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Current issue

ELEKTRO 7/2018 was released on June 27th 2018. Its digital version will be available on July 27th 2018.

Topic: Cables, conductors and cable engineering; Tools, equipment and accessories for work with cables

Main Article
Parametrization of circuit models of Li-accumulators for electromobility
Smart Cities (part 3 – volume 1)

SVĚTLO (Light) 4/2018 was released on July 30th 2018. Its digital version will be available on August 31th 2018.

Refreshing our memory
Eccentric luminaires of René Roubíček from the years1965 till 1977
Bases of photometry – 1st part
Great personage of Czech science of times after Battle at Bílá hora: doctor, naturalist, philosopher and physicist Jan Marek Marci from Kronland

Optical radiation effects and use
The light and circadian rhythms

Dutch trains now all powered by wind energy

11.01.2017 | Phys.org | www.phys.org

All Dutch trains are now 100 percent powered by electricity generated by wind energy, said the national railway company NS, calling it a world first.

Dutch electricity company Eneco won a tender launched by NS two years ago and the two firms signed a 10-year deal setting January 2018 as the date by which all NS trains should run on wind energy.

Dutch trains now run on wind energy

Eneco and NS said on a joint website that some 600,000 passengers daily are “the first in the world” to travel thanks to wind energy. NS operates about 5,500 train trips a day.

One windmill running for an hour can power one train across some 200 kilometres (120 miles), the companies said. They now hope to reduce the energy used per passenger by 35 percent by 2020 compared with 2005.

Read more at Phys.org

Image Credit: Wikipedia Commons

-jk-