Apple's new range of MacBooks have something particularly new inside them: the Force Touch trackpad. No longer hinged like previous Apple laptops, the new touchpad houses a "Haptic Engine", outputting tactile feedback that will let you "feel" what's happening on-screen. iFixit's taken a closer look at how Apple did it, and while the trackpad is no longer hinged, there are now four spring mounts underneath. That haptic engine? A load of wires coiled around a magnetic core, which makes that all important vibrational feedback.