[tgv]

That sounds surprising to me, too, because I can vary the loudness by moving one hand faster or slower towards the other. My intuition says that a sonic boom is a "catastrophic" event, so there should be a threshold. I'm wondering how they measured that.

[treyfitty]

The most interesting part of this statement is that you physically move both hands to clap… I let my dominant hand “hit” my other hand… is that not how everyone does it lol

[adhesive_wombat]

I think you'll be ok, considering at least one person does this: https://twitter.com/MetroUK/status/748854767938473984

[Sakos]

Look around sometime. I never see everybody clapping the same way. There are tons of variations, including what you do, and plenty of people use them.

[magicalhippo]

I mostly move both, but vary a bit depending on intensity and frequency. It's faster to clap against, but I get more sound moving both. It also spreads the effort, so I prefer it for low intensity clapping.