Under normal use, the handheld system screen does not crack. If excessive pressure is applied or an impact occurs to the hand held screen the LCD screen and/or the system case may crack or be damaged. The Limited Warranty for the handheld system does not cover physical damage, including damage to the LCD screen.
Making the world better, one answer at a time. Katakana was developed by Buddhist monks in the Heian period (794-1185). They were derived from shorthand forms of certain kanji that shared the same pronunciation.
The Gekisai Kata were formulated by Chojun Miyagi Sensei in 1940 as a form of physical exercise for high school boys and to help popularize Goju-Ryu among the public of Okinawa. In 1948, after WWII, Miyagi Sensei began to teach the Gekisai Kata in depth as a regular part of Goju-Ryu in his own dojo.