Looking for ET at home...

[NoahsMommy]

Uh...no, I don't believe in aliens (please don't make this a dog house thread ), but if I let my computer look for them while I'm not on it, I get 5 points of extra credit in my Astronomy Class. Sounds like a deal to me!!

Check it out: http://setiathome.ssl.berkeley.edu

[NoahsMommy]

Here is some info on what SETI is:

Most of the SETI programs in existence today, including those at UC Berkeley build large computers that analyze that data from the telescope in real time. None of these computers look very deeply at the data for weak signals nor do they look for a large class of signal types (which we'll discuss further on...) The reason for this is because they are limited by the amount of computer power available for data analysis. To tease out the weakest signals, a great amount of computer power is necessary. It would take a monstrous supercomputer to get the job done. SETI programs could never afford to build or buy that computing power. There is a trade-off that they can make. Rather than a huge computer to do the job, they could use a smaller computer but just take longer to do it. But then there would be lots of data piling up. What if they used LOTS of small computers, all working simultaneously on different parts of the analysis? Where can the SETI team possibly find thousands of computers they'd need to analyze the data continuously streaming from Arecibo?

The UC Berkeley SETI team has discovered that there are already thousands of computers that might be available for use. Most of these computers sit around most of the time with toasters flying across their screens accomplishing absolutely nothing and wasting electricity to boot. This is where SETI@home (and you!) come into the picture. The SETI@home project hopes to convince you to allow us to borrow your computer when you aren't using it and to help us "…search out new life and new civilizations." We'll do this with a screen saver that can go get a chunk of data from us over the internet, analyze that data, and then report the results back to us. When you need your computer back, our screen saver instantly gets out of the way and only continues it's analysis when you are finished with your work.

It's an interesting and difficult task. There's so much data to analyze that it seems impossible! Fortunately, the data analysis task can be easily broken up into little pieces that can all be worked on separately and in parallel. None of the pieces depends on the other pieces. Also, there is only a finite amount of sky that can be seen from Arecibo. In the next two years the entire sky as seen from the telescope will be scanned three times. We feel that this will be enough for this project. By the time we've looked at the sky three times, there will be new telescopes, new experiments, and new approaches to SETI. We hope that you will be able to participate in them too!

[smokey the elder]

I've had that for awhile. We're up to about 1700 hours.

[NoahsMommy]

Wow! That's pretty good! I'm up to 37 so far.

How many units do you have completed?

[AmberLee]

I've heard about this before and I'm curious. How does it work; is it transparent to you?

How do you protect against transferring viruses? Would it still work if you have a firewall on your computer? (The concept of someone external accessing my computer to process data kind of creeps me out, as I guess you can tell.) Tell me more about your experience, please.

[NoahsMommy]

Its actually quite safe. My hubby, the computer freak was fine with me installing it. Its kind of cool, you basically leave your computer on (you can turn the screen off) and the program works when you aren't.

It works like a screensaver and you can watch it reading the data received from the far reaches of space. The current unit my computer is reading is from April 09 at 19:39:54 (6:39 pm). The program is really very small and doesn't seem to effect my other programs at all.

You can use it on PC's as well as Macs.