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Current Issue
Issue #232 November 2009 - ANALOG TECHNIQUES
FEATURE ARTICLES
◊ Embedded Linux-Based Location System
◊ Energize a Circuit: An Innovative Switched-Mode Power Supply Design
◊ Precision Linear Encoder Display
◊ How to Repurpose a Development Platform
◊ Low-Distortion FSK Generation
Table of Contents | Article Code | Crossword | EQ | Forums | Digital Plus Log-in
COLUMNS
◊ LESSONS FROM THE TRENCHES Passing Parameters
◊ FROM THE BENCH Managed Devices and SNMP: A Simple Network Management Protocol
◊ SILICON UPDATE Power Pitcher: Wireless Power on a Microelectronic Scale
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Priority Interrupt
Keeping the Lights On
by Steve Ciarcia
Americans like to think that Thomas Edison came up with the light bulb in 1879 all by himself. But a patent settlement clearly gives equal credit to Joseph Swan, an English inventor. More importantly, while those early designs have evolved from glowing carbonized bamboo in a vacuum to radiant tungsten in argon gas, the concept and implementation of incandescent light bulbs have remained pretty much untouched for 130 years. Certainly no other electrified invention can claim so much history, so why dump it all now?... Read it now!
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