You might hurt the metal wall, but if the target is itself not metal, it will be quite unharmed.
If you can manage to get a chunk of that metal wall to hit a target on the other side, they may not be quite so unharmed. Many antitank weapons, for example, are designed to cause the interior surface of the tank's armor to spall, such that the resulting flying pieces of the tank's own armor shred the equipment and people inside the tank. It's even necessary to fully penetrate the armor in order to induce spalling (i.e., with HESH ammunition).
I'm generally pretty hardcore libertarian and in favor of much, much smaller government than we presently have, but there are still some things that I think are not best provided by a free market, and which are quite beneficial to most of us: roads and highways, power and water supplies, sewage treatment, fire departments, and basic communications services like POTS. Even police forces, though as the enforcement arm of a government that I think has become way too large and intrusive, they're my least favorite member of that list.;)
I would think that if you wanted to live out where there were no people, why would you want to be online with them.
Now, that's just silly. We're not just talking about hermits on mountaintops getting their phone lines cut off. My 5-acre property (which was formerly a grapefruit grove, is in an area of citrus groves that are gradually being replaced by residences as the cost of irrigation makes the production unprofitable, and is still zoned as agricultural land) is only 2-3 miles down the road from the nearest tract home neighborhood, is within a short walk from another residential neighborhood of semi-custom homes, and overlooks suburban/urban sprawl that goes all the way to the visible horizon. Yet it's still outside the cable TV coverage area, and its telephone service is provided by a switch which is too far away to provide DSL or even ISDN. There are an awful lot of people who live in areas where analog telephone lines are the only available option for voice or data communications, yet are even less isolated and less rural than my area (which is itself just outside the fringes of city as far as the eye can see).
I moved out here and built a house because I like to have a bit more space around my home than I had when I lived in suburbia, I don't like my neighbors' kids trampling my front yard every day, I don't like hearing my neighbors fighting with their spouses all the time, I like to give my dogs a big yard to run around in, I don't want a homeowner's association telling me what I can and can't do, and I happen to have hobbies which take up a bit more room than a suburban lot can provide (I collect and restore vintage military trucks, and play with ham radio; see my web page if you're curious). But I'm not cut off from humanity, and as an electrical engineer who regularly telecommutes rather than driving to work, I use my (crappy, cellular) data connection quite heavily. And for that matter, I'm online here talking with you right now.;-)
Now, I'm not saying that the phone companies should be forced and/or subsidized to build out their ISDN/DSL/fiber/etc. infrastructure to serve people like me who chose to give up some public utility access in exchange for a bit more space around their homes, but please understand that a lot more people than just a few isolated hermits would be negatively impacted by pulling the plug on POTS.
Oh, I certainly understand that they would never willingly run new lines out here unless they were forced to. I don't think they would have run the old lines that are already out here if they hadn't been forced to, possibly combined with early settlers out here who paid dearly to have power poles put in. I don't fault the cable companies for not running cable out here, because it clearly wouldn't make economic sense for them to do so. I'm not even suggesting that the telcos should be forced to build out their infrastructure in rural areas like I'm in; in general, I'm quite opposed to most governmental and regulatory intrusion. I'm just stating the simple fact that if the telcos simply cut off analog phone service without building out their digital capabilities where they're not currently available, then a lot of people (though a small percentage of the population) would be cut off. I bring this up only because I suspect that a lot of people reading this thread may not be aware that there are technical limitations which make digital services like ISDN and DSL unavailable in some areas that have POTS service, even today.
I understood the limitations I'd face out here when I moved here, and I decided that I'd rather live on five acres with limited utilities and a wonderful view than an eighth of an acre with the neighbors' annoying kids trampling my front lawn every day, constant traffic noise, always overhearing my neighbors arguing with each other, and so forth. I'm not expecting any handouts. I'll get reasonable broadband when other nearby development happens to drag it into my area. There's continuing growth nearby, and my property will probably be surrounded by suburbs in a decade or so.
People in rural areas. I can get an analog telephone line at my home (but I didn't bother; I use my cell phone), but cannot get DSL or ISDN because the telephone switch is too far away. There's no cable TV in the area. There are a couple of WiFi-based ISPs that serve the area, but they're really bad. Satellite is an option for those who don't mind the latency. I'm left with using a cellular modem for my internet connection out here, and even with an outdoor antenna, it's pretty crappy. I'd consider reliable 128k ISDN to be an upgrade. Oh, and if I did bother to have a POTS line out here and tried dial-up, I'd be able to get about 28k on a good day, and less if it's rained recently. My cell phone service out here is kinda spotty, but I still don't bother with a POTS line because I don't use the phone too much and I don't feel like paying yet another phone bill.
Now, if cutting the analog cord meant that the telephone providers would be required by law to build out their digital capabilities to anybody within their previous POTS coverage areas, then that would be great for folks who haven't had any good broadband options so far.
So we (the rest of the world) don't give two shits what sushi means "in the US". We would prefer to use words correctly so that there's common grounds upon which to communicate effectively. You can keep the dog's breakfast of a language that is "American English" thank you very fucking much.
We (people in the US) would appreciate it very much if you (people in the rest of the world) wouldn't make ridiculous generalizations about our language, education and culture based on the ignorant rantings of one Slashdot troll. You see, if we were to follow your standard, I could easily point to your posting and exclaim "See, all of those non-US people are xenophobic retards!" Thankfully, I'm much too polite to do that.
The newbies job was to empty the water and oil traps from the Air Intake system. About 20 litres per day and about 200 mls of oil like fluid(The atmosphere in the workshop back then was a haze of car fumes and dust).
I think the oil in the water condensate was mostly from the compressor's crankcase lubrication (usually splash oil lubrication) leaking past the piston rings, rather than stuff pulled out of the air. I also get a fair amount of oil in my compressor's condensate at home, but it's not exposed to a lot of petroleum fumes.
Also, the water condensation in an air compressor happens in the high pressure side, not the intake side. The compressor shoves a whole bunch of air (including all of the water vapor in that air) into a tank, heating it in the process. As that compressed air cools down, much of the water vapor condenses out as liquid water. That's why workshop air compressors (whether electrically driven or engine driven, and whether they're little hardware store ones or large industrial-sized ones) have tank drains. And the filter/regulator units used near the point of use are almost always designed to separate and collect water, too. And when especially dry air is needed (for example, for spray painting as opposed to running plain old air tools), air driers which use desiccants or even powered refrigeration units are often used... but still on the high pressure side.
I'm not sure how air drying is handled in applications like scuba tank air compressors, though.
Yeah, I tried the Eagle demo, and it seemed terribly primitive. As I recall, it had nothing similar to the autorouter-assisted manual routing modes that the pro-grade packages have, in which you manually route individual nets and the tool automatically follows the mouse around, shoving stuff out of the way and maintaining design rule clearances as it goes. That's the mode I use the most, because much of what I do is stuff that requires careful hand layout, but is still complex enough to require significant help from the autorouter.
Maybe I didn't give Eagle a fair enough evaluation, but using it felt like getting out of a sports car and climbing into a soapbox racer. Even for the somewhat simpler stuff I do for hobby vs. at my day job, I'm just spoiled by the "real" tools.:)
I'd drop $5k out of my own pocket in a heartbeat on something like Altium or PADS if it was available as a native Mac OS X app. I would have gladly bought Eagle (isn't it just around $1k for the maximum configuration?) if I thought I could use it effectively. I'd even consider running something Linux-based in a VM to at least avoid the pain of using WinXP, but I'm not aware of any viable and affordable options right now.
As it is, I use PADS where I work (and thus at home, too), and if I had to buy my own software it'd probably be Altium at $4k with no annual extortion needed to keep it running. Mentor PADS is much more expensive in a comparable configuration, and you need to pay the protection money each year to keep it running. Grrr. I really hate that kind of predatory licensing, but it's very common in high-end EDA tools.
Back on the subject of physical CAD, I really like Cobalt. Granted, it doesn't have the sorts of material analysis features that "real" mechanical eningeers may need, but as an electrical engineer who also does some mechanical design such as custom injection-molded plastics, I love it. Ashlar also has simplified (and less expensive) tools, as well as rental and lease options, which is nice for folks who may just need a tool for a few months for a special project and can't justify dropping the full cost of a perpetual license for their flagship product. Ashlar also has much more reasonable licensing terms than I'm used to in the EDA world, going so far as to openly encourage professional users to bring a copy home in case inspiration strikes at 3AM. And they provide both Mac and Windows versions of their tools. I like encouraging them by giving them free advertising like this.:)
I use Cobalt for 3D CAD on my Mac, and I really like it. I still need to run WinXP in a VM for circuit board CAD, though (I'm presently using Mentor PADS). Aside from the occasional embedded programming tool, PCB CAD is the only thing that forces me to keep WinXP around. I haven't found any professional-grade PCB design tools for the Mac platform, and the few Mac-based PCB tools I've found are way too primitive for my needs.
I don't think that humans will go extinct, at least not before the second coming of Jesus Christ to this earth and then not either. We humans of modern times have come to think that we are in charge of this world even though we did not make it. This world will be destroyed by fire some day, but not until God personally does so. (2Peter 3:7) Contrary to what most people think this day and age, we are not the bosses of this world because this is not our world.
We're discussing science in this thread, not mythology.
And there's another thing that I find personally very cool. Remember, HD 172555 is only 100 light years away. That is extremely close on a galactic scale (our galaxy is 100,000 light years across, so this star is our next door neighbor). It seems incredibly unlikely that this is a rare event in the galaxy, since this happened so close by and so recently.
That's like saying "somebody living within five miles of me was struck by lightning last week, so it seems incredibly unlikely that being struck by lightning is a rare event on this planet". A single sample says nothing about the probability of the event, other than that it's nonzero.
Seriously, there's nothing electronic about this, it's only the mood ring ink connected to a resistance. I mean, it's all right for a home experiment but it's hardly useful.
It's not electronic in much the same way that thermal printers aren't electronic.
I'm nearly 40 and haven't used cursive since high school. How is this a Gen Y thing again?
Same here. I'm 40, and I stopped writing in cursive as soon as my teachers stopped forcing me to. By now, the only thing that I can write in cursive is my own signature, and that's an illegible scrawl that's programmed into my right hand's muscle memory. I cannot think of any situation outside of school where knowing how to write anything other than my signature in cursive was necessary or even helpful. The only cursive I've had to read in at least the last decade has been in letters from my mom, and even those have been replaced by emails.
My early school years predated word processing on personal computers, and learning cursive seemed a lot more annoying than useful at the time. Now that computers and electronic communications have become so ubiquitous, learning to write in cursive seems to me to be as relevant as learning to write with a quill pen. Anybody who has a desire or need to learn such a skill may still do so, but it seems pointless to me to force everybody to use a skill which has become obsolete.
I'm not interested unless the game will let me stage a lunar revolution with the aid of a sentient computer, and throw large rocks at my oppressors on Earth.
Slashdot Mirror
Typo: I meant "It's not even necessary to fully penetrate the armor...".
You might hurt the metal wall, but if the target is itself not metal, it will be quite unharmed.
If you can manage to get a chunk of that metal wall to hit a target on the other side, they may not be quite so unharmed. Many antitank weapons, for example, are designed to cause the interior surface of the tank's armor to spall, such that the resulting flying pieces of the tank's own armor shred the equipment and people inside the tank. It's even necessary to fully penetrate the armor in order to induce spalling (i.e., with HESH ammunition).
Thank you for the compliment on my web page!
I'm generally pretty hardcore libertarian and in favor of much, much smaller government than we presently have, but there are still some things that I think are not best provided by a free market, and which are quite beneficial to most of us: roads and highways, power and water supplies, sewage treatment, fire departments, and basic communications services like POTS. Even police forces, though as the enforcement arm of a government that I think has become way too large and intrusive, they're my least favorite member of that list. ;)
I would think that if you wanted to live out where there were no people, why would you want to be online with them.
Now, that's just silly. We're not just talking about hermits on mountaintops getting their phone lines cut off. My 5-acre property (which was formerly a grapefruit grove, is in an area of citrus groves that are gradually being replaced by residences as the cost of irrigation makes the production unprofitable, and is still zoned as agricultural land) is only 2-3 miles down the road from the nearest tract home neighborhood, is within a short walk from another residential neighborhood of semi-custom homes, and overlooks suburban/urban sprawl that goes all the way to the visible horizon. Yet it's still outside the cable TV coverage area, and its telephone service is provided by a switch which is too far away to provide DSL or even ISDN. There are an awful lot of people who live in areas where analog telephone lines are the only available option for voice or data communications, yet are even less isolated and less rural than my area (which is itself just outside the fringes of city as far as the eye can see).
I moved out here and built a house because I like to have a bit more space around my home than I had when I lived in suburbia, I don't like my neighbors' kids trampling my front yard every day, I don't like hearing my neighbors fighting with their spouses all the time, I like to give my dogs a big yard to run around in, I don't want a homeowner's association telling me what I can and can't do, and I happen to have hobbies which take up a bit more room than a suburban lot can provide (I collect and restore vintage military trucks, and play with ham radio; see my web page if you're curious). But I'm not cut off from humanity, and as an electrical engineer who regularly telecommutes rather than driving to work, I use my (crappy, cellular) data connection quite heavily. And for that matter, I'm online here talking with you right now. ;-)
Now, I'm not saying that the phone companies should be forced and/or subsidized to build out their ISDN/DSL/fiber/etc. infrastructure to serve people like me who chose to give up some public utility access in exchange for a bit more space around their homes, but please understand that a lot more people than just a few isolated hermits would be negatively impacted by pulling the plug on POTS.
Oh, I certainly understand that they would never willingly run new lines out here unless they were forced to. I don't think they would have run the old lines that are already out here if they hadn't been forced to, possibly combined with early settlers out here who paid dearly to have power poles put in. I don't fault the cable companies for not running cable out here, because it clearly wouldn't make economic sense for them to do so. I'm not even suggesting that the telcos should be forced to build out their infrastructure in rural areas like I'm in; in general, I'm quite opposed to most governmental and regulatory intrusion. I'm just stating the simple fact that if the telcos simply cut off analog phone service without building out their digital capabilities where they're not currently available, then a lot of people (though a small percentage of the population) would be cut off. I bring this up only because I suspect that a lot of people reading this thread may not be aware that there are technical limitations which make digital services like ISDN and DSL unavailable in some areas that have POTS service, even today.
I understood the limitations I'd face out here when I moved here, and I decided that I'd rather live on five acres with limited utilities and a wonderful view than an eighth of an acre with the neighbors' annoying kids trampling my front lawn every day, constant traffic noise, always overhearing my neighbors arguing with each other, and so forth. I'm not expecting any handouts. I'll get reasonable broadband when other nearby development happens to drag it into my area. There's continuing growth nearby, and my property will probably be surrounded by suburbs in a decade or so.
who can't get IP?
People in rural areas. I can get an analog telephone line at my home (but I didn't bother; I use my cell phone), but cannot get DSL or ISDN because the telephone switch is too far away. There's no cable TV in the area. There are a couple of WiFi-based ISPs that serve the area, but they're really bad. Satellite is an option for those who don't mind the latency. I'm left with using a cellular modem for my internet connection out here, and even with an outdoor antenna, it's pretty crappy. I'd consider reliable 128k ISDN to be an upgrade. Oh, and if I did bother to have a POTS line out here and tried dial-up, I'd be able to get about 28k on a good day, and less if it's rained recently. My cell phone service out here is kinda spotty, but I still don't bother with a POTS line because I don't use the phone too much and I don't feel like paying yet another phone bill.
Now, if cutting the analog cord meant that the telephone providers would be required by law to build out their digital capabilities to anybody within their previous POTS coverage areas, then that would be great for folks who haven't had any good broadband options so far.
So we (the rest of the world) don't give two shits what sushi means "in the US". We would prefer to use words correctly so that there's common grounds upon which to communicate effectively. You can keep the dog's breakfast of a language that is "American English" thank you very fucking much.
We (people in the US) would appreciate it very much if you (people in the rest of the world) wouldn't make ridiculous generalizations about our language, education and culture based on the ignorant rantings of one Slashdot troll. You see, if we were to follow your standard, I could easily point to your posting and exclaim "See, all of those non-US people are xenophobic retards!" Thankfully, I'm much too polite to do that.
The newbies job was to empty the water and oil traps from the Air Intake system. About 20 litres per day and about 200 mls of oil like fluid(The atmosphere in the workshop back then was a haze of car fumes and dust).
I think the oil in the water condensate was mostly from the compressor's crankcase lubrication (usually splash oil lubrication) leaking past the piston rings, rather than stuff pulled out of the air. I also get a fair amount of oil in my compressor's condensate at home, but it's not exposed to a lot of petroleum fumes.
Also, the water condensation in an air compressor happens in the high pressure side, not the intake side. The compressor shoves a whole bunch of air (including all of the water vapor in that air) into a tank, heating it in the process. As that compressed air cools down, much of the water vapor condenses out as liquid water. That's why workshop air compressors (whether electrically driven or engine driven, and whether they're little hardware store ones or large industrial-sized ones) have tank drains. And the filter/regulator units used near the point of use are almost always designed to separate and collect water, too. And when especially dry air is needed (for example, for spray painting as opposed to running plain old air tools), air driers which use desiccants or even powered refrigeration units are often used... but still on the high pressure side.
I'm not sure how air drying is handled in applications like scuba tank air compressors, though.
Yeah, I tried the Eagle demo, and it seemed terribly primitive. As I recall, it had nothing similar to the autorouter-assisted manual routing modes that the pro-grade packages have, in which you manually route individual nets and the tool automatically follows the mouse around, shoving stuff out of the way and maintaining design rule clearances as it goes. That's the mode I use the most, because much of what I do is stuff that requires careful hand layout, but is still complex enough to require significant help from the autorouter.
Maybe I didn't give Eagle a fair enough evaluation, but using it felt like getting out of a sports car and climbing into a soapbox racer. Even for the somewhat simpler stuff I do for hobby vs. at my day job, I'm just spoiled by the "real" tools. :)
I'd drop $5k out of my own pocket in a heartbeat on something like Altium or PADS if it was available as a native Mac OS X app. I would have gladly bought Eagle (isn't it just around $1k for the maximum configuration?) if I thought I could use it effectively. I'd even consider running something Linux-based in a VM to at least avoid the pain of using WinXP, but I'm not aware of any viable and affordable options right now.
As it is, I use PADS where I work (and thus at home, too), and if I had to buy my own software it'd probably be Altium at $4k with no annual extortion needed to keep it running. Mentor PADS is much more expensive in a comparable configuration, and you need to pay the protection money each year to keep it running. Grrr. I really hate that kind of predatory licensing, but it's very common in high-end EDA tools.
Back on the subject of physical CAD, I really like Cobalt. Granted, it doesn't have the sorts of material analysis features that "real" mechanical eningeers may need, but as an electrical engineer who also does some mechanical design such as custom injection-molded plastics, I love it. Ashlar also has simplified (and less expensive) tools, as well as rental and lease options, which is nice for folks who may just need a tool for a few months for a special project and can't justify dropping the full cost of a perpetual license for their flagship product. Ashlar also has much more reasonable licensing terms than I'm used to in the EDA world, going so far as to openly encourage professional users to bring a copy home in case inspiration strikes at 3AM. And they provide both Mac and Windows versions of their tools. I like encouraging them by giving them free advertising like this. :)
AutoCad would be nice to have on Mac OS X.
I use Cobalt for 3D CAD on my Mac, and I really like it. I still need to run WinXP in a VM for circuit board CAD, though (I'm presently using Mentor PADS). Aside from the occasional embedded programming tool, PCB CAD is the only thing that forces me to keep WinXP around. I haven't found any professional-grade PCB design tools for the Mac platform, and the few Mac-based PCB tools I've found are way too primitive for my needs.
...If humans do go extinct,...
I don't think that humans will go extinct, at least not before the second coming of Jesus Christ to this earth and then not either. We humans of modern times have come to think that we are in charge of this world even though we did not make it. This world will be destroyed by fire some day, but not until God personally does so. (2Peter 3:7) Contrary to what most people think this day and age, we are not the bosses of this world because this is not our world.
We're discussing science in this thread, not mythology.
That's a pretty neat trick, getting the radiation to go everywhere 'outside' but not 'inside'.
It was a neat trick when the trick was invented in 1836, but it's pretty mundane now.
http://en.wikipedia.org/wiki/Faraday_cage
Although hopefully those kids smart enough to figure that out would also be smart enough not to shop lift.
That presumes a correlation between intelligence and honesty.
TFA wrote:
That's like saying "somebody living within five miles of me was struck by lightning last week, so it seems incredibly unlikely that being struck by lightning is a rare event on this planet". A single sample says nothing about the probability of the event, other than that it's nonzero.
Seriously, there's nothing electronic about this, it's only the mood ring ink connected to a resistance. I mean, it's all right for a home experiment but it's hardly useful.
It's not electronic in much the same way that thermal printers aren't electronic.
Soychemist accidentally a noun.
I'm nearly 40 and haven't used cursive since high school. How is this a Gen Y thing again?
Same here. I'm 40, and I stopped writing in cursive as soon as my teachers stopped forcing me to. By now, the only thing that I can write in cursive is my own signature, and that's an illegible scrawl that's programmed into my right hand's muscle memory. I cannot think of any situation outside of school where knowing how to write anything other than my signature in cursive was necessary or even helpful. The only cursive I've had to read in at least the last decade has been in letters from my mom, and even those have been replaced by emails.
My early school years predated word processing on personal computers, and learning cursive seemed a lot more annoying than useful at the time. Now that computers and electronic communications have become so ubiquitous, learning to write in cursive seems to me to be as relevant as learning to write with a quill pen. Anybody who has a desire or need to learn such a skill may still do so, but it seems pointless to me to force everybody to use a skill which has become obsolete.
Large commercial trucks do have brakes on all axles, including the trailer axles. They're generally air brakes.
Wipe that shit-eating grin off your face.
Well, that would explain why I've been smelling pranks for the last 83 hours.
I smell a prank.
Oddly, the prank smells a lot like asparagus.
of his wife.
+1!!
Hey, throw in some pics of Angelina and Kristen, too, while you're at it. For science...
If it was an honest test, they would have asked him about Kristen Bell.
I'm not interested unless the game will let me stage a lunar revolution with the aid of a sentient computer, and throw large rocks at my oppressors on Earth.
I actually uninstalled google earth because of this.
Same here, though I restored an older version from my Time Machine backup.