Comment by sytelus

What is cool about this is how much of technology required for all little tiny parts of modern devices. Who knew a camera lens is made up of Sapphire? I wonder how many elements from periodic tables would be checked off when making an iPhone. Just thinking about this, there were probably 100s of innovations just to mine and purify and machine sapphire in past 100s of years so that in 2000s we can finally produce acceptable quality tiny camera lens. Same thing goes for Gorilla glass, motion sensors and so on. I would probably bet that if we needed to make a document that describes every technology required to make an iPhone starting from how to make a fire so that a caveman can follow it by the line and produce an iPhone, it would probably a 100 million pages.