Fiber lasers aren’t nearly as common as their diode and CO2 cousins, but if you’re lucky enough to have one in your garage or ...

So placing a pane of strengthened glass inside a metal frame makes the device extremely stiff and resistant to bending. There are trade-offs, but everyone adopted the glass sandwich for a reason.

The current generation of iPhones has used a well-worn design of a glass sandwich with a metal frame in the middle. For the Pro models of the iPhone 17, there could be some changes on the way.

Judging by previous reports, the frame will be made of metal – maybe aluminum this time – and there will be a glass window. For a better idea of what that should look like, here is an old ...