Andrew made up a new website a long time ago but they never transferred over to it. I guess they had more important things to work on, like building a solar car.:)
I don't know where you're getting your specs but the headline is correct. Our batteries weigh 30kg (66 lbs) as per race rules. Maybe you're thinking of an old lead-acid based car. This car uses lithium-ion polymer batteries.
And as for the question about the solar cells, they're certainly the single most expensive part of the car, but they're really not that bad. They're gallium arsenide cells sold to us at a steep discount by Spectrolab because they were rejected for use on satellites, but even their rejects are much better than standard silicon terrestrial-grade cells (which incidentally is what we won second with in 2001). The full grade cells run in the millions of dollars, but reject cells like ours can be found in the ballpark of tens of thousands. The bare cells themselves are not significantly thinner or lighter than any other type of cell, but I guarantee the packaging and encapsulation is.
From
this Scientific American article on it a while back:
The collection of distances from the array of pixels provides a 3-D map of the area scanned. Moreover, this device can survey its surroundings more than 50 times every second. Like the pattern projector, the infrared light stays close to the surface. The sensor's view can get blocked if a user hits two keys at once that are exactly in line from the sensor. That happens rarely. But if it does, the keyboard's software makes the shift key "sticky," so even if it gets blocked by a finger on the E, the keyboard will interpret it as the two keys hit together.
Re:Oh, someone explain to me
on
Equilibrium
·
· Score: 1
I don't know what you're bitching about, but I don't have IE, and I was able to watch the highest-quality Windows Media copy, *and* save it to disk. Try:
I used to have an Abit KT7-RAID board with a 900MHz Athlon. At the beginning of this school year, when I brought my computer to school, I couldn't get it to power on again after the move. I tried lots of different things, and eventually gave up and ordered a new Epox board and an XP2200+. I never figured out what was wrong with it, although I did know it was the M/B and not the CPU. I looked over it but did not find any obvious damage, no blackened or blown parts. When I read this article, I got out that M/B and had another look at it. None of the seals on the top of the caps were blown (as in the pictures), but THREE different caps were sitting at slighly odd angles. Thats when I noticed that each of the three had a bulge underneath them, and some nasty rust-colored gunk hidden down around their bases. Guess that explains the slowly increasing stability problems I'd been seeing with this board for about 9 months before the failure. You can bet I won't be buying more Abit boards, especially not after hearing these other stories.
...that they'd release a new version immediately after terminating my subscription.
Re:The Force violates conservation of momentum
on
Physics in the Movies
·
· Score: 1
In reality you will not be able to hear the laser guns firing on another ship or the screech of its engines as it files by, and you will not be able to hear the death star explode. This is of course because space is a vacuum and sound does not travel through it.
Personally, I really like the way in Episode II Fett shoots explosive charges that can't be heard until a few seconds after the explosion is seen, because obviously, it takes sound a while to travel through space. This, as opposed to every other Star Wars space explosion, which can be heard instantly.
If I understand the Scientific American article correctly, what we're talking about here is NOT blocking gravitational fields in the standard sense. The normal, static gravitational effect we associate with massive objects is really a manifestation of the gravitoelectric field. Superconductors, however, are believed to block the gravitomagnetic field, which occurs when a massive object is in motion or rotating. This is also referred to as the Meissner effect, or "frame-dragging". Note the effect of earth's gravitomagnetic field is very small; physicists have only barely been able to prove its existence based on minor course corrections needed for satellites in earth orbit, where the earth is the massive rotating object. So no, the effect of superconductors on gravity (if true at all), will not directly lead to hover technology. What it might lead to is a better method of detecting and generating gravitational waves; in theory, such waves could someday be used for communication the way EM waves are today.
Go to the gamegal link above and look for the hall of shame.
Its about time that someone made virtual boobs that jiggle.:)
Re:What's the big deal?
on
Debian And WineX
·
· Score: 5, Insightful
They do distribute debian DEB packages along with the RPM's, but of course, these are the full, stable releases, which include non-free code like copy protection, and which you must be a subscriber to download. They're worried that if Debian distributes the compiled CVS version and calls it WineX, people who install that package may think that's all there is, without being aware of the subscription service or the extra features possible. Personally, I agree with them, and don't see what all the fuss is about. I don't see a 'big bad company' trying to muscle out the 'little guy', I see a group trying to support open source development financially, and trying to protect their interests in doing so. If you read Gavriel State's response, I think their position is perfectly reasonable.
I found out an easy way to slow down Code Red's scanning progress off a certain security site. Respond to the initial SYN packet with a SYN/ACK, but then don't acknowledge any further packets. The other side will spend several minutes retrying to send the worm to you, before finally giving up. I did this by adding this simple ipchains rule to my firewall (no, I haven't figured out iptables yet):
ipchains -I input -j DENY -p tcp -s 0.0.0.0/0 1024:65535 -d $MY_IP 80 ! -y
Of course, if you actually run a webserver, which I don't, that would be a bad thing to do.
Also, it is possible to get a command prompt on most infected servers, by telnetting to port 80 of the machine and doing an HTTP request for/scripts/root.exe. Surely it must be possible to either warn the administrator, clean the machine, or at least knock the machine off the network from there? I'd investigate it more myself, but I've heard enough horror stories about people investigating hacked systems whose houses get raided by the FBI or something similar that I think I'll stick to more passive resistance.:)
Slashdot Mirror
mirrorS arE morE fuN thaN televisioN
Andrew made up a new website a long time ago but they never transferred over to it. I guess they had more important things to work on, like building a solar car. :)
I don't know where you're getting your specs but the headline is correct. Our batteries weigh 30kg (66 lbs) as per race rules. Maybe you're thinking of an old lead-acid based car. This car uses lithium-ion polymer batteries.
And as for the question about the solar cells, they're certainly the single most expensive part of the car, but they're really not that bad. They're gallium arsenide cells sold to us at a steep discount by Spectrolab because they were rejected for use on satellites, but even their rejects are much better than standard silicon terrestrial-grade cells (which incidentally is what we won second with in 2001). The full grade cells run in the millions of dollars, but reject cells like ours can be found in the ballpark of tens of thousands. The bare cells themselves are not significantly thinner or lighter than any other type of cell, but I guarantee the packaging and encapsulation is.
The collection of distances from the array of pixels provides a 3-D map of the area scanned. Moreover, this device can survey its surroundings more than 50 times every second. Like the pattern projector, the infrared light stays close to the surface. The sensor's view can get blocked if a user hits two keys at once that are exactly in line from the sensor. That happens rarely. But if it does, the keyboard's software makes the shift key "sticky," so even if it gets blocked by a finger on the E, the keyboard will interpret it as the two keys hit together.
I don't know what you're bitching about, but I don't have IE, and I was able to watch the highest-quality Windows Media copy, *and* save it to disk. Try:
/ 1919/7287/v0001/hollywood.download.akamai.com/7287 /windows/equilibrium_t_700.asf"
mplayer -dumpstream -dumpfile equilibrium_t_700.asf "mms://a1919.v7287f.c7287.g.vm.akamaistream.net/7
(Note: probably need to remove spaces)
I used to have an Abit KT7-RAID board with a 900MHz Athlon. At the beginning of this school year, when I brought my computer to school, I couldn't get it to power on again after the move. I tried lots of different things, and eventually gave up and ordered a new Epox board and an XP2200+. I never figured out what was wrong with it, although I did know it was the M/B and not the CPU. I looked over it but did not find any obvious damage, no blackened or blown parts. When I read this article, I got out that M/B and had another look at it. None of the seals on the top of the caps were blown (as in the pictures), but THREE different caps were sitting at slighly odd angles. Thats when I noticed that each of the three had a bulge underneath them, and some nasty rust-colored gunk hidden down around their bases. Guess that explains the slowly increasing stability problems I'd been seeing with this board for about 9 months before the failure. You can bet I won't be buying more Abit boards, especially not after hearing these other stories.
...that they'd release a new version immediately after terminating my subscription.
Personally, I really like the way in Episode II Fett shoots explosive charges that can't be heard until a few seconds after the explosion is seen, because obviously, it takes sound a while to travel through space. This, as opposed to every other Star Wars space explosion, which can be heard instantly.
If I understand the Scientific American article correctly, what we're talking about here is NOT blocking gravitational fields in the standard sense. The normal, static gravitational effect we associate with massive objects is really a manifestation of the gravitoelectric field. Superconductors, however, are believed to block the gravitomagnetic field, which occurs when a massive object is in motion or rotating. This is also referred to as the Meissner effect, or "frame-dragging". Note the effect of earth's gravitomagnetic field is very small; physicists have only barely been able to prove its existence based on minor course corrections needed for satellites in earth orbit, where the earth is the massive rotating object. So no, the effect of superconductors on gravity (if true at all), will not directly lead to hover technology. What it might lead to is a better method of detecting and generating gravitational waves; in theory, such waves could someday be used for communication the way EM waves are today.
Go to the gamegal link above and look for the hall of shame.
:)
Its about time that someone made virtual boobs that jiggle.
They do distribute debian DEB packages along with the RPM's, but of course, these are the full, stable releases, which include non-free code like copy protection, and which you must be a subscriber to download. They're worried that if Debian distributes the compiled CVS version and calls it WineX, people who install that package may think that's all there is, without being aware of the subscription service or the extra features possible. Personally, I agree with them, and don't see what all the fuss is about. I don't see a 'big bad company' trying to muscle out the 'little guy', I see a group trying to support open source development financially, and trying to protect their interests in doing so. If you read Gavriel State's response, I think their position is perfectly reasonable.
I found out an easy way to slow down Code Red's scanning progress off a certain security site. Respond to the initial SYN packet with a SYN/ACK, but then don't acknowledge any further packets. The other side will spend several minutes retrying to send the worm to you, before finally giving up. I did this by adding this simple ipchains rule to my firewall (no, I haven't figured out iptables yet): ipchains -I input -j DENY -p tcp -s 0.0.0.0/0 1024:65535 -d $MY_IP 80 ! -y Of course, if you actually run a webserver, which I don't, that would be a bad thing to do. Also, it is possible to get a command prompt on most infected servers, by telnetting to port 80 of the machine and doing an HTTP request for /scripts/root.exe. Surely it must be possible to either warn the administrator, clean the machine, or at least knock the machine off the network from there? I'd investigate it more myself, but I've heard enough horror stories about people investigating hacked systems whose houses get raided by the FBI or something similar that I think I'll stick to more passive resistance. :)
...Mention the first, third, and fourth teams, but leave out second, the University of Missouri - Rolla, which just happens to be my team. :)