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Szklane laski spacerowe w zbiorach Muzeum Narodowego w Krakowie

Paś Monika

Szkło i Ceramika

2020

R. 71, nr 4

59--61

W zbiorach Muzeum Narodowego w Krakowie znajduje się ponad dziewięćdziesiąt lasek pochodzących z różnych stron Europy, Azji i Afryki, datowanych od XVIII do 2 połowy XX wieku, w większości przechowywanych w zbiorach Działu Rzemiosła Artystycznego, Kultury Materialnej i Militariów. Z tego różnorodnego, dosyć przypadkowego zespołu w artykule omówiono dwie – dotychczas nie publikowane - laski spacerowe, wykonane w całości ze szkła.

Glass canes in the collection of the National Museum in Krakow. The collection of the National Museum in Krakow includes more than ninety walking sticks from various parts of Europe, Asia and Africa, dated from the 18th to the 2nd half of the 20th century, mostly kept in the collections of the Department of Decorative Art, Material Culture and Militaria. From this diverse, quite random set, the article discusses two - not yet published - walking sticks made entirely of glass.

“Radius mathematicus” Joachima Stegmanna

Jasiński M.

Kwartalnik Historii Nauki i Techniki

2015

R. 60, nr 3

33--53

Joachim Stegmann the elder (1595–1633), Brandenburg born theologian of the Polish Brethren, was also a mathematician. In this area of his activity, he published a textbook for the Unitarian school in Raków, Institutionum Mathematicarum Libri Duo (Two Books of Mathematical Sciences, Raków 1630), and two works describing multifunctional surveying devices: Circinus Quadrantarius (Quadrant Compass, Berlin 1624) and Radius Mathematicus (Mathematical Walking Stick, Berlin 1626). This paper deals with Stegmann’s Radius Mathematicus, which is a description, or rather a manual, of a walking stick of hexagonal section. Each of its sides was engraved with scales of various surveying devices. There were a cylinder sundial, a scale of quadrant for determining the altitude of Sun, a cross staff, a scala altimetra for determining the height of an object basing on the length of its shadow, a caliber gauge for determining the weight of cannonballs, a length of an ell and a gauging rod for surveying barrels. Some surveys had to be conducted with a separate gnomon. The stick was probably about 130 cm long and the gnomon was about 30 cm long. The paper is followed by a reproduction of Radius Mathematicus from the Gdańsk Library of the Polish Academy of Sciences (call number Sa 1 8° adl. 11) and its Polish translation.