We Continue the Work of Those
Who Were the First.

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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

The Hyperloop Is About to Test Its Wicked-Fast Propulsion System

09.12.2015 | Wired | www.wired.com

The hyperloop is one small step closer to shuttling us around the country like paper flying through the pneumatic tubes banks used in the ’60s.

Hyperloop Technologies, one of two known companies racing to make the sci-fi-ish transportation system a reality, announced today that it will test its propulsion system in North Las Vegas next month.

The system uses extremely low air pressure within a tube to propel capsules containing people or cargo at triple-digit velocities. Elon Musk came up with the idea and spelled out his ideas in a 57-page white paper he presented in August, 2013. He encouraged anyone with an interest to pursue the idea, since he’s a busy guy.

Hyperloop testing the propulsion system

The guys at Hyperloop Technologies riff on the idea a bit. Rather than sucking a capsule through a tube like a stale Goldfish through a vacuum cleaner, its tech would keep the capsule moving with occasional shoves. Active stator coils built into the track react with magnets built into the capsule, boosting it through the tube. Low air pressure means minimal friction slowing the capsule, and evenly spaced stator coils keep it moving.

The test track in North Las Vegas is about half a mile long, with a few hundred meters of stater coils and a power generation trailers on hand. There’s no capsule for this test, just the base it will ride on. It contains the magnets that do the pushing. The company predicts the “vehicle” will accelerate from zero to 336 mph in about two seconds.

Read more at Wired

Image Credit: Hyperloop Technologies

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