The word "hacker" is often defined outside or in the media as a computer expert who specializes in hacking into other people's systems. But this type of person is a low-level cracker in hacker's eyes. If a hacker is a bomb maker, then a hacker is a terrorist.
Shoot at a moving target at a distance of 50 meters with a small calibre rifle. The target is the target of the moving target, so it is called the target of the pig. The early moving target was installed on the pulley, and the inertial movement after the manual drive, now mostly for electronic manipulation. The men's project was listed as an Olympic sport since 1900. In later moving target shooting, the target was gradually changed from the original pig target to the 10-meter air rifle, which was cancelled at the 2008 Beijing Olympics.