The quality of astronomy grade CCD chips is so far beyond anything you've seen in commercial digital cameras, and so much more expensive. I've used a 2048x2048 chip, cost on the order of 50k, and keep in mind when they sell it to you you don't get anything but the chip, you have to build the rest yourself. Oh yeah, I wouldn't be waiting around to make a webcam, the single readout time for the full chip was about 2 minutes. Luckily this particular chip was recently upgraded to quad readout.
My roommate got two DirectTivo boxes and one dish for about 200 bucks, and now we have around 70 hours of recording time, and can record up to 4 shows at once (Dual LNB, two shows can be recorded at the same time on each box). Unfortunately our apartment complex won't let us permanently install anything, so we just "placed" the dish on our porch pointed in the right direction. Only problem is when the wind picks up and moves the dish.
One of the coolest low tech experiments I've done is measure the speed of light using a machinist's ruler. That's one of those metal rulers with the marks etched on the surface. By hitting the etched marks with a laser at a very low angle you can measure the speed of light using the diffraction pattern formed.
Yes they asphyxiated. Their deaths were caused by the inhalation of the fumes from the burning surfaces in the capsule. The only part of their bodies that were burned were the exposed surfaces (hands, faces) under their suits they were completely unscathed.
Its very doubtful that there is any correlation between this nebula and egypt. The structure of the Horsehead is impossible to see with the naked eye. Even with a fairly good telescope on a very dark night, you can only see the outline, with no detail. Long exposure photography and some very large telescopes are needed to get any sort of good image of the nebula.
You're right, if you don't you'll get a double image from the other eye superimposed with the image from the screen. This would probably be very distracting when trying to read small words on a small screen.
I go to UVA and this program was put to use and modified to check term papers for identical strings of words greater than 6. Two semesters ago about 145 Honor Charges were brought against students in a single class, leading to quite a few expulsions. The program isn't perfect, since it still raises a flag for quotes and bibiography, but it seems to work in exposing an existing problem.
I think a good solution to this might be to put disclaimers on free software. Something like "This software has only been tested on X and Y hardware, and can not be guarenteed to work" or something like that. It would remove much of the liability for free software developers, and most users of the software already understand the risks anyway. The best part is, Microsoft would never consider putting a warning on their product stating "This product has been proven to be insecure and you are at risk by installing it." That would pretty much be suicide for the software.
Chile is probably chosen not only for its economic stability, but also the fact that most observatories there go up in the Atacama Plateau. Its pretty dry there (hasn't had any measurable rainfall in over 400 years). Plus no rebel faction is going to want to climb up a 16,000 foot mountain, which also happens to be a desert, to steal some radio recievers.
Not to toot my own horn, but here's a nice(in my opinion) extragalactic picture. I'm an undergrad and my lab group and I took these this past semester. The two images are of the same galaxy, just different contrast settings to hilight different features. If it weren't for the odd shape, they'd be good desktop pics.
NGC 660
Here at my apartment, my roommates and I have DirecTiVo and its great. There is definitely no drop in the picture quality for recorded programming. One of the best features is the ability to pause live TV for up to 30 minutes. Basically, you see a show you want to watch, pause it, troll Slashdot for 30 minutes, and then go back and watch the show, fast forwarding through all the commercials. What a wonderful world we live in.
Cleaning up near earth space would be extrememly difficult and costly. Going out at grabbing just one or two dead satellites or pieces of junk would require a separate mission. Deorbiting large quantities of debris at once would be ideal, but then there is the problem of differentiating between junk and working satellites, as well as the rain of metal through the atmosphere.
One of the cooler ways to get power from a black hole isn't by taking the energy directly. You just need a rapidly spinning hole with a wicked strong magnetic field. Viola, instant generator.
It seems, IMHO, the people who dislike M$ really dislike them, and make their opinions known to their political reps. On the other hand the people who like M$ don't like it enough to put forth such an effort.
Yeah he finished the proof in '93 or '94 can't remember offhand. Andrew Wiles was his name I think. For a good book about Fermat's Last Theorem, try Fermat's Enigma, by Simon Singh.
Perhaps computers built with these new crystals will be fast enough to resist the onslaught of Slashdot. I wouldn't really know since I can't read the article.
Is it considered scrounging when you pick up the several hundred thousand dollar diode laser you just dropped on the ground in the rain? Just wondering cause a strikingly similar situation occurred recently.
The lead coating on the inside of the glass is just there to send stray electrons to ground. Wouldn't want a significant charge building up inside your CRT.
I used to work tech support for an ISP and I remember when we switched over to not allowing relay mail through our smtp servers. We were inundated with calls, mostly from people who wanted to check and send mail from their computers at work (not logged into us), but were not able to. While it does help reduce spam (our data showed 25% of mail through our server beforehand was not from our customers) it really is an inconvenience for some people.
Slashdot Mirror
The quality of astronomy grade CCD chips is so far beyond anything you've seen in commercial digital cameras, and so much more expensive. I've used a 2048x2048 chip, cost on the order of 50k, and keep in mind when they sell it to you you don't get anything but the chip, you have to build the rest yourself. Oh yeah, I wouldn't be waiting around to make a webcam, the single readout time for the full chip was about 2 minutes. Luckily this particular chip was recently upgraded to quad readout.
My roommate got two DirectTivo boxes and one dish for about 200 bucks, and now we have around 70 hours of recording time, and can record up to 4 shows at once (Dual LNB, two shows can be recorded at the same time on each box). Unfortunately our apartment complex won't let us permanently install anything, so we just "placed" the dish on our porch pointed in the right direction. Only problem is when the wind picks up and moves the dish.
Based on the dialogue, the UPS guy would probably bring 2 boxes of toothpicks.
Just a comment on your equation, wouldn't it be h/2*2pi, or h-bar/2. Maybe I'm wrong, I can't really remember my quantum.
I'd be careful, after a while you'll probably get some sort of bird dropping buffer overrun, and the whole thing will crash.
One of the coolest low tech experiments I've done is measure the speed of light using a machinist's ruler. That's one of those metal rulers with the marks etched on the surface. By hitting the etched marks with a laser at a very low angle you can measure the speed of light using the diffraction pattern formed.
Yes they asphyxiated. Their deaths were caused by the inhalation of the fumes from the burning surfaces in the capsule. The only part of their bodies that were burned were the exposed surfaces (hands, faces) under their suits they were completely unscathed.
Its very doubtful that there is any correlation between this nebula and egypt. The structure of the Horsehead is impossible to see with the naked eye. Even with a fairly good telescope on a very dark night, you can only see the outline, with no detail. Long exposure photography and some very large telescopes are needed to get any sort of good image of the nebula.
You're right, if you don't you'll get a double image from the other eye superimposed with the image from the screen. This would probably be very distracting when trying to read small words on a small screen.
I go to UVA and this program was put to use and modified to check term papers for identical strings of words greater than 6. Two semesters ago about 145 Honor Charges were brought against students in a single class, leading to quite a few expulsions. The program isn't perfect, since it still raises a flag for quotes and bibiography, but it seems to work in exposing an existing problem.
I think a good solution to this might be to put disclaimers on free software. Something like "This software has only been tested on X and Y hardware, and can not be guarenteed to work" or something like that. It would remove much of the liability for free software developers, and most users of the software already understand the risks anyway. The best part is, Microsoft would never consider putting a warning on their product stating "This product has been proven to be insecure and you are at risk by installing it." That would pretty much be suicide for the software.
Awesome line, but I can't remember who said "Yes...oh wait, I mean no" was it Wiggum?
Chile is probably chosen not only for its economic stability, but also the fact that most observatories there go up in the Atacama Plateau. Its pretty dry there (hasn't had any measurable rainfall in over 400 years). Plus no rebel faction is going to want to climb up a 16,000 foot mountain, which also happens to be a desert, to steal some radio recievers.
Not to toot my own horn, but here's a nice(in my opinion) extragalactic picture. I'm an undergrad and my lab group and I took these this past semester. The two images are of the same galaxy, just different contrast settings to hilight different features. If it weren't for the odd shape, they'd be good desktop pics. NGC 660
Here at my apartment, my roommates and I have DirecTiVo and its great. There is definitely no drop in the picture quality for recorded programming. One of the best features is the ability to pause live TV for up to 30 minutes. Basically, you see a show you want to watch, pause it, troll Slashdot for 30 minutes, and then go back and watch the show, fast forwarding through all the commercials. What a wonderful world we live in.
Cleaning up near earth space would be extrememly difficult and costly. Going out at grabbing just one or two dead satellites or pieces of junk would require a separate mission. Deorbiting large quantities of debris at once would be ideal, but then there is the problem of differentiating between junk and working satellites, as well as the rain of metal through the atmosphere.
One of the cooler ways to get power from a black hole isn't by taking the energy directly. You just need a rapidly spinning hole with a wicked strong magnetic field. Viola, instant generator.
It seems, IMHO, the people who dislike M$ really dislike them, and make their opinions known to their political reps. On the other hand the people who like M$ don't like it enough to put forth such an effort.
Yeah he finished the proof in '93 or '94 can't remember offhand. Andrew Wiles was his name I think. For a good book about Fermat's Last Theorem, try Fermat's Enigma, by Simon Singh.
Perhaps computers built with these new crystals will be fast enough to resist the onslaught of Slashdot. I wouldn't really know since I can't read the article.
Of course to get into the true JW spirit they should use the energy to grind coffee, or harvest a field of wheat.
Is it considered scrounging when you pick up the several hundred thousand dollar diode laser you just dropped on the ground in the rain? Just wondering cause a strikingly similar situation occurred recently.
The lead coating on the inside of the glass is just there to send stray electrons to ground. Wouldn't want a significant charge building up inside your CRT.
I'll have to second that, Memento was definitely one of the best movies I've seen in a long time. Too bad it didn't get the publicity it deserved.
I used to work tech support for an ISP and I remember when we switched over to not allowing relay mail through our smtp servers. We were inundated with calls, mostly from people who wanted to check and send mail from their computers at work (not logged into us), but were not able to. While it does help reduce spam (our data showed 25% of mail through our server beforehand was not from our customers) it really is an inconvenience for some people.