Making homemade transistors (or at least trying)

Source: Hacker News

On 1987, I learned about how computer and digital gates works. On 1988 I made a full schematic of a calculator with transistors. On 1989 I decided to make a transistor. Today, 20 years later, where I am? Unfortunately, I am too far away from the ...
Full article at: Hacker News  More like this  1 day ago, 9:45pm CDT

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How Does An Accelerometer Work In A Smartphone? Bill Hammack, "The Engineer Guy," Explains [FULL TEXT]

Source: International Business Times

We barely notice them, but they're one of the most important features buried in the everyday smartphone experience. Accelerometers are devices that can measure acceleration (the rate of change in velocity), but in ...
Full article at: International Business Times  More like this  4 days ago, 4:01pm CDT