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The lighting of housing estate parking spaces as a source of light pollution

Ściężor Tomasz

Technical Transactions

2023

Vol. 120, iss. 1

art. no. e2023016

This publication is devoted to the problem of lighting in parking spaces ina housing estate. Both aspects related to the safety of their users and thepotential impact on the natural environment through the phenomenon of lightpollution are discussed. Parking spaces are classified in terms of their purposeand lighting. It was found that half of them are insufficiently illuminated, often bylight sources originally intended to illuminate green areas or streets. As a result,the illuminance of their surface is much lower than the value specified bystandards for this type of public space. It was found that this form of outdoorlighting does not directly make a noticeable contribution to the artificial skyglow, which is the main form of light pollution. However, isolated cases ofexcessive lighting in parking spaces have been recorded. In this case, the lightreflected from the pavement or the street makes a significant contribution toartificial sky glow. It is suggested to replace the lighting in parking spaces withdedicated sets of LED or MH luminaires, which would minimise the impact ofthis lighting on the environment while ensuring the proper lighting of both thesurface and the vehicles parked on them.

„Złotodajna” makulatura. Na marginesie badań nad polskimi wydaniami modlitewnika Hortulus animae

Krzak-Weiss Katarzyna

Kwartalnik Historii Nauki i Techniki

2023

T. 68, nr 3

97--110

Research on binding wastepaper has a long tradition in Poland, dating back to the 1820s, and the result is the discovery of fragments of many valuable manuscripts and prints. This article is devoted to the discoveries made, among others, by Władysław Nehring, Kazimierz Piekarski and Anna Lewicka-Kamińska, the fruit of which were previously unknown editions of the popular prayer book Hortulus animae, found and preserved only in the fragments they discovered. The most groundbreaking was Nehring’s find, thanks to which eight pages of the first Polish edition of Hortulus were published, but the importance of the remaining ones cannot be overestimated. It is noteworthy that out of eleven (certain and highly probable) editions, dating back to the first half of the 16th c., as many as six are known only thanks to single sheets extracted from their bindings.