People moving inside the ISS cause small newtonian action/reaction movements of the station itself.
When you're trying to aim an optical system accurately, people moving around the ISS would cause totally unacceptable vibrations. Not to mention station orientation thrusters and the occasional docking maneuver by visiting spacecraft
To put it in perspective, imagine trying to compose a picture and while someone is smacking your camera with a nerf hammer(people moving) and sledge hammers(docking maneuvers). It's just not gonna happen.
People moving inside the ISS cause small newtonian action/reaction movements of the station itself.
When you're trying to aim an optical system accurately, people moving around the ISS would cause totally unacceptable vibrations. Not to mention station orientation thrusters and the occasional docking maneuver by visiting spacecraft
To put it in perspective, imagine trying to compose a picture and while someone is smacking your camera with a nerf hammer(people moving) and sledge hammers(docking maneuvers). It's just not gonna happen.
I believe his point was not that a thief is unwilling to kill someone, but that sticking up a cafe where people might have guns is *unhealthy* for the thief!
Sort of like the poor success ratio of robbers who try to stick up a bar patronized by off-duty police. It's just not effective to wave around a gun when everyone else has them as well.
It's in the nature of politicians to sell themselves to the public in hopes of getting reelected. In order to sell themselves, they spend truly obscene amounts of money to ensure full media coverage.
You don't really think they are going to sign a law which prevents them from bombarding people with their public views *with little to no cost*?
Of course political spam will be exempt... just like the phone solicitation at dinnertime around election time. Even if you are on an opt-out list, you'll still hear from every tom/jane/harry who is running for dogcatcher/president/mayor.
It's purely a matter of enlightened self interest!
I suspect the bit about Hiram and the reactor vessel seals is talking about how to move the Control Rod Drive Mechanisms (ya know... the control rods that absorb neutrons to determine reactor temperature...) without getting leakage past the seals. The nuclear industry uses a fully welded seal for this, with magnetic coupling between the motor windings (outside the pressure boundary) and the mechanical portions of the motor (inside the pressure boundary).
Now the main shaft seals for the propeller, those start to leak like sieves very shortly after installation. Clever design, but in a very harsh environment which trashes them. It's difficult to make a reliable seal for a rotating cylinder 3 feet in diameter with a thousand psi of differential pressure seawater. The close tolerances involved pretty much prevent the required freedom of motion between the moving parts.
As a fellow Easystreet customer, I'm in full agreement with you. I've been an Easystreet customer for 4 years, and their customer service is excellent. I had some intermittent troubles with my DSL line (it took about a year until the issue was finally traced to a loose connection (thanks verizon!) several thousand feet up the cable from my apartment).
Easystreet techs were always available to help with troubleshooting of the line, and I don't recall ever waiting more than a minute to speak with a tech. Having previously dealt with a nationally known ISP (thanks for nothing, Prodigy!), the responsiveness of Easystreet is refreshing.
About 6 months ago, they did have some issues with a router, but John Beaston (one of their VPs) sent out regular updates as to the status of troubleshooting and expected outages. It was nice to hear not only that they were having problems, but what they were doing to fix it. None of that "Our network is flawless. It must be a problem with your computer. Please reboot and call someone who cares. ThankYouVeryMuchYouAreAValuedCustomer. PleaseWaitForTheNextAvailableAttendant."
Your comments about their TOS are quite right... just look at their Enthusiast package
I haven't seen too many other companies with such liberal terms. Basically you can do what you want as long as you act responsibly. No open relays, no sending spam, or other antisocial behavior. Otherwise, have fun.
I was thinking that this could be applied to the current problem of decreasing depth of focus in high NA steppers used for the lithography of microprocessors. In short, as we decrease the size of the critical dimensions of a microprocessor circuit the numerical aperture required increases. However, the depth of focus decreases proportional to the *square* of the NA.
Unfortunately, the lens design appears to require digital processing to recover the depth-of-focus information which is shifted spatially. Photoresist imaging is pretty much an as-patterned process, so unless the decoding can be accomplished with an optical transform (done by corrective lenses) before reaching the photoresist, microlithography will continue to be limited by depth of focus. Darn.
http://terraserver.homeadvisor.msn.com/image.aspx? t=1&s=10&x=2926&y=23829&z=18&w =2 is a nice picture of the kesselring nuclear test site just west of Saratoga Springs, NY. It's amazing how many local residents are totally unaware of how close they live to actual operational nuclear power plants. I suppose that's true of most other similar sites...
The site itself is at the end of a country road, with increasingly severe warning signs as you approach. Cool place to visit, but don't try to sneak in. You won't make it, especially in todays high-tension environment.
As with most classified government research installations, they do have some cool toys to play with, though.
In the junior enlisted ranks of the Navy, there are three main types (there are others, but these are the most common ones): Airmen, who work on airplanes; Firemen, who work in the engineroom and machinery spaces; and seamen, who work in all the other general ratings. Thus, when someone in the Navy says that they are a fireman, odds are that they are a junior enlisted person who hasn't gotten assigned to a permanent rating (job) yet. Once they get promoted a few times, they stop being a fireman and become a petty officer.
Of course, saying you're a fireman is much more impressive than saying that you spend your days chipping paint and mopping floors...
Phase shift masking techniques have been in use for several years, and involve changing the transmissive properties of the reticle/mask material so as to shift the phase of light passing through select portions of the reticle relative to the clear areas. This process is done purely through mask design.
The article involves a totally different concept, in which they are controlling the mask-to-wafer distance so as to control the phase of the light hitting the photoresist. Control of that mask to wafer distance in current technology is not rigidly controlled. It's considered fine to have the reticle in the same rough focal plane as the wafer, but not controlled tightly enough to keep phase polarity intact throughout the exposure field.
It's an interesting technology demonstration, but I'm not convinced that it's adaptable to a manufacturing environment due to the amount of flatness variation on a local exposure field. Wafers may look flat, but on the transistor gate level, it's very lumpy. Sure, some areas of the field will be in phase, but other areas won't be in the correct phase spoiling the chances of getting a working circuit.
It's easy to get a single transistor scaled to incredibly small sizes. It's another matter entirely to get an entire exposure field of consistently small devices, all of which work.
"Your Honor, despite repeated warnings as to the inadequacy of the windows in her vehicle to withstand external impacts, the defendant continued to refuse to install more secure windows! It was only a matter of time until the window was shattered by a poor misguided child who innocently threw a rock! Also, the door locks were clearly inadequate, as reaching through the broken window and pulling the door handle allowed free entry to the interior of the car. Simple application of a screwdriver to the ignition switch released full control of the vehicle to the occupant.
"I call for summary judgement against the defendent in that her actions in failing to secure her vehicle were willfully negligent, and ask the maximum penalty be applied, along with punitive to cover the cost of repairs to the storefront damages by her car. Also, we request punitive damages for her contributing to the delinquency of the minor who stole her car.
"We need to send a clear message that failing to take action to fortify windows is intolerable!"
I'm in Portland, and I have good service with Easystreet.com. With their Enthusiast package, they are fine with servers, static IP, etc. Once I did have to wait almost 30 seconds for a tech to answer the line, but other than that the phone is answered by a real person within a couple of rings. Good people, too.
The parent comment isn't really off-topic. Reading through the manifesto, it directly relates to companies not allowing personal interaction by their employees. Good website.
Hmm, every home has (at least) 1 or 2 smoke detectors. If you look at the full name, you'll find it's an *ionizing* detector. If you pull the top cover off, you'll see a sticker (sometimes it's inconspicuously embossed faintly into the plastic bezel material) which warns that the detector contains ***RADIOACTIVE MATERIAL***. Americium 241 to be specific. And we throw these things away with wild abandon. What about the children????
Seriously, it's not much of a concern... see http://www.atsdr.cdc.gov/toxprofiles/tp156-c2.pdf for a reference.
But it makes a great "scare the masses" item at parties. "Did you know you have 'radioactive material' right here in *this very room*!"
Slashdot Mirror
People moving inside the ISS cause small newtonian action/reaction movements of the station itself. When you're trying to aim an optical system accurately, people moving around the ISS would cause totally unacceptable vibrations. Not to mention station orientation thrusters and the occasional docking maneuver by visiting spacecraft To put it in perspective, imagine trying to compose a picture and while someone is smacking your camera with a nerf hammer(people moving) and sledge hammers(docking maneuvers). It's just not gonna happen.
When you're trying to aim an optical system accurately, people moving around the ISS would cause totally unacceptable vibrations. Not to mention station orientation thrusters and the occasional docking maneuver by visiting spacecraft
To put it in perspective, imagine trying to compose a picture and while someone is smacking your camera with a nerf hammer(people moving) and sledge hammers(docking maneuvers). It's just not gonna happen.
Sort of like the poor success ratio of robbers who try to stick up a bar patronized by off-duty police. It's just not effective to wave around a gun when everyone else has them as well.
I'd still be on Easystreet (get it???) except I moved out of DSL range.
Easystreet rocks.
To reduce ping, I use high-octane gas (the expensive stuff. amazing how reducing ping in computers or cars costs more money.
Not his best work, but thought provoking.
Now it's just a strongly recommended idea.
Linux is free... as in beer. However, it's tough to find good free beer.
Network printing over SSH Text-to-speech queueing (print your
Hmm if I were going to list the fun things I've done with backends, it probably wouldn't include using printers...
You don't really think they are going to sign a law which prevents them from bombarding people with their public views *with little to no cost*?
Of course political spam will be exempt... just like the phone solicitation at dinnertime around election time. Even if you are on an opt-out list, you'll still hear from every tom/jane/harry who is running for dogcatcher/president/mayor.
It's purely a matter of enlightened self interest!
I'd buy that for a dollar!!!
Hmm, the proper response around these parts would be "I'm blind in one eye and have no depth perception, you insensitive clod!"
Now the main shaft seals for the propeller, those start to leak like sieves very shortly after installation. Clever design, but in a very harsh environment which trashes them. It's difficult to make a reliable seal for a rotating cylinder 3 feet in diameter with a thousand psi of differential pressure seawater. The close tolerances involved pretty much prevent the required freedom of motion between the moving parts.
sigh.
Some people just have no sense of humor.
Easystreet techs were always available to help with troubleshooting of the line, and I don't recall ever waiting more than a minute to speak with a tech. Having previously dealt with a nationally known ISP (thanks for nothing, Prodigy!), the responsiveness of Easystreet is refreshing.
About 6 months ago, they did have some issues with a router, but John Beaston (one of their VPs) sent out regular updates as to the status of troubleshooting and expected outages. It was nice to hear not only that they were having problems, but what they were doing to fix it. None of that "Our network is flawless. It must be a problem with your computer. Please reboot and call someone who cares. ThankYouVeryMuchYouAreAValuedCustomer. PleaseWaitForTheNextAvailableAttendant."
Your comments about their TOS are quite right... just look at their Enthusiast package
I haven't seen too many other companies with such liberal terms. Basically you can do what you want as long as you act responsibly. No open relays, no sending spam, or other antisocial behavior. Otherwise, have fun.
Unfortunately, the lens design appears to require digital processing to recover the depth-of-focus information which is shifted spatially. Photoresist imaging is pretty much an as-patterned process, so unless the decoding can be accomplished with an optical transform (done by corrective lenses) before reaching the photoresist, microlithography will continue to be limited by depth of focus. Darn.
Thanks to $$$$$exyGal for the link!
Silly link busting slashdot code... Here's the link to the kesselring site overhead imagery.
The site itself is at the end of a country road, with increasingly severe warning signs as you approach. Cool place to visit, but don't try to sneak in. You won't make it, especially in todays high-tension environment.
As with most classified government research installations, they do have some cool toys to play with, though.
Of course, saying you're a fireman is much more impressive than saying that you spend your days chipping paint and mopping floors...
The article involves a totally different concept, in which they are controlling the mask-to-wafer distance so as to control the phase of the light hitting the photoresist. Control of that mask to wafer distance in current technology is not rigidly controlled. It's considered fine to have the reticle in the same rough focal plane as the wafer, but not controlled tightly enough to keep phase polarity intact throughout the exposure field.
It's an interesting technology demonstration, but I'm not convinced that it's adaptable to a manufacturing environment due to the amount of flatness variation on a local exposure field. Wafers may look flat, but on the transistor gate level, it's very lumpy. Sure, some areas of the field will be in phase, but other areas won't be in the correct phase spoiling the chances of getting a working circuit.
It's easy to get a single transistor scaled to incredibly small sizes. It's another matter entirely to get an entire exposure field of consistently small devices, all of which work.
Interesting article...
"I call for summary judgement against the defendent in that her actions in failing to secure her vehicle were willfully negligent, and ask the maximum penalty be applied, along with punitive to cover the cost of repairs to the storefront damages by her car. Also, we request punitive damages for her contributing to the delinquency of the minor who stole her car.
"We need to send a clear message that failing to take action to fortify windows is intolerable!"
JMHO, YMMV
Damn, I wish I had some moderation points now.
Seriously, it's not much of a concern... see http://www.atsdr.cdc.gov/toxprofiles/tp156-c2.pdf for a reference.
But it makes a great "scare the masses" item at parties. "Did you know you have 'radioactive material' right here in *this very room*!"