
Address: POLAND,
Instytut Matematyki UW, ul. Banacha 2, 02097 Warszawa, tel. +48 22 5544402

All texts were translated from Polish by Wiktor Bartol, bartol@mimuw.edu.pl.
Delta no. 1
Some important questions about us and the world
Do dragons exist?, by Grzegorz Białkowski
Tetrahedrons and spheres, by Jerzy Bednarczuk
Exploring the Mars, by Marek Demiański
Refuting the laws of physics, by Jan Gaj
Cosmic harmony and Titius and Bode's law, by Tomasz Kwast
A forest laboratory, by Mme Pipsztycka
On powers of 2, by Pawel Strzelecki
How does a garden hose swell up, by Andrzej Szymacha
How to compute it?
Our readers propose
Delta no. 2
An elementary problem
Refuting the laws of physics (II), by Jan Gaj
Home laboratory, by Janusz Gasiński
Desktop heavenly discoveries, by Jozef Smak
Two opinions on the infinity, by Jan Kalinowski and Pawel Strzelecki
The Scottish Book, by Marek Kordos
Our readers propose
Delta no. 3
Calculus, Dedekind, and Cantor (A threeact play with prologue and epilogue)
On astronomical distances
Better than Archimedes
When two conservation laws come into conflict
Cans in boxes
Devil's arithmetic, or a contribution to angelology
Glass tears
A huge magic square
Points and slats
The equation of the watch
Why?
Delta no. 4
Introduction: On what is not
The blackbody
The warmth
Does elementary charge exist?
The canals on Mars
Coronium and nebulum
The greatest prime number
The planet Vulcan
The material point
Trapped satelites
The celestial sphere
Formulas for the roots of polynomials of 5th degree
A rootless polynomial
On some sets which are not
Why is there no decent multiplication in 3D space?
The aether
Monkey's saddle
Faster than light?
Delta no. 5
Pál Erdös (1913  1996)
Force of a set
A short history of the proof of an interesting
Common Solution Sets of Real Polynomials
More on the European Union Contest for Young Scientists
Think and solve!
Delta no. 6
Euler's characteristic, or combing one's hair
Map colouring
Euler's characteristic can be an equation
Rigid polygons, movable polygons and other polygons
On the possible forms of our space
Think and solve!
The little delta
Delta no. 7
Introduction
About making coffee
How to check a processor
Shapes from shading
How to determine the distance from the Sun at the dead of night
Upwardsflowing water
DNA computing
Think and solve!
On the semantics of programming languages
Taking decisions
Needle
Delta no. 8
The end of the world by Tomasz Chlebowski
Are real numbers real? by Roman Sikorski
Three solutions for 101 numbers by Aleksander Pełczyński
Delta no. 9
An adventure in phisics by Marian Danysz
Time reversed by Michał Gawlikowski
Delta no. 10
The Sun Eclipse

