Apple just revealed details about it’s new manufacturing process that involves a block of aluminum and carving away the unnecessary material. Instead of taking aluminum sheeting and adding layers to it, the new process starts with a 2.5 pound aluminum ”brick” and eventually eliminates the need for an internal frame. One would assume that this process not only reduces weight but also produces a rigid frame. This process was developed for the MacBook Air and now is used for some of Apple’s new notebooks.