Handsaws fall into two main categories, rip saws are designed for cutting along the grain of the wood, and crosscut saws are designed to cut across the grain of the wood [Wikipedia]
Mobile phone antennas are designed to project a signal in a donut shape, perpendicular to the long axis of the antenna. If you are holding your phone in a strange way, such as on its side or upside down, you will hinder the operation of the antenna. [wiki
