Go to microchip.com, and search for "PIC18F4550." They'll even give you free samples and code to make it work. You can build the programming cable yourself, or buy one. Google for "PIC programmer."
Unlikely. The wire would need to be huge in order to get any kind of transmission efficiency. There's a reason power transmission systems were set up as AC in the first place. Maybe high voltage DC would work, but you'd still need converters.
Each card, however, probably contains two 2GB or four 1GB flash chips rather than 1 4GB flash chip. I would imagine that 8GB cards would be possible with 4GB on one chip.
There are all kinds of things you can make from a disposable camera flash. You can make a strobe light by using a diac, neon lamps, or a triac and an external circuit connected across the shutter contacts (use a D cell instead of the AA so it charges faster) or make a paper clip shooter by connecting a coil in series with the flash lamp. Wrap the coil around a tube of some sort and put a paper clip just behind the coil. To fire it you will also need a *WELL INSULATED* push button wired to the shutter contacts. When the button is pushed, the flash lamp will begin to conduct and allow current to flow through the coil.
I saw a similar device in an electronics class that was made from six disposable camera flash units wired in parallel, and connected to a flat coil on top of a clear box. There was a metal ring and a ping-pong ball on top of the coil, and when the cameras were discharged through the coil it was able to shoot the ping-pong ball about 50 feet vertically. (It used an SCR instead of the flash lamp as the switch.) Also you can get the cameras for free from some photo developing places and they only need 1 "AA" battery to work.
The only problem is obviously the high voltage - if you are going to have 12 year olds messing with these things you need to make sure the cameras are insulated well before you let anyone turn on the power, and that they are discharged before anyone starts wiring anything up.
Speakers are, and always will be, analog, so even if it isn't backwards compatible, and the player only has digital outputs, you *still* will be able to record it. You just need to open up whatever box has the speaker in it and tap off the output of the amplifier. Even if that's impossible (sealed enclosure?), you could always just put a microphone in front of the speakers and record from that. Basically there is no practical way to plug the "analog hole." If you can hear it, you can record it.
that is more or less what portage does in gentoo... the ebuilds just contain information on how to install any given package from the sources, and dependency info for that package.
Additionally, a "device capable of decrypting" would include the device which was intended to receive the signal in the first place! Even if it's not modified, it's got to decrypt the signal somewhere in order to do anything useful with it.
Well, if it's a mass-produced CD, with no serial numbers, and it's not "phoning home" anywhere, then there's no reason why an exact duplicate of the CD couldn't be produced. Maybe not with an ordinary CD-R drive, but certainly with mass CD production equipment.
Actually Macrovision messes with the automatic gain control circuits in VCRs. These circuits are not present in old VCRs, or in most 8mm VCRs, so these VCRs will record the signal. But if you try and copy the copied tape, with a new VCR, the macrovision is still there and it won't work.
I doubt that the DVD CCA, which licenses CSS, would allow it. See the DVD FAQ at www.dvddemystified.com. It indicates that a CSS license costs $15,000 per year and is highly restrictive for exactly this reason.
you can add applets (system monitor, gnome-pilot, volume control, clock, etc...), as well as quick-launch buttons to the top toolbar. Besides, it doesn't really take up much space, and you can always just delete it and move the menus to the bottom bar.
Isn't the HOSTS file just a list of hostnames/IP addresses? Wouldn't any javascript in that file be worthless since it wouldn't be interpreted as Javascript? If anything in there can possibly be interpreted as javascript, there are some serious bugs in Windows, or in Internet Explorer.
Re:Is the eMac the only one?
on
Upgrade Your eMac
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· Score: 4, Informative
Well the author of this article did not actually *replace* the CPU, he only *overclocked* it from 800 MHz to 1.33 GHz by changing some traces on the motherboard. It should work on any motherboard that supports more than one type of CPU, without removing the actual chip. This also assumes, however, that the existing chip will run at the increased speed without additional cooling, which may be difficult in a laptop.
is only 2-3 gigabytes... the ones in ipods are at least 10, right? it sounds like they just reduced the size of the platters, and they didn't significantly increase the storage density.
A radio has a local oscillator, operating at 10.7 MHz above or below the tuned frequency for FM and 455 kHz (?) above below the tuned frequency for AM. When you mix two frequencies, the two original frequencies, and their sum and difference result. The radio mixes the local oscillator signal with the incoming signal to get 10.7 MHz for FM and 455 kHz for AM. The rest of the circuits in the radio are tuned to that frequency. Actually older radios didn't do this, they just had variable tuning circuits in every stage, necessitating multi-gang variable capacitors and such.
I think this system operates by sensing the (frequency - {10.7 MHz,455kHz} ) signals emitted by nearby radios.
Well, 1 gig per second / 54 megs per access point * 1 access point per 802.11 card equals about 19 cards, not exactly possible in one laptop. And that's if you're using 'g'. For 'b', you'd need almost 100 cards...
ummm i think if it skips or crashes that's either a *very* defective burner, or a software problem (that would mean the player doesn't understand the file structure on the disk.) If it just doesn't play, the media may be incompatible with a specific player.
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Go to microchip.com, and search for "PIC18F4550." They'll even give you free samples and code to make it work. You can build the programming cable yourself, or buy one. Google for "PIC programmer."
Unlikely. The wire would need to be huge in order to get any kind of transmission efficiency. There's a reason power transmission systems were set up as AC in the first place. Maybe high voltage DC would work, but you'd still need converters.
Each card, however, probably contains two 2GB or four 1GB flash chips rather than 1 4GB flash chip. I would imagine that 8GB cards would be possible with 4GB on one chip.
There are all kinds of things you can make from a disposable camera flash. You can make a strobe light by using a diac, neon lamps, or a triac and an external circuit connected across the shutter contacts (use a D cell instead of the AA so it charges faster) or make a paper clip shooter by connecting a coil in series with the flash lamp. Wrap the coil around a tube of some sort and put a paper clip just behind the coil. To fire it you will also need a *WELL INSULATED* push button wired to the shutter contacts. When the button is pushed, the flash lamp will begin to conduct and allow current to flow through the coil. I saw a similar device in an electronics class that was made from six disposable camera flash units wired in parallel, and connected to a flat coil on top of a clear box. There was a metal ring and a ping-pong ball on top of the coil, and when the cameras were discharged through the coil it was able to shoot the ping-pong ball about 50 feet vertically. (It used an SCR instead of the flash lamp as the switch.) Also you can get the cameras for free from some photo developing places and they only need 1 "AA" battery to work. The only problem is obviously the high voltage - if you are going to have 12 year olds messing with these things you need to make sure the cameras are insulated well before you let anyone turn on the power, and that they are discharged before anyone starts wiring anything up.
uh this has been in python for a while.
if object is not None:
return
Speakers are, and always will be, analog, so even if it isn't backwards compatible, and the player only has digital outputs, you *still* will be able to record it. You just need to open up whatever box has the speaker in it and tap off the output of the amplifier. Even if that's impossible (sealed enclosure?), you could always just put a microphone in front of the speakers and record from that. Basically there is no practical way to plug the "analog hole." If you can hear it, you can record it.
that is more or less what portage does in gentoo... the ebuilds just contain information on how to install any given package from the sources, and dependency info for that package.
Additionally, a "device capable of decrypting" would include the device which was intended to receive the signal in the first place! Even if it's not modified, it's got to decrypt the signal somewhere in order to do anything useful with it.
Well, if it's a mass-produced CD, with no serial numbers, and it's not "phoning home" anywhere, then there's no reason why an exact duplicate of the CD couldn't be produced. Maybe not with an ordinary CD-R drive, but certainly with mass CD production equipment.
Actually Macrovision messes with the automatic gain control circuits in VCRs. These circuits are not present in old VCRs, or in most 8mm VCRs, so these VCRs will record the signal. But if you try and copy the copied tape, with a new VCR, the macrovision is still there and it won't work.
NTP works fine through my linux iptables firewall, from machines on the inside. maybe you need to set up udp connection tracking?
well depends on how many tapes but a rough guess is... 10000 tapes * 20 GB / tape = 200000 GB 200000 GB * 8 bits/byte = 1.6 petabytes 1.6 petabytes * 30 m/s = 48 petabyte-meters/second
I doubt that the DVD CCA, which licenses CSS, would allow it. See the DVD FAQ at www.dvddemystified.com. It indicates that a CSS license costs $15,000 per year and is highly restrictive for exactly this reason.
you can add applets (system monitor, gnome-pilot, volume control, clock, etc...), as well as quick-launch buttons to the top toolbar. Besides, it doesn't really take up much space, and you can always just delete it and move the menus to the bottom bar.
Isn't the HOSTS file just a list of hostnames/IP addresses? Wouldn't any javascript in that file be worthless since it wouldn't be interpreted as Javascript? If anything in there can possibly be interpreted as javascript, there are some serious bugs in Windows, or in Internet Explorer.
Well the author of this article did not actually *replace* the CPU, he only *overclocked* it from 800 MHz to 1.33 GHz by changing some traces on the motherboard. It should work on any motherboard that supports more than one type of CPU, without removing the actual chip. This also assumes, however, that the existing chip will run at the increased speed without additional cooling, which may be difficult in a laptop.
4a. run 'hdparm -z /dev/hdX'
will rescan partition table.
by automatically rejecting any emails where the computation's results aren't present, like using cryptographic signatures?
It's already done with fingerprints... I don't see how this is much different.
is only 2-3 gigabytes... the ones in ipods are at least 10, right? it sounds like they just reduced the size of the platters, and they didn't significantly increase the storage density.
A radio has a local oscillator, operating at 10.7 MHz above or below the tuned frequency for FM and 455 kHz (?) above below the tuned frequency for AM. When you mix two frequencies, the two original frequencies, and their sum and difference result. The radio mixes the local oscillator signal with the incoming signal to get 10.7 MHz for FM and 455 kHz for AM. The rest of the circuits in the radio are tuned to that frequency. Actually older radios didn't do this, they just had variable tuning circuits in every stage, necessitating multi-gang variable capacitors and such. I think this system operates by sensing the (frequency - {10.7 MHz,455kHz} ) signals emitted by nearby radios.
There are most likely multiple access points operating on different channels, and in different areas. It's probably not a single AP.
Well, 1 gig per second / 54 megs per access point * 1 access point per 802.11 card equals about 19 cards, not exactly possible in one laptop. And that's if you're using 'g'. For 'b', you'd need almost 100 cards...
ummm i think if it skips or crashes that's either a *very* defective burner, or a software problem (that would mean the player doesn't understand the file structure on the disk.) If it just doesn't play, the media may be incompatible with a specific player.
$ grep "rm"
Binary file
$
Does that make