Palming

[mcdanrd]

I had a friendly disagreement with a partner between games on Saturday. It had to do with palming/travel and high dribble. After the game, I reread Point of Emphasis 4 on page 66 of the NFHS Rules Book. I was under the impression that a high dribble was just that, a dribble. The PoE makes it sound like a player can palm/travel the ball with his/her palm facing the floor. I understand that there is sometimes the appearance of a ball coming to rest with the palm down, but I guess my question is, Given the laws of physics, is that possible? and, how do you determine whether it's simply a high dribble or a travel?