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general & science & spanish Franchu on 01 May 2008

Un momento histórico

Cuando he visto esta foto me ha sorprendido ver a tantas personas relevantes para la ciencia juntas en una misma ocasión y siempre me ha surgido la duda de si eran conscientes de la importancia que sus descubrimientos tendrían en el futuro.

Así podemos ver en la foto, entre otros, a:

science & spanish & technology Franchu on 24 Mar 2008

Visualización del espectro electromagnético

Para los que no lo sepan el espectro electromagnético está dividido en bandas de frecuencias y cada una de ellas está asignada para un uso determinado. La asignación la realiza la ITU (International Telecommunication Union) con el fin de regular el uso del espectro y garantizar un funcionamiento correcto de los servicios.

Los planes de frecuencias son bastante complejos y alguien ha hecho una visualización del espectro electromagnético en flash para ver qué segmentos del espectro están asignados a cada uso.

english & science & technology Franchu on 28 Dec 2007

GLONASS: The Russian GNSS has new birds in space!

A couple of days ago, Russia has launched 3 new GLONASS satellites. It seems that finally we will get to see one day the full constellation working and those are good news for all of us who are in the satellite navigation systems business.

The increase of satellites will lead to an enhanced accuracy and more availability in areas that were not benefited by the GPS orbital planes configuration specially the high northern latitudes as in northern Europe, Canada and Alaska. This is due to the fact that GLONASS was designed to provide very good accuracy over Russia and the US. Let’s not forget that it was in the beginning, and still is, a military system for guidance of ICBMs that nowadays happens to have many civilian uses and users.

After being twice in Russia some years ago and talking with people that work with GLONASS on a daily basis, I was able to see how proud they are of their system and how hard they believed that it will be operational one day. Now I am really happy to see that the day when we will all be able to use it is near.

I have also found out a nice website in which you can follow the status of the GLONASS constellation (they also have some information on GPS) and the predicted coverage as show in the image below.

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