By Stephen Nellis and Kenrick Cai CUPERTINO, California, Sept 9 (Reuters) - Apple is widely expected to unveil a pricey folding iPhone at a launch event on Wednesday at its Cupertino, California, headquarters.

Apple is unveiling its latest generation of iPhones on Wednesday at an event headlined by new CEO John Ternus, who took over from Tim Cook on Sept. 1.

Glass — the brittle, breakable kind — is what scientists call an “amorphous solid.” It looks and acts like a solid, but glass atoms are actually frozen in a liquid-like state. Everyday glass shatters when bent because those atoms lie in a rigid matrix that, when thick, leads to extreme tension on the outer edge of the curved surface.

Apple is hosting its "Surprise and Shine" event on Sept. 9 at 10 a.m. PT. Apple has already confirmed that we'll see the newest generation of iPhones, but we're also expecting new AirPods, Apple Watches, and more. You can watch the event live on Apple's website, YouTube, and Apple TV.

Before today, Apple really didn’t have a device that sat between an iPhone and an iPad. The iPad mini is bigger than the iPhone Duo, with a screen size of a little over 8 inches. But the iPhone Duo’s functionality and bigger screen size make me wonder if it’s the perfect handheld device if you’re already considering a new iPhone and iPad.