The Phone in Your Hand: A Teardown of the Most Intricate Machine You Own
Your phone is the most intricate machine you've ever held. Let's take it apart.
From the one-molecule-thick non-stick coating on the screen to the MEMS sensors that track your every move, this teardown reveals the astonishing engineering inside a modern smartphone. It explains how chemically hardened glass resists cracks, how capacitive touch works, and how tiny gyroscopes and accelerometers give your phone a sense of orientation. Along the way, it traces the history of key components, from the first camera phone to the iPhone's introduction of multi-touch.
The difference is a non-stick coating one molecule thick, and every time you touch the screen a little of it wears away.
- matherial
What an odd website. It explains everything in incredibly childish terms ("The display you’re reading this on is an absurd grid of exactly [wrong number] tiny, multicoloured light bulbs, known as pixels."), has lots of needless word-salad LLMisms ("Electricity made light effortless. The torch in your phone made darkness optional."), and all in all, feels like a wasted concept because it doesn't really say anything that isn't patently obvious: a phone has a screen and a camera and a CPU... okay? Not exactly mind-blowing.
It doesn't really even do anything to support its thesis that it's the "most intricate machine you've ever held". I don't know, I'm holding a Thinkpad laptop right now and I'm pretty sure it's a superset of what's inside a phone.
- nayuki
> Petrol stores 50 times more energy by weight, but it needs to be exploded. A doughnut stores around 15 times, but it needs to be digested.
You left out a very important fact: Combustion requires external oxygen, which is not counted in the denominator when energy-by-mass is typically considered.
- CapitalistCartr
The most intricate machine I've ever held was an inertial guidance system, back when they were hugely complex. My phone isn't even close.