Here is a good article about electronic noise and pulsar research.

http://tech.yahoo.com/news/ap/20081231/ap_on_hi_te/interference_hunters_5

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For generations astronomers have battled ‘light pollution’, most often by moving further and further away from civilization.

Now a new threat, and not one easily dealt with.

Oh, I have taken the liberty of link-a-linking your link:

Interference hunters

:)

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Pure mathematics is, in its way, the poetry of logical ideas.

Albert Einstein

Nature magazine signals that the first antenna of the ALMA array has been activated on the Atacama desert in Chile at a height of 5000 meters. Radioastronomers must be in good physical shape to work there.
Tullio

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The only way for those researchers is to shift the whole telescope to a

quiet part of the world. The should also consider having anther telescope to

compare there results and even consider taking radioastronomy to the moon

controlling the telescope by remote.

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We choose to go to the moon and to do other things, we choose to go to the moon not because its easy but because its hard. kennedy

THERE IS ANOTHER WAY TO LIGHT UP THE NIGHT<---hit here!

The World Night in Defence of the Starlight, starting day of the International Dark Skies Week (IDSW).
On April 20th, 2007 during the ---> International Starlight Conference, convoked with the support of UNESCO, IAC, IAU, and several other national and international bodies and organizations, it was agreed to promote the World Night in defence of the Night Sky and the Right to Observe the Stars, as a cultural, scientific and environmental humankind heritage.
April 20th, 2009 acquires a special meaning within the UN International Year of Astronomy (IYA 2009). For the first time the defence of the night sky quality and the right to observe the stars have their special date.
The World Night in Defence of the Starlight aims to be a date when every year we remind the need to maintain the window to the observation of the Universe open. A date when we can think over the need to preserve a unique heritage that we are hiding day by day.
April 20th will be the date where the Declaration in Defence of the Night Sky and the Right to Starlight will be promoted at all levels, municipalities, governments organizations, NGOs, citizens associations and also individuals.

April 20th should be a moment of creativity to hold activities such as the following that are already being planned, and other ones that can be proposed:

* Appeal the population to switch-off outdoor lights, at least that night, reminding that it is possible to recover the stars and, at the same time, save energy and fight against climate change.
* Organize competitions of artistic expressions related with star observation: drawings, photographs, etc..
* Open-door day in astronomical observatories.
* Star observation night organized by astronomy amateurs. • Exhibitions and media campaigns.
* Conferences and distribution of dissemination videos.
* Presentation of books related to astronomy and night sky values.
* Identify landscapes and adopt stars.
* Recovering tails traditions, music related with the observation of firmament in every place.
* and, in particular, organising acts where children will participate. The capacity to recover the right to observe stars is in their hands, it is the right of future generations.

This applies only to the visible electromagnetic spectrum (light as we all know it).It is interesting to know that all we do in life has some kind of interference in our surroundings, even a small light bulb or a laptop!

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The only way for those researchers is to shift the whole telescope to a

quiet part of the world. The should also consider having anther telescope to

compare there results and even consider taking radioastronomy to the moon

controlling the telescope by remote.

The ALMA array will consist of 50 12 meters antennas acting as a single telescope plus a number of 7 meter and 12 meter antennas acting singly. It might require quite a fleet of trucks to transport them otherwise. Special trucks have been built to ferry them from the Mejillones port to the Atacama desert. Most of the antennas come from Japan aboard cargo ships.
Tullio

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The only way for those researchers is to shift the whole telescope to a

quiet part of the world. The should also consider having anther telescope to

compare there results and even consider taking radioastronomy to the moon

controlling the telescope by remote.

The ALMA array will consist of 50 12 meters antennas acting as a single telescope plus a number of 7 meter and 12 meter antennas acting singly. It might require quite a fleet of trucks to transport them otherwise. Special trucks have been built to ferry them from the Mejillones port to the Atacama desert. Most of the antennas come from Japan aboard cargo ships.
Tullio

If someone did not buy recently for Christmas the pertinent gifts, then here´s a second chance:
remember that there´s a last chance for you with the "Three Holly Kings (January 6th)"---->build a 12 m ALMA paper model antenna
The only things needed are: scissors, paper cutter, white glue.
You do not need a Ph.D in Physics to do it!!!
Have fun!

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This must be an origami. Only a Japanese could imagine this kind of model building. I have built model ships and airplanes (gliders, rubber powered, engine powered) but never an antenna for radioastronomy.
Tullio

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