Might want to doublecheck your facts. GPS knows about the time difference, which isn't 12 seconds either btw, it is 19. The complete time message, which includes the correct amount, is broadcast every 12.5 minutes, so its possible that when you cold boot a gps, it will be off some amount of time before that is received. (12 seconds is common for lots of GPS engines, they have built in correct for the first 7 seconds of correction, but need the updated time message after connection to get the rest of the update)
Outage last week? Wow, what happened to ever checking the dates, yes, April 17th, of 2007!!! REALLY old news... I've got a crackberry, had one for forever, now have a non-presidential edition 8830. I would never give it up, in fact, I probably would give up a firstborn for it.
by third world i'm assuming you mean US, in particular any government force with a gun, either your local PD SWAT team or certain branches of our military government...
wow, can she whine any more? Laptop is owned by her employer... It was bought for her use, NOT for her as a personal item. So now she gets her panties in a bunch when she realizes her employer has the right to do whatever they want with that computer. Guess what, it is theirs! Just because you scattered your useless garbage all over the HD doesn't make it yours. If you want privacy, buy a personal laptop, and then it becomes much, much harder for someone to take a look at it.
you do realize most telescopes have both mirrors and lenses right? a pure newtonian onto a camera/ccd is only mirrors, but every other design utilizes lenses.
it is fairly easy to set up a tracking telescope mount (with ccd) for under $5000 that could do this quite nicely. that of course means it is optical, so clouds would be a problem.
using COTS stuff it is fairly easy to even track satellites, which move across the sky at a MUCH faster speed then a jet at altitude. go out on the net and look at some of the amazing pics people have gotten of the STS and station using this method.
and you call yourself a slashdotter? every major OS, windows included, makes changing your MAC trivially easy. besides, you aren't exposing it to the outside world, only the device it is connected to and nothing beyond that.
maybe you haven't used ssh before, but when you tunnel stuff over ssh you no longer even care if vnc has a password! the ssh tunnel drops you behind the firewall or directly on the console of the machine, all traffic goes over ssh, which means you already have logged in with a valid username/password.
sorry, but you have ZERO idea what you are talking about!! (but this is slashdot i guess...)
rc planes run on 72mhz, the cheap ones run on 27mhz. (right next to CB radio) Ground RC runs on 75mhz, and also shares the 27mhz chunk. Ham band allows RC use on 50 and 53 mhz. guess what, NONE are close to your 35mhz.
as usual wiki has a good reference and also a primer about frequencies you can read up on.
Just one thing to point out, every single high end Canon digital SLR camera uses CMOS sensors. (at least the lower end up to prosumer slr's do, can't afford to buy a pro canon digital so I haven't bothered investigating them, but I'm fairly sure they are cmos also)
CMOS CAN be result in quality that surpasses CCD, all while using far lower power and generating much less heat.
#1: there is a very, very big difference between harassing someone, and letting a public official know what you think of the situation. Personally I think he SHOULD realize that he was wrong in this matter, and by the response he has given so far he still is not even willing to come close to accepting any blame. Yes, typical for a politician, but that is the reason they are open to public comments and such. (yes, as a city manager it is possible he is not elected, but appointed by the mayor or hired by the council, but same thing... elected officials at some point)
#2: Nope, it was already public on their website before this came, so it is is full and open to spammers already.
#3: Probably, or switch to something way more intelligent like a comment form. Nobody posts actual live personal emails on the web anymore for a reason without a massive spam engine behind it.
Looks like he managed to figure out how to edit the frontpage site so that it no longer shows his email, so if any slashdot user wishes to express their opinions on this matter the corresponding public official, here they are!
why does everyone have to stick to the old school tried and true method of computer room cooling, in which you HAVE TO cool down the hot air. how about this... suck outside air from one end of the container, filter it, cool it if needed, and then exhaust it out the other end. It makes absolutely no sense to cool hot air when you might have an unlimited supply just outside your door. In many climates your total cooling bill is going to be a small fraction of what it was in the old school scenario.
here are two reasons why it is VERY, VERY bad. if the patent exists, there is absolutely no reason for any person to develop, you are just doing R&D work for someone else for free. That happens for the life of the patent, and after it expires (IF it ever does as the current rate), there still is no incentive to develop it, since it is now public domain if you do, free to be copied by anyone else.
the trick is, at least if you run linux as your host, is that linux kernel will often grab the device before vmware has a chance. this happens to me all the time on usb hard drives/keychains. a simple rmmod fixes that right up though...
The people who vaccum prarie dog warrens to transplant them are actying just as rashly.
You need to research WHY prairie dogs are vacuumed up and usually sold in the asian market... the SOLE reason is because a prairie dog town can cost the lives of many, many cattle if they build the town on pasture land. cattle come along and step in the holes, result in a nice clean snap of the cows leg(s). prairie dogs will also strip a landscape bare of almost all vegetation in the vicinity of their town...
other uses
on
Ask Sid Meier
·
· Score: 1, Interesting
One quick question... Have you explored the possiblity of actually taking one of your great sim game engines and using it in a 'real world' type environment. (i.e. a city planner laying out their city in simcity 4000) Obviously things like an alien attack wouldn't be part of it, but with some changes I imagine it could make a relatively accurate sim. Your thoughts on it?
FWIW, I type with my cokehead-style thumbnail on screen faster than 90% of people with normal keyboards.
Almost believed your post until you went a little too far with the last line.
hmm, according to this link, 90% would put you around 80-90 words/minute... Congratulations on your superhuman capabilities with that one thumb! you shouldn't be typing on slashdot, you should be under study by some 3 letter government department.
sorry, should have clarified... we buy from ibm, we, as in consumers, pays ibm, which in turn pays the engineers... (although ibm gets a very large chunk of government money also)
ok, so they used an ipod as an external usb hard drive and booted knoppix with it. we pay researchers to do stuff like this??? there is absolutely nothing amazing/revolutionary/interesting about that...
next week, stay tuned for when they are going to install windows on a 1 gb usb keydrive!!
great, you do all this to minimize your bill, then post on slashdot?!?! server is already slow, I imagine the meter is spinning like a top right now...
I'm a student, with limited funds and a cheap house without air conditioning. To avoid dying this summer, I've built a primitive air conditioner. It's a basic heat pump, using water as the medium. You'll probably need to fiddle a bit with the dimensions of the supplies based on your resources and preferences.
Materials:
Salvage from around the house a:
* large fan
* garbage can
Grab from Home Depot:
* 25 feet of 1/8 inch outer diameter (OD) copper tubing (~ $14)
* 20 feet of 1/8 inch inner diameter (ID) vinyl tubing (~ $6)
* a package of zipties (~ $3)
* 2 small hose clamps (~ $1)
Here's the basic setup. The garbage can is filled with ice water, which is then fed by gravity (a siphon) through the copper tubing coiled along the back of the fan. The hot air passing through the tubing warms the cold water, cooling the air. Waste warm water is then pumped outside.
The system will cool an average room to a comfortable level in approximately 15-20 minutes. Depending on flow rate, a full bucket of water will last approximately 1-3 hours.
It doesn't rip quite as hard as central air, but for less than $30 CAD I'm not complaining.
The main factor affecting the performance is the temperature of incoming water. Cool water will work, but ice water will result in a cooler room, quicker.
Here's what the fan looks like from the back. The biggest issue in construction was uncoiling 25 feet of copper tubing in a 15 by 20 room. Just be patient and don't attempt to bend the copper too severly, it'll fold over on itself and you've effectively chopped your nice copper tubing in two.
When coiling the copper into a spiral on the back of the fan, I started in the middle and put zipties every 15-30 cm (6-12 inches). Use your discretion, you want to preserve the spiral shape and keep the tubing as close to the metal mesh as you can. If you're a bit crazy, sand the paint off the back to improve heat transfer from the metal mesh.
It doesn't really matter how it looks as long as it's reasonably spaced out and consistent. A hint for construction: prebend your zipties into a J shape. Then you can hook them easily in and back out of the metal mesh on the back of the fan. I'd suggest cutting off any extra plastic once you've got them on.
If you look closely, you can see the condensation from the incoming icewater, but no condensation on the tubing leading out. This is perfect, as it means that heat is being transferred from the room to the water.
Once you've got the copper tubing coiled, the rest is easy. Cut your vinyl tubing into 2 pieces, with one about twice the length of the other (one piece 6-7 feet, other piece 13-14 feet).
Attach the shorter piece to the incoming side of the copper tubing. It should slide relatively easily over the copper, but be snug. Attach the hose clamp and tighten. Following a similar procedure, attach the longer piece to the outgoing side of the copper tubing. (I don't believe it really matters whether you feed cold water from the inside or the outside. It's up to you to run some numbers.)
Submerge the shorter end of the vinyl tubing in the garbage can (washed and clean). I suggest weighing down the end of the tube, to avoid it drawing in air and stopping the system. I used twist-ties to attach a thin rock to the end. If you have fishing weights, I would suggest using those.
Next, hang the longer tubing out your window. For the gravity pump to work, the end of the tubing must be below the water level of your garbage can, plus an allowance for head loss in the pipe. Just to be safe, get it as low as you can. I'd suggest arranging it so the waste water will feed into a garden, but student ghettos don't have gardens so in this picture it's being fed into a drain by the basement.
I had to poke a small hole in my screen for this to work.
To get the system started, make sure the vinyl tubing in the ice water is completely submerged. Then,
Slashdot Mirror
Might want to doublecheck your facts. GPS knows about the time difference, which isn't 12 seconds either btw, it is 19. The complete time message, which includes the correct amount, is broadcast every 12.5 minutes, so its possible that when you cold boot a gps, it will be off some amount of time before that is received. (12 seconds is common for lots of GPS engines, they have built in correct for the first 7 seconds of correction, but need the updated time message after connection to get the rest of the update)
Outage last week? Wow, what happened to ever checking the dates, yes, April 17th, of 2007!!! REALLY old news... I've got a crackberry, had one for forever, now have a non-presidential edition 8830. I would never give it up, in fact, I probably would give up a firstborn for it.
by third world i'm assuming you mean US, in particular any government force with a gun, either your local PD SWAT team or certain branches of our military government...
wow, can she whine any more? Laptop is owned by her employer... It was bought for her use, NOT for her as a personal item. So now she gets her panties in a bunch when she realizes her employer has the right to do whatever they want with that computer. Guess what, it is theirs! Just because you scattered your useless garbage all over the HD doesn't make it yours. If you want privacy, buy a personal laptop, and then it becomes much, much harder for someone to take a look at it.
you do realize most telescopes have both mirrors and lenses right? a pure newtonian onto a camera/ccd is only mirrors, but every other design utilizes lenses.
using COTS stuff it is fairly easy to even track satellites, which move across the sky at a MUCH faster speed then a jet at altitude. go out on the net and look at some of the amazing pics people have gotten of the STS and station using this method.
and you call yourself a slashdotter? every major OS, windows included, makes changing your MAC trivially easy. besides, you aren't exposing it to the outside world, only the device it is connected to and nothing beyond that.
only RealVNC is affected, which is a crappy vnc anyway. TightVnc and better yet UltraVNC are far ahead of RealVNC, neither of which are affected btw.
maybe you haven't used ssh before, but when you tunnel stuff over ssh you no longer even care if vnc has a password! the ssh tunnel drops you behind the firewall or directly on the console of the machine, all traffic goes over ssh, which means you already have logged in with a valid username/password.
rc planes run on 72mhz, the cheap ones run on 27mhz. (right next to CB radio) Ground RC runs on 75mhz, and also shares the 27mhz chunk. Ham band allows RC use on 50 and 53 mhz. guess what, NONE are close to your 35mhz.
as usual wiki has a good reference and also a primer about frequencies you can read up on.
https://www.nwa.com/cgi-bin/res_info.pro
CMOS CAN be result in quality that surpasses CCD, all while using far lower power and generating much less heat.
#2: Nope, it was already public on their website before this came, so it is is full and open to spammers already.
#3: Probably, or switch to something way more intelligent like a comment form. Nobody posts actual live personal emails on the web anymore for a reason without a massive spam engine behind it.
city manager at citymgr@cityoftuttle.org,
mayor at mayor@cityoftuttle.org.
Enjoy!
why does everyone have to stick to the old school tried and true method of computer room cooling, in which you HAVE TO cool down the hot air. how about this... suck outside air from one end of the container, filter it, cool it if needed, and then exhaust it out the other end. It makes absolutely no sense to cool hot air when you might have an unlimited supply just outside your door. In many climates your total cooling bill is going to be a small fraction of what it was in the old school scenario.
here are two reasons why it is VERY, VERY bad. if the patent exists, there is absolutely no reason for any person to develop, you are just doing R&D work for someone else for free. That happens for the life of the patent, and after it expires (IF it ever does as the current rate), there still is no incentive to develop it, since it is now public domain if you do, free to be copied by anyone else.
the trick is, at least if you run linux as your host, is that linux kernel will often grab the device before vmware has a chance. this happens to me all the time on usb hard drives/keychains. a simple rmmod fixes that right up though...
One quick question... Have you explored the possiblity of actually taking one of your great sim game engines and using it in a 'real world' type environment. (i.e. a city planner laying out their city in simcity 4000) Obviously things like an alien attack wouldn't be part of it, but with some changes I imagine it could make a relatively accurate sim. Your thoughts on it?
the LEAST you could have done is at least included a Jessica Alba bikini image link. think man think!!
hmm, according to this link, 90% would put you around 80-90 words/minute... Congratulations on your superhuman capabilities with that one thumb! you shouldn't be typing on slashdot, you should be under study by some 3 letter government department.
sorry, should have clarified... we buy from ibm, we, as in consumers, pays ibm, which in turn pays the engineers... (although ibm gets a very large chunk of government money also)
next week, stay tuned for when they are going to install windows on a 1 gb usb keydrive!!
great, you do all this to minimize your bill, then post on slashdot?!?! server is already slow, I imagine the meter is spinning like a top right now...
I'm a student, with limited funds and a cheap house without air conditioning. To avoid dying this summer, I've built a primitive air conditioner. It's a basic heat pump, using water as the medium. You'll probably need to fiddle a bit with the dimensions of the supplies based on your resources and preferences.
Materials:
Salvage from around the house a:
* large fan
* garbage can
Grab from Home Depot:
* 25 feet of 1/8 inch outer diameter (OD) copper tubing (~ $14)
* 20 feet of 1/8 inch inner diameter (ID) vinyl tubing (~ $6)
* a package of zipties (~ $3)
* 2 small hose clamps (~ $1)
Here's the basic setup. The garbage can is filled with ice water, which is then fed by gravity (a siphon) through the copper tubing coiled along the back of the fan. The hot air passing through the tubing warms the cold water, cooling the air. Waste warm water is then pumped outside.
The system will cool an average room to a comfortable level in approximately 15-20 minutes. Depending on flow rate, a full bucket of water will last approximately 1-3 hours.
It doesn't rip quite as hard as central air, but for less than $30 CAD I'm not complaining.
The main factor affecting the performance is the temperature of incoming water. Cool water will work, but ice water will result in a cooler room, quicker.
Here's what the fan looks like from the back. The biggest issue in construction was uncoiling 25 feet of copper tubing in a 15 by 20 room. Just be patient and don't attempt to bend the copper too severly, it'll fold over on itself and you've effectively chopped your nice copper tubing in two.
When coiling the copper into a spiral on the back of the fan, I started in the middle and put zipties every 15-30 cm (6-12 inches). Use your discretion, you want to preserve the spiral shape and keep the tubing as close to the metal mesh as you can. If you're a bit crazy, sand the paint off the back to improve heat transfer from the metal mesh.
It doesn't really matter how it looks as long as it's reasonably spaced out and consistent. A hint for construction: prebend your zipties into a J shape. Then you can hook them easily in and back out of the metal mesh on the back of the fan. I'd suggest cutting off any extra plastic once you've got them on.
If you look closely, you can see the condensation from the incoming icewater, but no condensation on the tubing leading out. This is perfect, as it means that heat is being transferred from the room to the water.
Once you've got the copper tubing coiled, the rest is easy. Cut your vinyl tubing into 2 pieces, with one about twice the length of the other (one piece 6-7 feet, other piece 13-14 feet).
Attach the shorter piece to the incoming side of the copper tubing. It should slide relatively easily over the copper, but be snug. Attach the hose clamp and tighten. Following a similar procedure, attach the longer piece to the outgoing side of the copper tubing. (I don't believe it really matters whether you feed cold water from the inside or the outside. It's up to you to run some numbers.)
Submerge the shorter end of the vinyl tubing in the garbage can (washed and clean). I suggest weighing down the end of the tube, to avoid it drawing in air and stopping the system. I used twist-ties to attach a thin rock to the end. If you have fishing weights, I would suggest using those.
Next, hang the longer tubing out your window. For the gravity pump to work, the end of the tubing must be below the water level of your garbage can, plus an allowance for head loss in the pipe. Just to be safe, get it as low as you can. I'd suggest arranging it so the waste water will feed into a garden, but student ghettos don't have gardens so in this picture it's being fed into a drain by the basement.
I had to poke a small hole in my screen for this to work.
To get the system started, make sure the vinyl tubing in the ice water is completely submerged. Then,