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Current issue

ELEKTRO 10/2016 was released on September 27th 2016. Its digital version will be available on October 27th 2016.


Topic: 22nd International trade fair ELO SYS 2016; Electrical Power Engineering; RES; Emergency Power Units


Main Article

Power system management under utilization of Smart Grid system

Printed edition of SVĚTLO (Light) 5/2016 was released on September 19th 2016. Its digital version will be available immediately.


Standards, regulations and recommendations

Regulation No 10/2016 (Prague building code) from the view of building lighting technology


Lighting installations

PROLICHT CZECH – supplier of lighting for new SAP offices

Hold up the light to see in work your work

Modern and saving LED lifting of swimming pool hall

Shooting at the speed of light

09.12.2014 | |

Light reflectionFor most of us, high-speed image capture, say 120 or 240 frames per second, is enough to get a good look at stuff happening in the blink of an eye -- like a water droplet hitting the ground or a Bichon Frisé snagging his favorite ball. For faster subjects, industrial-strength high-speed cameras can grab tens of thousands of frames per second (or more). But when your rapidly moving target is light itself, you're going to need something a bit quicker -- to the tune of 100 billion fps, according to Nature.

Using a technique called "compressed ultrafast photography" (CUP), researchers at Washington University in St. Louis can track light as it travels and interacts with objects. It's a new spin on the streak camera method, where a sensor moves along with the light to record its motion. Previous streak camera setups have been limited to narrow, one-dimensional views, but the CUP technique allows for two-dimensional image capture. One example video shows a laser pulse sauntering by and reflecting off a mirror in a few tens of picoseconds (trillionths of a second).


Further reading at engadget.com
Image credit: Nature