HOLLAN, Jan. Light as a Disruptor to be Quantified. Brno: Brno Uni. of Technology, Faculty of Engineering and Commmunication, Dept. of Physics, 2012.
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Basic information
Original name Light as a Disruptor to be Quantified
Authors HOLLAN, Jan.
Edition Brno, 2012.
Publisher Brno Uni. of Technology, Faculty of Engineering and Commmunication, Dept. of Physics
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 50300 5.3 Education
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
Publication form printed version "print"
WWW 3 typos corrected after publication
Organization unit Faculty of Education
Keywords in English darkness; circadian cycle; sleep disruption; radiometry; photometry; faint light
Tags International impact
Changed by Changed by: RNDr. Jan Hollan, Ph.D., učo 3319. Changed: 21. 2. 2013 10:22.
Day and night cycle, what's more natural than that? And what aspect of nature has been lost more than this one, in our civilisation? It appears, that the present light amounts we're using at night 'thanks' to electric lighting are far over the safe levels. Not only wildlife, but our own health is damaged a lot. Bad and shorter sleep, reduced melatonin production controlling the night-mode metabolism result. The very roots of our civilisation vanish. However, hard numbers are a must in debating those issues. And a broad citizen involvement. Bringing light-at-night photometry to everybody's hands is feasible, instruments for that exist now. We present an overview of technologies, results and their implications. Restoring healthy darkness and still being able to live comfortably is well within our reach. Quantitative approach helps to overcome the business parole 'the more light the better'. Light can be a good servant again, not a bad lord.
CZ.1.07/2.2.00/28.0182, interní kód MUName: Moduly jako prostředek inovace v intergaci výuky moderní fyziky a chemie
Investor: Ministry of Education, Youth and Sports of the CR, 2.2 Higher education
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