"Radio of conventional wavelengths will pass through rain, smog, and clouds with little difficulty. Higher frequencies, however,have problems."
Not 100% correct. Sometimes rain and clouds mean something else. Its called a tempeture inversion. Basically there are times where warm air gets smashed inbetween cold ones. Radio waves around the HAM Radio 2 meter band (144Mhz) can go thousands of miles in this inversion. There are confirmed reports of talk between L.A. and Hawaii with these inversions. Normally the 2 meter band is line of sight and I have only reached 150 miles with the help of a repeter on my 5 watt handheld. Clouds (which make rain) can be a sign of this happening.
Yes, but what about the power saved during the time is remained off? That has to be accounted. Not only that but the Crusoe processor can change the speed and voltage of itself which can mean that when the laptop is just sitting there the processor could be drawing much less power than any other chip/HD/Screen. Remember, power consumption is a combined effort so every single part must change, no matter how little.
With exptreemly high magnification, how in heck do you keep the telescope still enough to take photos?
The slightest movement ought to mean millions of miles so thoes pesky little earthquakes should be a problem. Not to mention how you guys move the telescope accuratly.
"Frisbee said the engines are simple - although hydrogen peroxide at high concentrations is highly volatile and tricky to handle - and can produce an enormous amount of power. "
What I always wanted! A seat beside pure hydrogen peroxide flying at 4 times the speed of sound! So safe! So secure! So explosive! And the headlines! "Moscow residents got to see one of the largest fireworks display known to man. Film at 11."
I (for at least a year) could sign M$ agreements that are, in what they see, contracts that are binding. I cant wait to see their faces when they look at my birth certificate:).
You are right. In fact I do buy CDs and enjoy them. However, technology will advance. The speakers will bet better. So will amps, equilizers, lines, medium, and everything else. You just cant say that recordings have evolved, from the original records to vinyl to CDs and now to something else. Just wait 30 years and you WILL hear the difference between the then and now technologies. Nothing will ever be good enough. It's called evolution.
... dont even buy CDs! Records are the way to go and with that new laser technology out they wont get scrached. We must remember that CDs are not perfect. As for a better format, lets try 18 or 24 bit sound, something more like 88200Hz sampling, and 4 or 5 channels of encoding. But then you need a DVD to store the songs. This will NEVER end.
Microcontrolers are the best things on earth. Unfortunally, serial ports are not. With the speed of a serial port the power of the darn thing is quite limited. I would try something else out. How about using the cheep I2C chips out there and monitor the temp of the entire house? Maybe it can track the pressures on the carpet to report where there is the most traffic. The processor can then send the data to the computer or other device it is attached to then put it on the net via DSL or T1 or something. It would be more efficient.
Like another poster said, it's kinda hard to put IDE on 18 (more like 13 for the 16F86) pins. The stereo would me nice if only I can overclock the darn thing from 10Mhz to 166Mhz. Only requirement: a heatsink the size of New York and a large fan.
That's not not what I ment. If M$ was to release their Office to MacOS X, you know for dang sure they wont compile it for Linux (you wouldn't feed your head to a lion, no would you?). When C/C++/Fortran/Pascal/Wippobingbong is compiled, it's turned into instructions that the processor can use and thus if the processor is different, it wont understand the code.
The Mac uses a Motorola processor, which is not compatible with the x86. Sure, one can try to get the Office apps to work on *NIXs like Linux PPC but it will never happen to the Intel based *NIXs.
... don't you think that this is similar to DIVIX? Instead of geting a physical CD a computer downloads a movie and the person can purchase a single view or own license. The only difference is that the movie on DIVIX has a bigger screen, better sound system support, no expensive computer, ect. Would I invest my money in SightSound? No way.
Yes, these regulations are true for voice transmissions. However, since the signal is digital, music/data/anything else CAN be transmitted over the air digitally as long as it is not commercial data. As far as the rules say, it's ones and zeros over the radio in a publicly documented format (AX.25 in this case).
We can debate the morality of proprietary extensions until we're blue in the face, but it DOES NOT break interoperability, because the standard explicitly states that any Kerberos app may ignore the PAC field since it is optional.
Yes but if a Kerberos app rejects a packet or similar due to missing information in the PAC field it is breaking interoperability. Linux and others can't log on to a Win2k system due to this.
As it goes for Ham radio satellites, they get about 14-15 minutes of passtime to communicate with things like AX.25 (packet radio) and FM transmissions on satellites like AO-27 and others. To ping all the ports on overpassing satellites with 1200-9600 baud modems is kinda hard to do. Good luck on taking it down.
But I thought that it was made before that date and it even had plans. Of course this was Yet Another Simple Computer built by some collage person that happens to be richer than many people right now.
... we had a room called "The Bill Gates Room"! Unbelieveable! Linux would be great (I got a secrete UMDOS-Linux computer going) but I don't think that the administators are educated enough let Linux be used in high school. As for hardware we have decent computers we have PII-500mhz and G3 macs. Not that bad. As for compter classes, we have several MS based ones, including our computer science class. Maybe it's a good thing that MS donated a bunch of hardware and software, then again it never worked and we got a grant for the 500's and G3's.
Slashdot Mirror
"Radio of conventional wavelengths will pass through rain, smog, and clouds with little difficulty. Higher frequencies, however,have problems."
Not 100% correct. Sometimes rain and clouds mean something else. Its called a tempeture inversion. Basically there are times where warm air gets smashed inbetween cold ones. Radio waves around the HAM Radio 2 meter band (144Mhz) can go thousands of miles in this inversion. There are confirmed reports of talk between L.A. and Hawaii with these inversions. Normally the 2 meter band is line of sight and I have only reached 150 miles with the help of a repeter on my 5 watt handheld. Clouds (which make rain) can be a sign of this happening.
Yes, but what about the power saved during the time is remained off? That has to be accounted. Not only that but the Crusoe processor can change the speed and voltage of itself which can mean that when the laptop is just sitting there the processor could be drawing much less power than any other chip/HD/Screen. Remember, power consumption is a combined effort so every single part must change, no matter how little.
With exptreemly high magnification, how in heck do you keep the telescope still enough to take photos?
The slightest movement ought to mean millions of miles so thoes pesky little earthquakes should be a problem. Not to mention how you guys move the telescope accuratly.
"Frisbee said the engines are simple - although hydrogen peroxide at high concentrations is highly volatile and tricky to handle - and can produce an enormous amount of power. "
What I always wanted! A seat beside pure hydrogen peroxide flying at 4 times the speed of sound! So safe! So secure! So explosive! And the headlines! "Moscow residents got to see one of the largest fireworks display known to man. Film at 11."
I (for at least a year) could sign M$ agreements that are, in what they see, contracts that are binding. I cant wait to see their faces when they look at my birth certificate :).
You are right. In fact I do buy CDs and enjoy them. However, technology will advance. The speakers will bet better. So will amps, equilizers, lines, medium, and everything else. You just cant say that recordings have evolved, from the original records to vinyl to CDs and now to something else. Just wait 30 years and you WILL hear the difference between the then and now technologies. Nothing will ever be good enough. It's called evolution.
... dont even buy CDs! Records are the way to go and with that new laser technology out they wont get scrached. We must remember that CDs are not perfect. As for a better format, lets try 18 or 24 bit sound, something more like 88200Hz sampling, and 4 or 5 channels of encoding. But then you need a DVD to store the songs. This will NEVER end.
Microcontrolers are the best things on earth. Unfortunally, serial ports are not. With the speed of a serial port the power of the darn thing is quite limited. I would try something else out. How about using the cheep I2C chips out there and monitor the temp of the entire house? Maybe it can track the pressures on the carpet to report where there is the most traffic. The processor can then send the data to the computer or other device it is attached to then put it on the net via DSL or T1 or something. It would be more efficient.
Like another poster said, it's kinda hard to put IDE on 18 (more like 13 for the 16F86) pins. The stereo would me nice if only I can overclock the darn thing from 10Mhz to 166Mhz. Only requirement: a heatsink the size of New York and a large fan.
That's not not what I ment. If M$ was to release their Office to MacOS X, you know for dang sure they wont compile it for Linux (you wouldn't feed your head to a lion, no would you?). When C/C++/Fortran/Pascal/Wippobingbong is compiled, it's turned into instructions that the processor can use and thus if the processor is different, it wont understand the code.
The Mac uses a Motorola processor, which is not compatible with the x86. Sure, one can try to get the Office apps to work on *NIXs like Linux PPC but it will never happen to the Intel based *NIXs.
... don't you think that this is similar to DIVIX? Instead of geting a physical CD a computer downloads a movie and the person can purchase a single view or own license. The only difference is that the movie on DIVIX has a bigger screen, better sound system support, no expensive computer, ect. Would I invest my money in SightSound? No way.
Yes, these regulations are true for voice transmissions. However, since the signal is digital, music/data/anything else CAN be transmitted over the air digitally as long as it is not commercial data. As far as the rules say, it's ones and zeros over the radio in a publicly documented format (AX.25 in this case).
Tristan
Call sign: KF6MUY
We can debate the morality of proprietary extensions until we're blue in the face, but it DOES NOT break interoperability, because the standard explicitly states that any Kerberos app may ignore the PAC field since it is optional.
Yes but if a Kerberos app rejects a packet or similar due to missing information in the PAC field it is breaking interoperability. Linux and others can't log on to a Win2k system due to this.
As it goes for Ham radio satellites, they get about 14-15 minutes of passtime to communicate with things like AX.25 (packet radio) and FM transmissions on satellites like AO-27 and others. To ping all the ports on overpassing satellites with 1200-9600 baud modems is kinda hard to do. Good luck on taking it down.
But I thought that it was made before that date and it even had plans. Of course this was Yet Another Simple Computer built by some collage person that happens to be richer than many people right now.
... we had a room called "The Bill Gates Room"! Unbelieveable! Linux would be great (I got a secrete UMDOS-Linux computer going) but I don't think that the administators are educated enough let Linux be used in high school. As for hardware we have decent computers we have PII-500mhz and G3 macs. Not that bad. As for compter classes, we have several MS based ones, including our computer science class. Maybe it's a good thing that MS donated a bunch of hardware and software, then again it never worked and we got a grant for the 500's and G3's.