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History/Background
The IsraAliens SETI@home Team

Looking backward...

History of the team
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It all started when lior and ilan (?) wanted to start a new Israeli SETI@home team...

Then, we convinced most of team Israel to join us...

The first time we reached the top 100 club teams was...

When we reached the top 100 of ALL teams...

How SETI works

As most SETI programs, SETI@home uses a big dish to try and find signs for extraterrestrial inteligence in the electro-magnetic noise that fills the outer space. SETI@home scans a band of 2.5 MHz centred at about 1.42GHz. This range of the micro-wave radio band is known as "The Water Hole", for two reasons: 1) It is one of the most quite areas of the radio frequency band in the electromagnetic spectrum. A graph showing the noise level as a function of frequency will have a substantial deep in this area. 2) This frequency is one of the emmition frequencies (emmition lines) of Hydrogen, the most common substance in the universe, and the closest of them to that of Hydroxil (HO-). together, they form water (H++HO-=H2O), the basic component in life as we know it. We assume that any interstellar radio transmission will most likely be made in this range, and in any case, transmissions in this range are the easiest to detect.