Signification visuelle de 'short wave'? - apprendre avec des images, exemples du quotidien

Illustration visuelle de short wave: Onde courte

noun

Onde courte

An electromagnetic wave having a wavelength between approximately 10 and 100 meters, corresponding to frequencies between 3 and 30 MHz.

"Shortwaves are longer than microwaves."

Les ondes courtes sont plus longues que les micro-ondes.

technology physics electronics communication frequency signal media

Illustration visuelle de short wave: Ondes courtes

noun

Ondes courtes

(usually in plural) Any frequency in this range, especially when used in broadcasting.

"Many stations broadcast on shortwaves."

De nombreuses stations diffusent sur ondes courtes.

technology electronics communication frequency signal media sound