Latest from Forrest M. Mims III


How to Use LEDs to Detect Light

How to Use LEDs to Detect Light

01/08/2014

Since an electromagnetic telephone receiver can double as a microphone, can a semiconductor light emitting diode (LED) double as a...

How to Make and Use Retroreflectors

How to Make and Use Retroreflectors

10/07/2013

They're everywhere — in car taillights, traffic signs, and reflective tape on clothing. Unlike an ordinary mirror, a retroreflector bounces...

Becoming an Amateur Scientist

10/26/2010

Today’s amateur scientists have access to sophisticated components, instruments, computers, and software that could not even be imagined back in...

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