...a rain sensor that controls windshield wiper speed automatically, an auto dimming rear view mirror that I didn't have to flip when someone highbeams me and it had a really informative display that tells me mpg, outside temp and so on.
I have all of those features plus GPS-based Nav on my US 2003 Mini Cooper S.
General Jack D. Ripper: You know when fluoridation first began?
Group Capt. Lionel Mandrake: I-- no, no. I don't, Jack.
General Jack D. Ripper: Nineteen hundred and forty-six. Nineteen forty-six, Mandrake. How does that coincide with your post-war Commie conspiracy, huh? It's incredibly obvious, isn't it? A foreign substance is introduced into our precious bodily fluids without the knowledge of the individual. Certainly without any choice. That's the way your hard-core Commie works.
Amateur radio operators worldwide have been doing this for 43 years!
From AMSAT:
The Radio Amateur Satellite Corporation (as AMSAT is officially known) was first formed in the District of Columbia in 1969 as an educational organization. Its goal was to foster Amateur Radio's participation in space research and communication. AMSAT was founded to continue the efforts,
begun in 1961 [emphasis added], by Project OSCAR, a west coast USA-based group which built and launched the very first Amateur Radio satellite, OSCAR, on December 12, 1961, barely four years after the launch of Russia's first Sputnik.
Thanks for the informative and thoughtful reply. In my particular case, I'm evaluating running eCos+GCJ vs Wonka or Kaffe on an embedded processor. I had assumed that the GCJ-compiled code would be faster, but now I'm not so sure. I doubt Kaffe or Wonka do extreme optimization, but it sure got my attention when GCJ didn't compete favorably with 'real' JVMs. The main snag with GCJ is static compilation - eCos does not have any dynamic loading available, so things like System.loadLibrary() cause real problems.
Java code executed with Sun or IBM JVMs is not interpreted, but compiled to native and heavily optimized code.
No argument there, but wouldn't you think that compiling and optimizing the code every time you run a Java program would make it slower than compiling and optimizing it once ahead of time? All of that compiling and optimizing is included in the performance specs for the JVM's, but they almost uniformly trounce GCJ.
Holy Moley! Do not make one of these! An 800W Magnetron into a splash-fed positive gain antenna? This may zap a stereo, but it'll harm people, too (especially the eyes). IF you do the math, 800W of 2450MHz RF into a 15 dBi antenna is 'safe' 47 feet from the antenna (in an uncontrolled environment). Even at 0 dBi (like in a sidelobe) the RF exposure exceeds the uncontrolled limit over 8 feet away.
I would think a strong RF field in the audio range (somewhere around 8-15 KHz) would cause the stereo to self-destruct without harming people. An equivalent safe distance at 10KHz and a 0 dBi antenna requires a power level of 1.2 MW (!!!) Good luck getting 0 dBi of gain at 10 KHz.
What surprises me is that GCJ is never faster than a 'real' JVM. You'd think that natively compiled and optimized code would be faster than an interpreter. I guess there's optimization work to be done in gcjlib.
Could you please post a few links to bug reports of TCP connection hangs? I'm seeing a strange SCP/SSH issue, and I'd like to make sure my issue has already been reported. Thanks!
My concern with the space elevator is that passengers spend a week in the Van Allen belts where there's a lot of radiation.
I've been thinking about this issue, too. Some large percentage of the Van Allen belts are charged elementary particles - electrons and protons. The inner belt consists of protons with energies between 10 and 100 MeV. The outer belt is mostly ions and electrons.
The earth's magnetic field is only 0.5 Gauss or so, yet it is strong enough to protect the earth. How much power would it take to produce an equivalent (or stronger) field around a space station to deflect the charged particles? It wouldn't help the gamma, but it would knock down the radiation dose.
... like cars without traditional ignition keys should have a kill switch wired to the emergency brake pedal. Hit the emergency brakes, power is cut to the computer.
If it was like anything around here, you get fingerprinted, and they hand the fingerprint card to your parents in case you're kidnapped. The police don't want a bunch of toddler prints lying around.
There were like 3 versions - The short one, the narrated one, and the long one with spitting of water on the floor. I liked the non-chatty short one and the long spitty one.
Not to disagree with Mr. Scott, but if Deckard was a replicant, why did he always get his ass kicked by the 'real' replicants? Where was his super strength?...or was he being underclocked on purpose?
Robert Heinlein said it well:
There has grown up in the minds of certain groups in this country the notion that because a man or a corporation has made a profit out of the public for a number of years , the government and the courts are charged with the duty of guaranteeing such profit in the future, even in the face of changing circumstances and contrary public interest. This strange doctrine is not supported by statute nor common law. Neither individuals nor corporations have any right to come into court and ask that the clock of history be stopped, or turned back, for their private benefit.
- "Life-Line"
Also, don't forget that power amplification is not synonymous with hi-fi. There are many applications for power audio devices...
One that comes to mind is servo control. I've seen some whoppin' big 'audio' amps used to control servos and solenoids in as part of a position control system.
Slashdot Mirror
I have all of those features plus GPS-based Nav on my US 2003 Mini Cooper S.
...what Kerry's new prescription drug plan is!
1 + 0 = 1
The realization of zero was a major breakthrough, IMHO.
Nice Dr. Strangelove reference!
From Doctor Strangelove:
Thank you! That sounds exactly like what I'm experiencing!
Amateur radio operators worldwide have been doing this for 43 years!
From AMSAT:
Thanks for the reply. Please see this comment describing my situation and exactly what you've mentioned.
Thanks for the informative and thoughtful reply. In my particular case, I'm evaluating running eCos+GCJ vs Wonka or Kaffe on an embedded processor. I had assumed that the GCJ-compiled code would be faster, but now I'm not so sure. I doubt Kaffe or Wonka do extreme optimization, but it sure got my attention when GCJ didn't compete favorably with 'real' JVMs. The main snag with GCJ is static compilation - eCos does not have any dynamic loading available, so things like System.loadLibrary() cause real problems.
Java code executed with Sun or IBM JVMs is not interpreted, but compiled to native and heavily optimized code.
No argument there, but wouldn't you think that compiling and optimizing the code every time you run a Java program would make it slower than compiling and optimizing it once ahead of time? All of that compiling and optimizing is included in the performance specs for the JVM's, but they almost uniformly trounce GCJ.
Isn't it the GIJ interpreter against the others?
My guess would be no, because they specify -O0 and -O2 for the gcj runs. They wouldn't make sense for the gij interpreter.
Holy Moley! Do not make one of these! An 800W Magnetron into a splash-fed positive gain antenna? This may zap a stereo, but it'll harm people, too (especially the eyes). IF you do the math, 800W of 2450MHz RF into a 15 dBi antenna is 'safe' 47 feet from the antenna (in an uncontrolled environment). Even at 0 dBi (like in a sidelobe) the RF exposure exceeds the uncontrolled limit over 8 feet away.
I would think a strong RF field in the audio range (somewhere around 8-15 KHz) would cause the stereo to self-destruct without harming people. An equivalent safe distance at 10KHz and a 0 dBi antenna requires a power level of 1.2 MW (!!!) Good luck getting 0 dBi of gain at 10 KHz.
What surprises me is that GCJ is never faster than a 'real' JVM. You'd think that natively compiled and optimized code would be faster than an interpreter. I guess there's optimization work to be done in gcjlib.
Could you please post a few links to bug reports of TCP connection hangs? I'm seeing a strange SCP/SSH issue, and I'd like to make sure my issue has already been reported. Thanks!
... but the least they could've done is show us the corrected graph!!!
My concern with the space elevator is that passengers spend a week in the Van Allen belts where there's a lot of radiation.
I've been thinking about this issue, too. Some large percentage of the Van Allen belts are charged elementary particles - electrons and protons. The inner belt consists of protons with energies between 10 and 100 MeV. The outer belt is mostly ions and electrons.
The earth's magnetic field is only 0.5 Gauss or so, yet it is strong enough to protect the earth. How much power would it take to produce an equivalent (or stronger) field around a space station to deflect the charged particles? It wouldn't help the gamma, but it would knock down the radiation dose.
... like cars without traditional ignition keys should have a kill switch wired to the emergency brake pedal. Hit the emergency brakes, power is cut to the computer.
No! It's gotta be MXC-ium! Git it on!
Wouldn't trillion be 10^12?
Million = 10^6
Billion = 10^9
Trillion = 10^12
etc...
2.5 x 10^12 * 60 * 60 * 24 * 80 = 1.728 x 10^19 atoms. A mole of zinc masses in at 65.409g, and we have 28.7 micromols of zinc.
All of the zinc used massed in at a whopping 2 mg!!!
If it was like anything around here, you get fingerprinted, and they hand the fingerprint card to your parents in case you're kidnapped. The police don't want a bunch of toddler prints lying around.
15 rpm on a 30' diameter merry-go-round will get you 1.16g of lateral acceleration. That's a little fast for me...
Voiceover narrations almost never work...
Worst voiceover/narration: Dune
There were like 3 versions - The short one, the narrated one, and the long one with spitting of water on the floor. I liked the non-chatty short one and the long spitty one.
Not to disagree with Mr. Scott, but if Deckard was a replicant, why did he always get his ass kicked by the 'real' replicants? Where was his super strength?
From this link::
Also, don't forget that power amplification is not synonymous with hi-fi. There are many applications for power audio devices...
One that comes to mind is servo control. I've seen some whoppin' big 'audio' amps used to control servos and solenoids in as part of a position control system.