10 year old children of the "Burgemeester W.A. Storkschool" in Dwingeloo will attend a chat-session on Saturday 15 May with kids in South Africa and Australia. They will do this during a live internet exchange, organised by ASTRON, Netherlands Institute for Radio Astronomy and Universe Awareness (UNAWE). UNAWE is an international programme, that brings young children in contact with the inspiring aspects of astronomy. UNAWE is a worldwide platform for the exchange of ideas, materials and educational programmes in the field of astronomy and is active in 38 countries worldwide.

Published by the editorial team, 12 May 2010

The internet exchange on 15 May has been organised in honour of a big conference that ASTRON is organising in June, in Drenthe: the International SKA Forum 2010. During this conference, scientists and engineers from all over the world will talk about a new revolutionary radio telescope that will follow the current biggest radio telescope in the world LOFAR: the Square Kilometre Array (SKA). During the conference, the internet exchange will also be presented, to point out that the construction of a telescope also influences (young) children, the scientists of the future, and their ideas about astronomy and the Universe.

During the internet exchange, the kids from Dwingeloo will compare homemade telescopes with the telescopes that the kids in South-Africa and Australia have made. The day will conclude with a tour around the Westerbork telescope.


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On June 13-17, the LOFAR Family Meeting took place in Cologne. After two years LOFAR researchers could finally meet in person again. The meeting brings together LOFAR users and researchers to share new scientific results.

Our renewed ‘Melkwegpad’ (Milky Way Path) is finished! The new signs have texts in Dutch on the one side and in English on the other side. The signs concerning planets have a small, 3D printed model of that planet in their centre.
#Melkwegpad @RTVDrenthe

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The background drawing shows how the subband correlator calculates the array correlation matrix. In the upper left the 4 UniBoard2s we used. The two ACM plots in the picture show that the phase differences of the visibilities vary from 0 to 360 degrees.

Daily image of the week: Testing with the Dwingeloo Test Station (DTS)
One of the key specifications of LOFAR2.0 is measuring using the low- and the highband antenna at the same time. For this measurement we used 9 lowband antenna and 3 HBA tiles.