What the pandemic gave us was a new ritual: the Zoom wave. It doesn’t matter how serious the conversation — whither the ...

When waves meet a gap or an edge in a barrier, they continue through the gap or past the edge of the barrier. However, what happens on the far side of the gap or barrier is not so straightforward.

Part of the ear What it does Pinna This is the outer flap of the ear – the part you see on the side of your head. Its main job is to gather sound waves and funnel them towards the ear canal.