I'm suspecting that the pot is shielding the modem from a nearby source of interference. There's probably 3G signal arriving from above (e.g., from a tower), and it will certainly be scattered by various objets d'home so that some signal will be available from the vertical. Since the modems typically have rancid selectivity, the source of interference doesn't even have to be in the 3G band -- it could be a Wi-Fi access point, microwave oven, or any number of other things.
"technology" at least is still something that is largely created in Western countries and Japan.
Of the 40 new semiconductor fabs now under construction around the world, 35 of them are in Asia. Clue: The technology to build these next-generation fabs is not coming from "Western countries and Japan." Even if it were, the west could not design the next generation, because it will have had no experience operating and optimizing the present generation -- and none of its profits to reinvest.
When I was in graduate school in 1981, at a major US state university, I was one of four graduate students out of 102 in the electrical engineering department that were born in the US. A coworker attended the same university department in 1990, and was the only doctoral candidate who was a US citizen, out of almost 200 students. I begrudge my fellow foreign students nothing at all -- I knew several of them well, and it's a tough life; they had and have my respect -- but it was quite clear even 20 or 30 years ago that the nexus of new technology development was not going to stay in the US. And while this university was somewhat of an extreme case, the trend nationwide is clear. Very clear. Open a random IEEE technical journal -- Journal of Solid State Circuits, for example -- and look at the authorship of the papers. Globalization, which I support, has a corollary, and that is that no one nation or region has a monopoly on research and development.
You're right about most of the components in a PC, but not what determines the clock stability. The clock speed is set by a phase-locked loop using a crystal oscillator (usually quartz) as a frequency reference. Quartz crystals used in your garden-variety PC typically have a worst-case environmental stability specification of 10 to 100 ppm (0.001% to 0.01%), depending on a lot of factors, most of which are design (and cost) parameters, and most of the time the clock frequency is much closer than that: Running a "modern 3GHz CPU" over its entire specified operating temperature range (e.g., -10 to +60 C, although this will vary by manufacturer) one would expect less than 300 kHz frequency drift. (Note that this is the ambient air temperature, not the CPU temperature.)
One usually has to get down to the range of single-chip MCUs to find clock applications that can support frequency stability as poor as 0.1%. In these applications, piezoelectric ceramic resonators are common, due to their lower cost compared to crystals.
Just to amplify the point, in August 2003 the Trans-Atlantic Model (TAM) project, led by modeling legend Maynard Hill, sent a model airplane from Cape Spear, NF, Canada to Mannin Beach, Ireland, a flight of 3030 km lasting 38h 52 min 19 sec. The craft was radio-controlled during takeoff and landing, but used a GPS-based autopilot during the remainder of the flight. Surely, this is equivalent to launching and recovering the autonomous Scarlet Knight submarine manually at sea.
Keep in mind that ultra-thin, printed, "paper" batteries (usually printed on cellulose, or a thin polymer film for added mechanical strength, although paper itself can be done) have been commercially available for a decade -- see Power Paper and Blue Spark Technologies as just two examples.
...which changes my post, how? I know what he wrote. The interference has been a problem since the 1970s, and is still going on today. He admits to still owning the illegal equipment, and exhibits no remorse for his illegal acts in the past. What's your point?
... so you're one of the guys screwing up communications on the amateur bands, just for your fun. Thanks. Thanks a lot. And thanks for caring about someone other than yourself. Would you corrupt others' Internet communications as readily?
(n.b.: This type of illegal CB operation is especially bad because the illegal "channels" used are in the portion of the amateur 10m band used for international narrowband, weak-signal work -- usually in Morse code, and often at the threshold of audibility in a 250 Hz bandwidth. Since the transmission modes were different, the illegal operators often can not hear the communications they are disrupting; further, since the "freebanders" use wider, single sideband transmissions, a single illegal transmission can interfere with dozens of narrowband signals at once. Since this band is capable of worldwide communication at certain points in the sunspot cycle, the interference can quite literally be global in nature.)
By the way, the world has changed. In the UK, an amateur radio licence is now free, valid for the lifetime of the user, and available online. If you're worried about the licence examination (but you're a geek, so technical matters are no problem for you -- right?) there are clubs that will hire the room, give you the study book, and teach you the exam material, all for £45. So if you want to talk to the world, why not just follow existing international standards and agreements, and get an amateur radio license?
177,000 feet [flash] (about 54 km). However, this NASA site says 50 km (about 164,000 feet), while this source says 24 nautical miles (about 146,000 feet, or 44 km). My guess is that the differences are due to variations in mass and trajectory of the shuttle for various missions, and in improvements in the design (less weight, more thrust) over the years.
Cambridge is a fascinating place, especially for USian geeks. One can walk down an apparently ordinary street and see a small brass sign on an otherwise anonymous wall that notes that Alexander Fleming discovered penicillin there, Crick and Watson (the order is reversed in the UK from that usually heard in the US) discovered the structure of DNA there, or any number of other fundamental discoveries. Places that would be roped off from the masses in the US are just everyday parts of life in Cambridge, the epitome of British understatement.
A computer glitch that caused flight cancellations and delays across the U.S. Thursday has been resolved, the Federal Aviation Administration said. [emphasis added.]
You can't go inside it, but the HA.19, one of the Japanese midget submarines that participated (ineffectually) in the attack on Pearl Harbor, is on display at the National Museum of the Pacific War, in Fredericksburg, Texas.
When the car is completely quiet (no ventilation, no screaming kids, no music) I can hear them activate, if I'm actively listening for it an paying attention.
Exactly right.
Think slamming it in reverse at full throttle instantaneously, up to and including breaking the tires loose and smoking them. With current technology (electric "current" get it?) that would probably roast the controller and the motor.
?? I don't understand your point. What does slamming it in reverse at full throttle have to do with regenerative braking? The energy flow in regenerative braking is away from the wheels, not into them. It's not putting the car into reverse.
If I understand you correctly, the Prius has done this for a decade. One of my Priuses is at well over 100,000 miles, and still has its original brake pads. The only time the Prius' friction braking system is activated is during very slow speed stops (when there's not enough counter EMF from the generator to get significant regenerative braking), and during emergency stops (when maximum deceleration is requested by the driver). The rest of the time the car uses regenerative braking.
What do you mean by sacrificing power? Regenerative braking returns some of the vehicle's kinetic energy to the battery, making the car more efficient.
Really, native English speakers shouldn't be chauvenistic [sic] about the fact the rest of the world is speaking their language, they should be ashamed by their inability to accomodate [sic] other cultures, and humbled by the fact other people go through the length of learning theirs.
The difficulty for native, American English speakers is, which other language does one learn? (Native American, English speakers have their own set of problems.:-) ) In high school and college I took Spanish, and became relatively proficient at speaking, reading, and writing it. In my first job, though, I spent five or so years working closely with Japanese, took Japanese language classes, and got relatively proficient at speaking it, too -- but my Spanish suffered terribly. Then my job changed, and I went instead to Germany. I got moderately proficient in German, but lost practice in Japanese (to say nothing of my Spanish). I then returned to the US, in an environment where foreign language skills are of absolutely no value at all.
I'm now in a situation where I remember three foreign languages poorly, interchange words and syntax between them with embarrassing frequency and, after what seems like a lifetime of learning languages and accommodating other cultures, can only speak English fluently. What have I accomplished? I worked hard at learning my coworkers' and customers' languages, largely because I didn't want to feel chauvinistic about others' use of English, but couldn't get enough life-long practice in each to become and/or remain fluent.
I am totally impressed with anyone who learns English as a second language -- I'm sure there's a language somewhere with more exceptions to its rules, but I'm unaware of it -- but, as a lingua franca it's usually clear that English is the language to learn. It's less clear which language a native English speaker should learn.
The limit isn't in the line itself, it's in the endpoint. ADSL sends a signal through the line that gets received by special hardware sitting before the telco phone equipment which handles a much higher frequency range.
Now there's a barrier to break. The 400 mph barrier? Pfft. Imagine the cachet of being the first motorcyclist to break the million furlongs per fortnight barrier...
Slashdot Mirror
As usual, Garry Trudeau said it best. (Yeah, I carefully selected the bandwidth provider.)
my wife's prawn crackers
If that's not a euphemism, it should be.
I'm suspecting that the pot is shielding the modem from a nearby source of interference. There's probably 3G signal arriving from above (e.g., from a tower), and it will certainly be scattered by various objets d'home so that some signal will be available from the vertical. Since the modems typically have rancid selectivity, the source of interference doesn't even have to be in the 3G band -- it could be a Wi-Fi access point, microwave oven, or any number of other things.
Of the 40 new semiconductor fabs now under construction around the world, 35 of them are in Asia. Clue: The technology to build these next-generation fabs is not coming from "Western countries and Japan." Even if it were, the west could not design the next generation, because it will have had no experience operating and optimizing the present generation -- and none of its profits to reinvest.
When I was in graduate school in 1981, at a major US state university, I was one of four graduate students out of 102 in the electrical engineering department that were born in the US. A coworker attended the same university department in 1990, and was the only doctoral candidate who was a US citizen, out of almost 200 students. I begrudge my fellow foreign students nothing at all -- I knew several of them well, and it's a tough life; they had and have my respect -- but it was quite clear even 20 or 30 years ago that the nexus of new technology development was not going to stay in the US. And while this university was somewhat of an extreme case, the trend nationwide is clear. Very clear. Open a random IEEE technical journal -- Journal of Solid State Circuits, for example -- and look at the authorship of the papers. Globalization, which I support, has a corollary, and that is that no one nation or region has a monopoly on research and development.
What color are they?
You're right about most of the components in a PC, but not what determines the clock stability. The clock speed is set by a phase-locked loop using a crystal oscillator (usually quartz) as a frequency reference. Quartz crystals used in your garden-variety PC typically have a worst-case environmental stability specification of 10 to 100 ppm (0.001% to 0.01%), depending on a lot of factors, most of which are design (and cost) parameters, and most of the time the clock frequency is much closer than that: Running a "modern 3GHz CPU" over its entire specified operating temperature range (e.g., -10 to +60 C, although this will vary by manufacturer) one would expect less than 300 kHz frequency drift. (Note that this is the ambient air temperature, not the CPU temperature.)
One usually has to get down to the range of single-chip MCUs to find clock applications that can support frequency stability as poor as 0.1%. In these applications, piezoelectric ceramic resonators are common, due to their lower cost compared to crystals.
Just to amplify the point, in August 2003 the Trans-Atlantic Model (TAM) project, led by modeling legend Maynard Hill, sent a model airplane from Cape Spear, NF, Canada to Mannin Beach, Ireland, a flight of 3030 km lasting 38h 52 min 19 sec. The craft was radio-controlled during takeoff and landing, but used a GPS-based autopilot during the remainder of the flight. Surely, this is equivalent to launching and recovering the autonomous Scarlet Knight submarine manually at sea.
Proof of TI.
Keep in mind that ultra-thin, printed, "paper" batteries (usually printed on cellulose, or a thin polymer film for added mechanical strength, although paper itself can be done) have been commercially available for a decade -- see Power Paper and Blue Spark Technologies as just two examples.
...which changes my post, how? I know what he wrote. The interference has been a problem since the 1970s, and is still going on today. He admits to still owning the illegal equipment, and exhibits no remorse for his illegal acts in the past. What's your point?
... so you're one of the guys screwing up communications on the amateur bands, just for your fun. Thanks. Thanks a lot. And thanks for caring about someone other than yourself. Would you corrupt others' Internet communications as readily?
(n.b.: This type of illegal CB operation is especially bad because the illegal "channels" used are in the portion of the amateur 10m band used for international narrowband, weak-signal work -- usually in Morse code, and often at the threshold of audibility in a 250 Hz bandwidth. Since the transmission modes were different, the illegal operators often can not hear the communications they are disrupting; further, since the "freebanders" use wider, single sideband transmissions, a single illegal transmission can interfere with dozens of narrowband signals at once. Since this band is capable of worldwide communication at certain points in the sunspot cycle, the interference can quite literally be global in nature.)
By the way, the world has changed. In the UK, an amateur radio licence is now free, valid for the lifetime of the user, and available online. If you're worried about the licence examination (but you're a geek, so technical matters are no problem for you -- right?) there are clubs that will hire the room, give you the study book, and teach you the exam material, all for £45. So if you want to talk to the world, why not just follow existing international standards and agreements, and get an amateur radio license?
177,000 feet [flash] (about 54 km). However, this NASA site says 50 km (about 164,000 feet), while this source says 24 nautical miles (about 146,000 feet, or 44 km). My guess is that the differences are due to variations in mass and trajectory of the shuttle for various missions, and in improvements in the design (less weight, more thrust) over the years.
Apogee of the SRBs is at approximately 220,000 feet (about 67 km).
And while you're at it, s/12-\/12/12-1\/2/g
Would that make them .ssv files? .scsv files? Or something else?
Cambridge is a fascinating place, especially for USian geeks. One can walk down an apparently ordinary street and see a small brass sign on an otherwise anonymous wall that notes that Alexander Fleming discovered penicillin there, Crick and Watson (the order is reversed in the UK from that usually heard in the US) discovered the structure of DNA there, or any number of other fundamental discoveries. Places that would be roped off from the masses in the US are just everyday parts of life in Cambridge, the epitome of British understatement.
All true, but note line 1 of TFA:
...according to the Wall Street Journal. Wonder if they'll give me a lift home?
...stuck in Atlanta...
Or, "...and can be reassembled."
I've had far too many phones that split in two, or otherwise fell apart.
You can't go inside it, but the HA.19, one of the Japanese midget submarines that participated (ineffectually) in the attack on Pearl Harbor, is on display at the National Museum of the Pacific War, in Fredericksburg, Texas.
Exactly right.
?? I don't understand your point. What does slamming it in reverse at full throttle have to do with regenerative braking? The energy flow in regenerative braking is away from the wheels, not into them. It's not putting the car into reverse.
If I understand you correctly, the Prius has done this for a decade. One of my Priuses is at well over 100,000 miles, and still has its original brake pads. The only time the Prius' friction braking system is activated is during very slow speed stops (when there's not enough counter EMF from the generator to get significant regenerative braking), and during emergency stops (when maximum deceleration is requested by the driver). The rest of the time the car uses regenerative braking.
What do you mean by sacrificing power? Regenerative braking returns some of the vehicle's kinetic energy to the battery, making the car more efficient.
The difficulty for native, American English speakers is, which other language does one learn? (Native American, English speakers have their own set of problems. :-) ) In high school and college I took Spanish, and became relatively proficient at speaking, reading, and writing it. In my first job, though, I spent five or so years working closely with Japanese, took Japanese language classes, and got relatively proficient at speaking it, too -- but my Spanish suffered terribly. Then my job changed, and I went instead to Germany. I got moderately proficient in German, but lost practice in Japanese (to say nothing of my Spanish). I then returned to the US, in an environment where foreign language skills are of absolutely no value at all.
I'm now in a situation where I remember three foreign languages poorly, interchange words and syntax between them with embarrassing frequency and, after what seems like a lifetime of learning languages and accommodating other cultures, can only speak English fluently. What have I accomplished? I worked hard at learning my coworkers' and customers' languages, largely because I didn't want to feel chauvinistic about others' use of English, but couldn't get enough life-long practice in each to become and/or remain fluent.
I am totally impressed with anyone who learns English as a second language -- I'm sure there's a language somewhere with more exceptions to its rules, but I'm unaware of it -- but, as a lingua franca it's usually clear that English is the language to learn. It's less clear which language a native English speaker should learn.
When the GP wrote
what did you think he had in mind?
You two are in agreement.
Now there's a barrier to break. The 400 mph barrier? Pfft. Imagine the cachet of being the first motorcyclist to break the million furlongs per fortnight barrier...