média navazující na tradici české odborné literatury

Vydavatel časopisů
ELEKTRO a SVĚTLO

Aktuální vydání

Číslo 12/2021 vyšlo tiskem 1. 12. 2021. V elektronické verzi na webu ihned.

Téma: Měření, zkoušení, péče o jakost

Trh, obchod, podnikání
Na co si dát pozor při změně dodavatele energie?

Předchozí vydání

Rejstřík ELEKTRO 2012 až 2015

Číslo 6/2021 vyšlo tiskem
29. 11. 2021. V elektronické verzi na webu ihned.

Aktuality
Poslední zasedání redakční rady časopisu Světlo?
Ing. Jiří Novotný šéfredaktorem časopisu Světlo od jeho založení

Z odborného tisku
Nový datový formát pro popis svítidel

Předchozí vydání

Rejstřík SVĚTLO 2012 až 2015

Štítek "Efficiency"

Humpback Whales Solve a Big Problem for Wind Turbines

20.11.2015 | Wired | www.wired.com

Unlike many of their whale brethren, the humpback doesn’t survive solely on krill, captured by opening their mouths and swimming straight ahead towards the shrimp-like crustaceans. Instead, humpbacks…

... celý článek

Humpback Whales Solve a Big Problem for Wind Turbines

Nuclear Waste Deep Storage Plans Approved

18.11.2015 | IEEE Spectrum | www.spectrum.ieee.org

Finland’s government issued a construction license to nuclear disposal consortium Posiva. The license gives the group approval to build a storage facility on Olkiluoto Island, Finland, designed to…

... celý článek

Nuclear Waste Deep Storage Plans Approved

Quantum dots made from fool’s gold boost battery performance

12.11.2015 | Vanderbilt University | news.vanderbilt.edu

If you add quantum dots – nanocrystals 10,000 times smaller than the width of a human hair – to a smartphone battery it will charge in 30 seconds, but the effect only lasts for a few recharge cycles.

... celý článek

Quantum dots made from fool’s gold boost battery performance

Sonic tractor beam invented

28.10.2015 | Phys.org | www.phys.org

A team of researchers from the Universities of Bristol and Sussex in collaboration with Ultrahaptics have built the world's first sonic tractor beam that can lift and move objects using sound waves.

... celý článek

Shining more light on solar panels

23.10.2015 | Phys.org | www.phys.org

Solar panels are the beacon of renewable energy, yet they are not getting as much light as they could be. Joshua Pearce from Michigan Technological University and a team from Queen's University in…

... celý článek

Making batteries with portobello mushrooms

12.10.2015 | University of California | universityofcalifornia.edu

Can portobello mushrooms stop cell phone batteries from degrading over time? Researchers at the University of California, Riverside Bourns College of Engineering think so.

... celý článek

Making batteries with portobello mushrooms

Super-antenna could let Mars rover talk directly with Earth

16.09.2015 | ExtremeTech | www.extremetech.com

Right now, Mars rovers like Curiosity get roughly 15 minutes to talk to scientists back on Earth, twice per day. If a scientist wants to issue a complex set of orders, or download a whole bunch of…

... celý článek

Super-antenna could let Mars rover talk directly with Earth

Probing the limits of wind power generation

04.09.2015 | Phys.org | www.phys.org

Wind turbine farms now account for an estimated 3.3 percent of electricity generation in the United States, and 2.9 percent of electricity generated globally.

... celý článek

Probing the limits of wind power generation

Glass paint could keep metal roofs and other structures cool

17.08.2015 | Phys.org; American Chemical Society | www.phys.org

Sunlight can be brutal. It wears down even the strongest structures, including rooftops and naval ships, and it heats up metal slides and bleachers until they're too hot to use.

... celý článek

Glass paint could keep metal roofs and other structures cool

This lamp runs on a glass of water and two teaspoons of salt

31.07.2015 | ScienceAlert | www.sciencealert.com

An engineering start-up called SALt has invented a lamp that burns for eight hours at a time, running on nothing but a glass of water and two teaspoons of salt.

... celý článek

This lamp runs on a glass of water and two teaspoons of salt

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