"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The Casimir effect is a quantum phenomenon in which two materials, when placed close together, can be ...

It’s somewhat harder to comment on a saint’s feast during a particular week in Lent because, with few exceptions, almost all saints’ days during Lent are optional memorials. The logic of the ...

CLEVELAND, Ohio — About 100 Polish-Americans bowed their heads in somber prayer and song today in front of a chain-link fence that surrounds boarded-up St. Casimir Catholic Church on Cleveland’s East ...

Percolation and critical phenomena show common features such as scaling and universality. Colloidal particles, immersed in a solvent close to criticality, experience long-range effective forces named ...

Casimir Pulaski Day. If you grew up in Illinois in the 1980s or 1990s (or, if you raised a kid at the time), you probably remember a school and government holiday — the first Monday in March — that ...