So if you think about it, wireless signals, they travel through space, they go through obstacles and walls and occlusions, and some of them, they reflect off our bodies, because our bodies are full of water, and some of these minute reflections, they come back.
Se ci pensate, i segnali radio, viaggiano attraverso lo spazio, attraversano ostacoli e muri e occlusioni, e alcuni, riflettono sui nostri corpi, perché siamo pieni d'acqua, e alcuni di questi piccoli riflessi, tornano indietro.