H-2-OPUS WATER, MUSIC, LIGHTS, AND MICROCONTROLLERS 
What kind of home project has 82 legs, horns, and will never have all of the "bugs" worked out of it?    
 

The answer is "H-2-Opus," a BASIC Stamp driven musical water fountain. 

1920s RADIO APPLAUSE CARDS

Back in the 1920s, the penny postcard quickly became the preferred medium by broadcast radio stations for listener reports. 

Early commercial radio stations valued listener reports, as they were the major means by which broadcasters could tell if and where their programming was being received. The reports helped station marketers develop demographics for the station in general, and for specific programming. Since telephone calls were a bit pricey at the time, the penny postcard — or applause cards as they became known — quickly became the preferred medium for listener reports.

NEWTON'S APPLE 

A fun spin on the classic falling body experiment to measure the acceleration of gravity.

When I was in junior college, I did an experiment in a physics class that I have never forgotten. It was the classic falling body experiment to measure the acceleration of gravity; 9.81 meters/sec2. I loved carefully adjusting the apparatus and meticulously taking the data, trying to get a result that was as close as possible to the established value. Frankly, I don’t recall how close I got but it was the thrill of scientific inquiry that grabbed me. Now, in this age of computer technology, I thought it might be challenging and fun to see how good I could do in my garage with a fairly simple DIY apparatus.

A LOOK AT SIGNAL REPORTING 

An introduction to signal reporting techniques. 

It seems every radio service has its own signal reporting method. Why are they different? Is one better than another? How do they compare, and what do they mean? Let’s consider how (and what) information is conveyed, and how these different schemes stack up.

You are receiving this email because you have been a subscriber to Nuts & Volts Magazine, or have requested to receive our email newsletters. You may unsubscribe, change your email address or content preferences at any time through the links provided below.