Having worked briefly in ElectroMagnetic Compatibility (EMC); you'd be amazed at how bad many consumer products are for picking up and/or generating interference. Many manufacturers (especially 'no name' cheap stuff) don't bother testing at all, and put the compliance labels on anyway on the hope they don't get caught. I remember hearing about something like 60% of products in a certain market turning out to be non-compliant. I'd recommend running power and signal seperately as a 'just in case' anyway to avoid unnecessary ballache, even though they *ought* to work together. Of course YMMV.
As for auto electrics, the audio signal cables from the head unit in the dash to the amp are high impedance, unbalanced and with a low level signal.
The 12V line(s) in a car are noisy as hell, with noise from all the engine electrics as well as injected noise from every piece of electronics in there. That's without the choppy and heavy current draw of any car amplifier (think BIG switchmode DC-DC convertor powering a very variable load, with all sorts of feedback and resonances and you're getting there). Running a noisy 12V cable next to sensitive signal cables == bad idea.
I USED to do this, but with paper masking tape the adhesive goes gooey and nasty after a period of months and leaves a sticky mess all over your cables. Also the paper browns and goes brittle over time, so eventually you're left with messy cables everywhere as before, but now decorated with sticky goo and bits of paper.
Business-to-business spam is not covered by legislation AFAIK; indeed the copied text says "Electronic mail marketing messages should not be sent to individuals"
Your reply (to the spammers) was applicable to your situation, but not the b2b spam I described; although I suppose it depends on the definition of "individual". Maybe spam to "sales@company.com" is allowed, but "steve.smith@company.com" is not.
Most likely. On a similar note, it's interesting how in 50+ years of television, there is virtually no concept of television addiction (compare Television Addiction to Internet Addiction on Wikipedia).
I disagree. Until the Internet became popular, "concerned groups" were always banging on about children getting "square eyes" from watching too much TV, and still there is the meme of the "couch potato", watching TV all the time and becoming a fat, lazy slob; a drain on society. Note how someone who sits reading books is not stereotyped in this way.
I'm not surprised that Wikipedia has more material about "Internet Addiction"; after all it is a website, maintained by people with a keen interest in such matters, and 'excessive TV watching' has not been discussed much since the dawn of Wikipedia at least. Full disclosure: I watch around 2 hours of TV per week, only at weekends
Do legitimate businesses send unsolicited email? I have never seen one.
I have, very very often. It seems common in the b2b market in the UK.
And yes, I am talking about real, honest-to-god legitimate businesses, with reputations; as well as the countless spams from others with differing levels of legitimacy (all the way from slightly dodgy telecoms resellers, through SEOs all the way down to the pill peddlers we all know and 'love').
I wonder if the symptoms of "internet addiction" the authorities look for include 'seeking inaccurate information' from 'undesirable sites' or possibly 'spreading rumours' or 'inciting unrest'?
Sir; I assure you that I was and am aware of the things you linked to.
Perhaps I should have put more emphasis on the word
"new" in my post or worded it differently.
Yours, fellow concerned British citizen.
That's an excellent question, it determines whether I'll need to drive an old London Taxi to an army base near Manchester, or whether I'll need a cricket bat, shovel, Jaguar and an abandoned pub.
Cue UK government announcing multi billion plan to make the internet 'safe' with new content filtering, anti-filesharing and communication logging schemes in 5... 4... 3...
They do this in the UK too.
Whats more, they now add a £15 surcharge to speeding fines etc. to fund "compensation for the victims of crime". http://www.telegraph.co.uk/news/5225133/Fined-motorists-to-be-hit-with-15-victims-surcharge.html
This comes as they are rolling out a huge expansion of speed cameras, including "ANPR" (Automatic Number Plate Recognition) which time your car point-to-point, over many miles, and handily also record your (and everybody else's) vehicle movements for 5 years at police central command.
People still use IE because its icon is almost always present on the desktop, and it has "Internet" written under the icon. Such an icon draws inexperienced user's mouse pointers like a light bulb draws moths, especially compared to a FF icon. "FireFox? What does that have to do with the internet?"
At my workplace I even removed all the IE icons I could find, only to be complained at that "I can't find the internet any more!".
As an inhabitant of the English Midlands I laugh in the face of natural disasters.
Hurricanes: No
Tornados: Very, very small; very, very occasionally (the last one was 2005, which wrecked some roofs and felled some trees)
Tsunami: No
Earthquakes: Rare, very small (last one 2002, damaged 1 street)
Volcanos: No
Floods: Often, but minor, in small easily predicted areas (think "my carpets are ruined!" rather than "where is my house?")
Wildfires: No
Dangerous creatures: We killed all those hundreds of years ago
I'm sure we'll let you all in if you help get rid of all the government surveillance.
Yours faithfully, Birmingham.
You're essentially correct in terms of convected heat, but it is important to note that human skin is extremely absorbant to infrared radiation. A hot incandescent bulb shining down on you can make you feel warmer than the air temperature in the room would suggest.
I'm just wondering, was the destination sign already set to that, or did the superhuman bus driver have the presence of mind to set the sign to "SORRY- NOT IN SERVICE" after it crashed?
They would be angry because they've been crossed with mutated ill-tempered sea bass! All it would take then to lead to armageddon would be some idiot attaching frickin' laser beams to their heads!
Slashdot Mirror
Having worked briefly in ElectroMagnetic Compatibility (EMC); you'd be amazed at how bad many consumer products are for picking up and/or generating interference. Many manufacturers (especially 'no name' cheap stuff) don't bother testing at all, and put the compliance labels on anyway on the hope they don't get caught. I remember hearing about something like 60% of products in a certain market turning out to be non-compliant. I'd recommend running power and signal seperately as a 'just in case' anyway to avoid unnecessary ballache, even though they *ought* to work together. Of course YMMV.
As for auto electrics, the audio signal cables from the head unit in the dash to the amp are high impedance, unbalanced and with a low level signal.
The 12V line(s) in a car are noisy as hell, with noise from all the engine electrics as well as injected noise from every piece of electronics in there. That's without the choppy and heavy current draw of any car amplifier (think BIG switchmode DC-DC convertor powering a very variable load, with all sorts of feedback and resonances and you're getting there). Running a noisy 12V cable next to sensitive signal cables == bad idea.
I USED to do this, but with paper masking tape the adhesive goes gooey and nasty after a period of months and leaves a sticky mess all over your cables. Also the paper browns and goes brittle over time, so eventually you're left with messy cables everywhere as before, but now decorated with sticky goo and bits of paper.
Business-to-business spam is not covered by legislation AFAIK; indeed the copied text says "Electronic mail marketing messages should not be sent to individuals"
Your reply (to the spammers) was applicable to your situation, but not the b2b spam I described; although I suppose it depends on the definition of "individual". Maybe spam to "sales@company.com" is allowed, but "steve.smith@company.com" is not.
As others have mentioned, do you also propose to ban welding in shop class? Alcohol burners in chemistry?
Already happened in the UK, I'm afraid: http://www.guardian.co.uk/education/2005/nov/15/schools.uk3
Yes, I know that this is due to over-cautious schools and staff rather than any kind of top down "ban", but the effect is the same.
Most likely. On a similar note, it's interesting how in 50+ years of television, there is virtually no concept of television addiction (compare Television Addiction to Internet Addiction on Wikipedia).
I disagree. Until the Internet became popular, "concerned groups" were always banging on about children getting "square eyes" from watching too much TV, and still there is the meme of the "couch potato", watching TV all the time and becoming a fat, lazy slob; a drain on society. Note how someone who sits reading books is not stereotyped in this way.
I'm not surprised that Wikipedia has more material about "Internet Addiction"; after all it is a website, maintained by people with a keen interest in such matters, and 'excessive TV watching' has not been discussed much since the dawn of Wikipedia at least.
Full disclosure: I watch around 2 hours of TV per week, only at weekends
Do legitimate businesses send unsolicited email? I have never seen one.
I have, very very often. It seems common in the b2b market in the UK.
And yes, I am talking about real, honest-to-god legitimate businesses, with reputations; as well as the countless spams from others with differing levels of legitimacy (all the way from slightly dodgy telecoms resellers, through SEOs all the way down to the pill peddlers we all know and 'love').
I wonder if the symptoms of "internet addiction" the authorities look for include 'seeking inaccurate information' from 'undesirable sites' or possibly 'spreading rumours' or 'inciting unrest'?
Last time I checked, the USA had already retaliated with endless "news" and memorials of Michael Jackson's death...
*ducks*
Sir; I assure you that I was and am aware of the things you linked to. Perhaps I should have put more emphasis on the word "new" in my post or worded it differently.
Yours, fellow concerned British citizen.
Were the zombies filled with rage?
That's an excellent question, it determines whether I'll need to drive an old London Taxi to an army base near Manchester, or whether I'll need a cricket bat, shovel, Jaguar and an abandoned pub.
Cue UK government announcing multi billion plan to make the internet 'safe' with new content filtering, anti-filesharing and communication logging schemes in 5... 4... 3...
They do this in the UK too.
Whats more, they now add a £15 surcharge to speeding fines etc. to fund "compensation for the victims of crime". http://www.telegraph.co.uk/news/5225133/Fined-motorists-to-be-hit-with-15-victims-surcharge.html
This comes as they are rolling out a huge expansion of speed cameras, including "ANPR" (Automatic Number Plate Recognition) which time your car point-to-point, over many miles, and handily also record your (and everybody else's) vehicle movements for 5 years at police central command.
are cats poised to take over the world?
No they won't, deep down they're just pussies...
People still use IE because its icon is almost always present on the desktop, and it has "Internet" written under the icon. Such an icon draws inexperienced user's mouse pointers like a light bulb draws moths, especially compared to a FF icon. "FireFox? What does that have to do with the internet?"
At my workplace I even removed all the IE icons I could find, only to be complained at that "I can't find the internet any more!".
Then they can say "Look! We're not copying Google- "Bing Is Not Google", it's in our name!!"
As an inhabitant of the English Midlands I laugh in the face of natural disasters.
Hurricanes: No
Tornados: Very, very small; very, very occasionally (the last one was 2005, which wrecked some roofs and felled some trees)
Tsunami: No
Earthquakes: Rare, very small (last one 2002, damaged 1 street)
Volcanos: No
Floods: Often, but minor, in small easily predicted areas (think "my carpets are ruined!" rather than "where is my house?")
Wildfires: No
Dangerous creatures: We killed all those hundreds of years ago
I'm sure we'll let you all in if you help get rid of all the government surveillance.
Yours faithfully, Birmingham.
You're essentially correct in terms of convected heat, but it is important to note that human skin is extremely absorbant to infrared radiation. A hot incandescent bulb shining down on you can make you feel warmer than the air temperature in the room would suggest.
A forklift? Or possibly Chuck Norris.
Of course! Indeed, forklifts are advised to avoid areas where Chuck Norris is in operation.
No; in the UK (where The Telegraph is based) 1,500 == 1500 , NOT 1.5 . IIRC in mainland Europe ',' is the decimal separator, but not here (UK).
This gesture glove, combined with a large LED-matrix display fitted to the back of my car would take driving to a whole new level.
I'm just wondering, was the destination sign already set to that, or did the superhuman bus driver have the presence of mind to set the sign to "SORRY- NOT IN SERVICE" after it crashed?
They would be angry because they've been crossed with mutated ill-tempered sea bass! All it would take then to lead to armageddon would be some idiot attaching frickin' laser beams to their heads!
Is there ANYTHING that's forklift-proof? Walls, crates, freight containers, steel I-beams.. nothing can resist the awesome power of a forklift.
It's not Lupus.
It's NEVER Lupus