handling analog signals.
Everyone seems to be commenting that, oh you're just moving the heat plus 20 % somewhere else, so this doesn't really mean anything.
Bullshit, of course heat cannot be simply destroyed, but does that mean the radiator in your car in useless.
This device obviously isn't going to subtract from the total amount of heat inside a closed box, but neither does my cpu fan. Does that mean I should take if off my cpu and watch my athlon fry itself is 8 seconds?
The whole point of cooling is to move heat from one place to another. I've they've found a good way to do this it is important. they sound overly optimistic about the efficiency of their device, but realize that a device that could do what they say this on does would be very useful.
Please think in terms of the rate of heat transfer between a cpu & heatsink instead of the total amount of heat inside the case. Your cpu only care about how hot it is, and not how hot the heatsink attached to this device would get.
At some point you hit a limit with normal cooling. Once you have a connetion to the cpu with the best thermal conductivity, and a heat sink big enough to stay very close to room temperature, you aren't going to be able to get the cpu any cooler without putting something colder than room temperature on the cpu. this will mean more heat is sucked out of the cpu, so you'll beed a bigger heatsink to handle that (and any heat generated by the device) but with that bigger heatsink, you CAN make the cpu cooler that it would have been without such a device.
One time pad encryption is actually not that great. You have to send an un-interceptabile message the same size as the message to be encrypted. Not only that, but the one time pad has to be grenerated by a perfect random number genereator.
If I have a perfectly secure communications channel that can handle one time pads for my messages, it could also just handle the messages themselves instead. Using one time pad with anything less that a perfect random number generator would actually have lower security of such a system.
The really amazing stuff about cryptography is public/private key encryption and keys that can be reused.
I recently bought a Diamond Mako for $80, from Staples and am very pleased with it. Some people reading this may be interested to know that you can get a refurbished mako for $80 a sparco.com Pretty much an unbeatable price compared to a $400 zarus or the yopy. Hopefully there will soon be a linux distribution for the revo as well.
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and then MS coming in with $550,000 in software to try and make sure a certain law doesn't happen?
I wonder how MS is going to try and get this changed. It's going to cost a lot more money to buy off the UK.
Place you bets...will it be:
- FUD
- 'Donations' of software
- Targeting competing OSS projects via patents
- Lobbying (Note that for a period of time MS' lobbying power, in the US, was second only to that of Enron. Actually, accoring to this they made it to #1)
- "Embrace and Extend"
- Criminal uses of their monopoly status
Have I left anything out?Does anybody know if they are any patents that might interfere with this (like that damn patent on mp3 encoding)? :(
All it would take is one good patent for MS to shut this down.
I guess we'll just have to wait for the legal battle to begin. sigh. I wish I lived in a country that allowed intellectual freedom.
On the brighter side of things, at least I don't live in a country that allowed someone to patent the wheel. Although, we did let IBM get a patent on measuring bra cup size via direct measurement.
I wonder which is worse.
This could be very useful for creating optically isolated bi-directional interfaces. Right now, when designing a circuit you would use one optoisolator per signal and it would be one direction only.
This also could be really cool for fiber optics. Instead of having to run one fiber for tx and one for rx you could just run one fiber and switch the led between a tranmitter and a reciever. Do OLED laser diodes exist?
Interesting.
I never have brought my scope out and measured the voltage that my amp(Boss REV-1035starts clipping at.
Maybe I'll go do that at lunch today.
It's rated 250 RMS @ 4 ohms into two channels @ 0.01% THD, but I think that spec is a little generous. It is possible given the amp's 40A fuse but it would need to be 87% efficient, which I doubt.
Anybody else have any real rms vs. manufacturer rated RMS measurements they've done?
You draw more current @ 12V. Duh. It's okay not to understand EE. Just don't act like you do.
Liar!
Even if you really do own a few car audio shops, you obviously sell crap, but I doubt you even own a single decent car amplifier. There are car amps that put out 1000watt RMS continous power. Go to a car audio competition. Or just buy a decent amp and hook up a current meter to it. If something draws even 15A at 12V it needs more power than 40 watts (and I'm talking about amplfifiers, not head units or wanna-be (walmart) amplifiers. You know nothing about amplifiers.
Any car audio amplifier has an internal power supply section that raises the 12V to some higher voltage, allowing it to put out more power than you claim.
Now about caps... An alternator does not put out perfect DC. Go read a little bit about electronmagnetic induction. You obviusly know less than I did when I was in 5th grade.
Maybe some kids buy caps, who don't need them but that doesn't mean they're worthless. Allow me to demonstrate: I have an amp right now that requires about 30A continuous power. Assuming this amp was 66.7% efficient that current draw is actually (assuming I was using it to produce a pure sinewave):
30 + 20 sin (wt) Amps
where w is the angular frequency and t is time (And ignoring the amplifier's internal power supply caps). That means that at at some times, that amplifier is drawing 50A. Let's assume I had a perfect voltage source in the front of my car.
I order to get the same level of power supply ripple (measured at the +12 terminal on the amplifier) I could either install wiring suited for 30A and a capactior, or install wiring suited for 50A.
Keep in mind that this analysis does not include the batteies internal resistance, the beneficial HF noise filtering properties of a capacitor, of the filtering of power supply ripple from the alternator.
I have a .1F cap in my car so the lights don't dim when the bass hits.
How is it rubbish when it will weld a nail to a piece of metal? (Very fun, I suggest you try it sometime.) Maybe it won't work for his application, but that doesn't mean it won't work in mine. A chemical battery just doesn't respond fast enough. I suppose you could buy more batteries(maybe) or a special purpose battery but a cap is a valid solution, often a good one. Have you ever played with a car amp that needs 1000 watts?
I agree.
This should be turned off by default.
It annoys the crap out of me, and now that I know I can be turned off, I will do so. Maybe they should just add a counter. If it steals the focus away from you 25 times and haven't used any of the selections that pop-up once, it should autmatically turn itself off (unless you actually manually enabled it).
Hmmmm...maybe I'll write the code to do that... If it got included in the release, it would save a lot of people a little bit of annoyance.
Anyone else think this would be a good idea?
This guy claims to have been using linux since 1998 and he can't handle editing a text file? I don't even see why he needed to mess with lilo at all to get a cdburner to work, but hey, I use grub.
:P
I've been wanting to switch to linux for quite a while. About 6 months ago I finally did the switch.
Linux finally has a good office suite, and all the hardware support I need.
I'd been toying with linux for the last few years, and it just didn't have all the apps and hw support I want.
Today, as I sit here and write this on a win2k machine at work, I miss all my linux apps.
I had to go download mozilla, openoffice, cygwin, and emacs, so I could get some work done.
Win2k frustrates me though. It's like having one arm tied behind my back. I have to reboot every time I change network setting (you still can't change DNS without rebooting). I have to waste time reconfiguring apps so I don't have to play hide-and-go-seek with less frequently used menu options. I can't customize Outlook's spam filter. I wrote my own, but a "you have mail" box still pops up every time I get spam, even if the mail gets moved to the trash.
The most important thing I learned when switching to linux is that it is different. If something doesn't work exactly the same way it does on windows (Ex: cut&paste) people act like there's something wrong. To get the most out of linux you must admit the it is not windows and be prepared to re-learn some things. Don't act like it's broken because it isn't windows. You do realize you weren't born knowing how to use MS Windows? You had to learn somehow. If you're not willing to learn, you won't be good with ANY operating system, you may be able to use it, but just barely.
My cdburner works fine
as well as my tv-output, tv-input, webcam, psion docking, 3d acceleration, and sound.
Linux is ready for the desktop.
It is as easy to use as windows.
Note that I said use, not configure.
Getting it configured right still requires someone decent computer skills. But people should remember that most users buy their computers with the os preinstalled, or it is done by a tech. They average joe may not be able to configure a linux pc like I have, but the could buy one preconfigured and use it. I think linux is ready to compete.
It's biggest selling point will be trust.
I switched because I knew DRM was coming down the pipeline. I don't trust microsoft, to control my access to MY data and more than I'd trust them with the keys to my house and expect them to have an employee waiting to let me in whenever I come home.
I value that data on my PC more highly that just about any feature MS could come up with.
The only real issuses that this guy brings up are configuration issues. Everything else is just bitching that things don't work exactly the same as they do on windows or that X isn't perfect. Win2k mangles my background on a daily basis, is that perfect? Linux and X w/ KDE use less ram than win2K or XP how is this bloated? 3d support should be optional. Modular software design is the way to go. You shouldn't need 3d acceleration to run notepad and you don't. Did I miss anything else he said?
It is stored in an analog format. All digital signal are analog! All the wires in your pc are carrying voltages that represent zeros and ones. We set a voltagecutoff for a zero and a voltage cutoff for a one and any voltage outside those is considered undefined. That signal on a taoe looses its strength over time whether used or not and eventually will start missing those cutoffs and data will be lost. When this becomes noticable will probably take much longer than on an ordinary analog-encoded tape, but it does happen. Just remeber that the concept of digital circuitsw is just a certain way of handling analog signals.
Everyone seems to be commenting that, oh you're just moving the heat plus 20 % somewhere else, so this doesn't really mean anything. Bullshit, of course heat cannot be simply destroyed, but does that mean the radiator in your car in useless.
This device obviously isn't going to subtract from the total amount of heat inside a closed box, but neither does my cpu fan. Does that mean I should take if off my cpu and watch my athlon fry itself is 8 seconds?
The whole point of cooling is to move heat from one place to another. I've they've found a good way to do this it is important. they sound overly optimistic about the efficiency of their device, but realize that a device that could do what they say this on does would be very useful.
Please think in terms of the rate of heat transfer between a cpu & heatsink instead of the total amount of heat inside the case. Your cpu only care about how hot it is, and not how hot the heatsink attached to this device would get. At some point you hit a limit with normal cooling. Once you have a connetion to the cpu with the best thermal conductivity, and a heat sink big enough to stay very close to room temperature, you aren't going to be able to get the cpu any cooler without putting something colder than room temperature on the cpu. this will mean more heat is sucked out of the cpu, so you'll beed a bigger heatsink to handle that (and any heat generated by the device) but with that bigger heatsink, you CAN make the cpu cooler that it would have been without such a device.
I want one. And yes, I would use it to cool beer.
One time pad encryption is actually not that great.
You have to send an un-interceptabile message the same size as the message to be encrypted.
Not only that, but the one time pad has to be grenerated by a perfect random number genereator.
If I have a perfectly secure communications channel that can handle one time pads for my messages, it could also just handle the messages themselves instead. Using one time pad with anything less that a perfect random number generator would actually have lower security of such a system.
The really amazing stuff about cryptography is public/private key encryption and keys that can be reused.
I recently bought a Diamond Mako for $80, from Staples and am very pleased with it. Some people reading this may be interested to know that you can get a refurbished mako for $80 a sparco.com Pretty much an unbeatable price compared to a $400 zarus or the yopy. Hopefully there will soon be a linux distribution for the revo as well.