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Metody obliczeniowe w fizyce [rec.]

Pierański P.

Postępy Fizyki

2004

T. 55, z. 3

131-135

Recenzja książki: Tao Pang - Metody obliczeniowe w fizyce: fizyka i komputery, przekład z jęz. angielskiego Mirosław Łukaszewski, Arkadiusz Ortowski i Maciej Pindor; Wydawnictwo Naukowe PWN, Warszawa 2001, s. 393.

Fizyka strzału z bicza

Tomaszewski W., Pierański P.

Postępy Fizyki

2004

T. 55, z. 1

10-18

The history of the experimental studies of the whip cracking phenomenon as reconstructed by Goriely and McMillen is briefly described. Technical details and results of the recent experiments performed by Peter Krehl et al. are presented. The discrete model of the whip and its equations of motion are formulated. Algorithms of its numerical integration are discussed. Results of a few numerical experiments in which the end of the whip is shown to reach supersonic velocity are presented and analysed.

In search of ideal knots

Pierański P.

Computational Methods in Science and Technology

1998

Vol. 4

9-23

A concise introduction to the mathematical theory of knots is presented. Definitions of basic notions are explained. Then, knots are considered as material objects and the question concerning their optimal conformations is posed. A numerical algorithm searching for the ideal knots is described. A few results obtained with its help are presented.