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Current issue

ELEKTRO 12/2017 was released on December 6th 2017. Its digital version will be available on January 5th 2018.

Topic: Measurement, measuring devices and engineering; Testing and diagnostics

Main Article
Measurements on rotating machines using SFRA method
Application possibilities of ultra-capacitors or LiFePO4 batteries in trolley network of the Brno Public Transit Company

SVĚTLO (Light) 6/2017 was released on December 11th 2017. Its digital version will be available on january 11th 2018.

Lighting installations
The lighting of university building Centrale Supélec in Saclay in France
The light for our future

Daylight
Application and judgment light guides Solatube®

Oxford to build spectrograph for world’s largest optical telescope

26.05.2017 | University of Oxford | www.ox.ac.uk

University of Oxford researchers will lead the design and build of the HARMONI spectrograph for the European Extremely Large Telescope (E-ELT). The HARMONI project will provide the world’s largest visible and infrared telescope with unprecedented physical insights about objects in the distant Universe.

Perched on top of Cerro Armazones in the Atacama Desert of northern Chile, the E-ELT will have a giant main mirror 39 metres in diameter. The telescope will enable scientists to peer further into the history of the Universe, studying distant, young galaxies in great detail with better sensitivity than ever before — helping improve our understanding of the Universe, the effects of dark matter and energy, and planets outside of our solar system.

Largest telespoce in the world

When it is first used in 2024, the E-ELT will be equipped with three scientific instruments. One of these will be HARMONI, a spectrograph which splits the light from the object in the sky into its component wavelengths or colours. Astronomers can use these ‘spectra’ to determine far more than images alone ever can: they reveal the motion, temperature and chemical composition of structures imaged using the telescope.

Read more at University of Oxford

Image Credit: University of Oxford

-jk-