Vlnám

Vlnám is the dative plural form of the Slovak noun vlna, which means waves. The dative plural is used when waves are the indirect object of a sentence or otherwise governed by a dative element. Other grammatical forms of vlna include vlna (singular nominative), vlny (plural nominative), vlnami (instrumental plural) and vlnách (locative plural).

Origin and cognates: The word vlna derives from Proto-Slavic and has cognates in several Slavic languages, such as Russian volna, Czech vlna, Ukrainian volna, and Polish fala, reflecting a shared root for the concept of a moving disturbance.

Waves in science: In physics and related fields, a wave is a propagating disturbance that transfers energy or information through a medium or through vacuum. Key properties include amplitude (height), wavelength (distance between crests), frequency (cycles per unit time), and speed (how fast the wave travels). Common types are mechanical waves (for example water waves and sound waves) and electromagnetic waves (light, radio). Phenomena such as interference, reflection, refraction, diffraction and polarization describe how waves interact with media and with each other.

Usage note: In Slovak, vlnám appears mainly in formal or neutral prose when waves are referenced as the indirect object or within phrases requiring the dative form; the same noun can appear in other cases to describe waves in different contexts.