The number 0 as a cultural paradigm: from emptiness to the absolute
Celebration of Christmas in communist countries
Finnish model of interaction between parents, teachers, and students
Imagine a substance, one kilogram of which costs twenty million dollars. It is hardly found on Earth, but is abundantly scattered across the surface of the Moon. It is capable of cooling quantum computers to temperatures near absolute zero, and perhaps someday will become a fuel for clean thermonuclear energy. This is not the plot of a science fiction novel. This is Helium-3 — a rare isotope that today has become the center of a new space race.
NO END OF THE WORLD IN SIGHT
Personalia. In memoriam. ANDREY ALEKSEYEVICH ZHUKOV (1938-2006)
Flowers of the "Christmas Star": from the Bethlehem miracle to the greenhouse poem
Celebration of Christmas in Japan
Overcoming gender exclusion practices
Günther Demnig and his idea of "stumbling stones"