If the cross section of metal in the projection is fractured, the heat build up will form more rapidly in the stretched material then at the workpiece interface area. This will result in the projection collapsing before fusion takes place.
  If I remember right... the very first video game was: PONG. It came out in the early to mid-70's, somewhere between 1972-1974. After that came ATARI. I know I'm right ab â¦ out the name (PONG)... the year; not so much.
Beginning in 1971, video arcade games began to be offered to the public for play. The first home video game console, the Magnavox Odyssey, was released in 1972. The golden age of arcade video games began in 1978 and continued through to the mid-1980s. A second generation of video game consoles, released between 1977 and 1983, saw increased popularity as a result of this, though this eventually came to an abrupt end with the North American video game crash of 1983.