make pop-up and pop-under blocking somehow an "effective digital protection" scheme, doubleclick will be in violation of the DMCA for writing code to evade that protection?
Drano, which contains lots of nifty sodium hydroxide, does a real number on aluminum cans. Did you know aluminum cans have a plastic liner inside them? I performed this neat "experiment" to find out for myself: (don't try this yourself):
Get a clean peanut butter jar large enough to contain a 12 oz aluminum soda can.
Poke a pencil-sized hole in the jar's lid.
Get a 12 oz soda can and scrape a good bit of the paint off the outside can.
GO OUTSIDE, WEARING PROTECTIVE GEAR.
Carefully mix up an horrendously strong batch of drano and water. Having enough drano so that it all can't dissolve is a good thing.
Carefully place the soda can in the PB jar, and fill it with the drano syrup.
Quickly screw the lid on the PB jar, and get upwind quickly.
As the NaOH eats away the aluminum, large quantities of hydrogen and heat are produced.
When all the fun is over and the jar has cooled, neutralize the solution with a convenient acid - vinegar, orange juice, etc. and dispose of properly.
When I did this, I got a very strong odor of ammonia. Can anyone explain where it came from? I'm guessing the H2 combined with atmospheric N2, but I'm no chemist.
The only power producer is the Solar Panels. I wonder if NASA has considered adding an SRG (more efficient than the RTGs of the 60's) to these rovers so that they have more power available to them?
I was watching Nasa select TV, and a reporter asked the panel what one thing they wished they'd had on board. Two scientist's #1: an RTG, so they could drive this thing around for years. I think it's a global shame that politics and enviro-whacko pseudo-science has gotten in the way of NASA even trying to launch the best possible mission. Instead, they know the whackos will either get it banned outright, or get a restraining order that'll make them miss their launch window, so they don't even try!
I think your definition of "commercial purposes" is a little narrow. There's a big difference between who constructs the 'scope and what the 'scope is used for. Gathering the parts and then having your local geeky kid build it for you is not, IMHO, commercial. In essence you're contracting the geeky kid to assemble your pile of parts into a working 'scope - he's not "offering a fully assembled device for sale".
If you offer STM services for $100/sample, that's commercial use of the design/device.
Humm...good question. You can probably modify any of the programs to write to an audio file instead of the sound card (which is what most ham software uses: radio <-> soundcard). Most ham software is GPL or better.
There are a few constraints you need to look into.
What is the available bandwidth of the tape deck?
How likely is a dropout of audio (for a few mS)
how much crosstalk is there between channels?
Answers to these questions will help choose which encoding method is best for you.
The absolutely simplest would be straight FSK (Frequency shift keying). A one bit would be a few mS of tone #1, and a zero bit would be a few mS of tone #2. You'd need start bits on each byte, and possibly a stop and parity bit. Look up rs-232 framing to get an idea of what async data looks like. If you get adventurous, you can try Manchester encoding, then progress to QAM (Quadrature/Amplitude modulation).
Seriously, look at the books available at www.arrl.org - they have some pretty detailed info. Also, Phil Karn had put of papers on modulation schemes that are used in the real world. I think he was one of the founders of Qualcomm.
As for controlling the actual hardware, others have suggested Linux drivers. I agree.
For actually encoding the data into an audio stream, I would suggest googling for Amateur radio data protocols using modulation schemes like MFSK, QAM, Raised Cosine, etc. Hams have been battling the narrow bandwidth problem for a long time, and have come up with many encoding schemes to protect the data against fading, multipath, etc (many of which are also present on cassette recordings). this site gives examples of digital modulation schemes, as well as a link to cool audio samples!
You might also google for "Phil Karn" or "KA9Q" - he's done a ton of work in this field. Also, the AMSAT or ARRL folk may have some info.
So get a boot floppy image, add your BIOS update du jour, and create a bootable 1.44MB El Torito CD image from it. Voila! Bootable CD that is the same as having a floppy drive. (Yes, the CD appears as a: ).
Transformers are made from piezoelectric materials by applying a chopped electric voltage to one side of a piezoelectric wafer.
It seems that they are still using some sort of line-side switch to manipulate the input to the piezo crystal. This means that having a large input voltage range is still quite possible by varying the duty cycle or turn-on phase point of the input waveform.
Not that it matters, but it would violate the equal protection clauses of the US Constitution and most/ever state Constitution. The police would be targeting those with EZPass only. That would be like only giving tickets to a particular race or only people with red cars.
Really? I'd hardly call predicting the weather a simple case of true-or-false.
This is what I want out of a weather forecast - will detectable precipitation fall from the sky within a mile of my house in the next 24 hrs? A simple boolean question. I don't care if it's a millimeter or a foot - precip/no precip.
Thanks for the reply. I did RT[F]A - my "Sheesh" was aimed at the author of the Slashdot synopsis, not the author of the article. Current treatments don't "Zap everything in the line of fire" - they do have some incidental exposure, but nothing like it used to be before multi-beam and utilizing the Bragg Peak to deposit the dose where you want it.
This allows the treatment to be fine tuned so it only affects the tissues at a very specific depth - unlike traditional therapies which zap everything in the line of fire.
Re:Minor factual error: no "darkside" of the moon
on
The Case for the Moon
·
· Score: 1
If you could shield the conductors from radiant solar energy, you could use superconductors. The ambient 'temperature' of space (without direct insolation) is colder than most of our superconductors discovered so far.
According to the Hop-On website, the '911' button has to be pressed for 2 seconds, followed by the 'send' button. I'm thinking I cal manually dial 911+send in under two secs...
If you enjoy amateur radio or shortwave listening, the RF 'hash' coming from the lines will swamp weak signals.
The power company probably has an easement across your property, and can demolish any obstacle in the way of fixing their lines. On the other hand, I know some folk who have effectively gotten the power company to pay them for the loss-of-use of their land.
Slashdot Mirror
make pop-up and pop-under blocking somehow an "effective digital protection" scheme, doubleclick will be in violation of the DMCA for writing code to evade that protection?
Drano, which contains lots of nifty sodium hydroxide, does a real number on aluminum cans. Did you know aluminum cans have a plastic liner inside them? I performed this neat "experiment" to find out for myself: (don't try this yourself):
- Get a clean peanut butter jar large enough to contain a 12 oz aluminum soda can.
- Poke a pencil-sized hole in the jar's lid.
- Get a 12 oz soda can and scrape a good bit of the paint off the outside can.
- GO OUTSIDE, WEARING PROTECTIVE GEAR.
- Carefully mix up an horrendously strong batch of drano and water. Having enough drano so that it all can't dissolve is a good thing.
- Carefully place the soda can in the PB jar, and fill it with the drano syrup.
- Quickly screw the lid on the PB jar, and get upwind quickly.
- As the NaOH eats away the aluminum, large quantities of hydrogen and heat are produced.
- When all the fun is over and the jar has cooled, neutralize the solution with a convenient acid - vinegar, orange juice, etc. and dispose of properly.
When I did this, I got a very strong odor of ammonia. Can anyone explain where it came from? I'm guessing the H2 combined with atmospheric N2, but I'm no chemist.What about this monster?
What a name - it means, roughly, "Giant shapeless phallus". Could this describe Darl, too?
You could probably pull the crystal off frequency enough by paralleling the load capacitor.
The only power producer is the Solar Panels. I wonder if NASA has considered adding an SRG (more efficient than the RTGs of the 60's) to these rovers so that they have more power available to them?
I was watching Nasa select TV, and a reporter asked the panel what one thing they wished they'd had on board. Two scientist's #1: an RTG, so they could drive this thing around for years. I think it's a global shame that politics and enviro-whacko pseudo-science has gotten in the way of NASA even trying to launch the best possible mission. Instead, they know the whackos will either get it banned outright, or get a restraining order that'll make them miss their launch window, so they don't even try!
I did try it for a leaky tire, but @ 90mph it kept flying off...
It also helps to pull over to the side of the road before attempting to patch the tire.
Unfortunately, he's only got 10 fingers...
That's funny, I have 1010 fingers.
I think your definition of "commercial purposes" is a little narrow. There's a big difference between who constructs the 'scope and what the 'scope is used for. Gathering the parts and then having your local geeky kid build it for you is not, IMHO, commercial. In essence you're contracting the geeky kid to assemble your pile of parts into a working 'scope - he's not "offering a fully assembled device for sale".
If you offer STM services for $100/sample, that's commercial use of the design/device.
There are a few constraints you need to look into.
- What is the available bandwidth of the tape deck?
- How likely is a dropout of audio (for a few mS)
- how much crosstalk is there between channels?
Answers to these questions will help choose which encoding method is best for you.The absolutely simplest would be straight FSK (Frequency shift keying). A one bit would be a few mS of tone #1, and a zero bit would be a few mS of tone #2. You'd need start bits on each byte, and possibly a stop and parity bit. Look up rs-232 framing to get an idea of what async data looks like. If you get adventurous, you can try Manchester encoding, then progress to QAM (Quadrature/Amplitude modulation).
Seriously, look at the books available at www.arrl.org - they have some pretty detailed info. Also, Phil Karn had put of papers on modulation schemes that are used in the real world. I think he was one of the founders of Qualcomm.
Good luck!
First the article says that it was an ancient star that exploded, and at the end it says that it was an ancient comet that exploded.
Could it be that the star's core _was_ the comet seen by the Chinese, and as it outgassed, provided the dust we see now as the meteor shower?
As for controlling the actual hardware, others have suggested Linux drivers. I agree.
For actually encoding the data into an audio stream, I would suggest googling for Amateur radio data protocols using modulation schemes like MFSK, QAM, Raised Cosine, etc. Hams have been battling the narrow bandwidth problem for a long time, and have come up with many encoding schemes to protect the data against fading, multipath, etc (many of which are also present on cassette recordings). this site gives examples of digital modulation schemes, as well as a link to cool audio samples!
You might also google for "Phil Karn" or "KA9Q" - he's done a ton of work in this field. Also, the AMSAT or ARRL folk may have some info.
So get a boot floppy image, add your BIOS update du jour, and create a bootable 1.44MB El Torito CD image from it. Voila! Bootable CD that is the same as having a floppy drive. (Yes, the CD appears as a: ).
From the article:It seems that they are still using some sort of line-side switch to manipulate the input to the piezo crystal. This means that having a large input voltage range is still quite possible by varying the duty cycle or turn-on phase point of the input waveform.
SCO's case against IBM?
How is "Speed check by EZPass" much different?
Not that it matters, but it would violate the equal protection clauses of the US Constitution and most/ever state Constitution. The police would be targeting those with EZPass only. That would be like only giving tickets to a particular race or only people with red cars.
Really? I'd hardly call predicting the weather a simple case of true-or-false.
This is what I want out of a weather forecast - will detectable precipitation fall from the sky within a mile of my house in the next 24 hrs? A simple boolean question. I don't care if it's a millimeter or a foot - precip/no precip.
Thanks for the reply. I did RT[F]A - my "Sheesh" was aimed at the author of the Slashdot synopsis, not the author of the article. Current treatments don't "Zap everything in the line of fire" - they do have some incidental exposure, but nothing like it used to be before multi-beam and utilizing the Bragg Peak to deposit the dose where you want it.
This allows the treatment to be fine tuned so it only affects the tissues at a very specific depth - unlike traditional therapies which zap everything in the line of fire.
Ever heard of a Bragg Peak?
Ever heard of multi-beam treatment?
Sheesh!
...that an episode of mst3k featured a movie called "Space Mutiny" that re-used old Battlestar Galactica footage and sound effects?
Not only did the movie blow chunks, it used "borrowed" footage to boot!
You guys are unblocking the file before searching, right? You'll miss instances of your that wrap around eol. Use:
Oh great! There goes the price of Pepto-Bismol. (Yes, it contains the metal Bismuth).
If you could shield the conductors from radiant solar energy, you could use superconductors. The ambient 'temperature' of space (without direct insolation) is colder than most of our superconductors discovered so far.
According to the Hop-On website, the '911' button has to be pressed for 2 seconds, followed by the 'send' button. I'm thinking I cal manually dial 911+send in under two secs...
By the way, you can get internal photos, etc here
Even at 0.5c, 3000 km / (0.5 * 300e6 m/s) = 20 ms one way. At 0.75c, you're looking at +- 27ms round trip. Not too shabby for a 6000km trip!
If you enjoy amateur radio or shortwave listening, the RF 'hash' coming from the lines will swamp weak signals.
The power company probably has an easement across your property, and can demolish any obstacle in the way of fixing their lines. On the other hand, I know some folk who have effectively gotten the power company to pay them for the loss-of-use of their land.