The sound of one hand clapping

the power of a hand. http://trialx.com/curebyte/2011/08/25/what-does-hand-look-like-are-you-also-searching-for-hand-clinical-trials/

A hand is the one of the most powerful feature a person has. A hand can do the most incredible things; a hand can touch, write, make signs and so forth. Whatever you want your hand to do it can do it, you just have to instruct it.

smacking with a hand.  http://www.telegraph.co.uk/health/healthnews/9053182/Smacking-never-right-say-doctors.html

The sound that comes out of one hand is more affective that a two hand sound. When clapping hands together there is less sound than when you using your one hand. One hand can make the most incredible and noticeable sound.  When one smacks another, he/ she will use one hand. You will notice this, immediately when that person finishes smacking that person everybody will look that happens because of the powerful sound the hand has produced.

Always know that when you use your one hand people will notice more that when you using