# Modern Radio Practice in Using Graphs and ChartsMay 1934 Radio News and the Short-Wave Article

The value of memorizing multiplication tables, the proper spelling of words, the location of countries on a map, et cetera, is being questioned by many people these days (mostly low-achieving dummkopfs) based on an easy access to data on the Internet and other media. All such people need to do is get fairly close to spelling topics of interest correctly and other people who do not subscribe to the aforementioned philosophy have seen to it that the laziness and ignorance of those who do subscribe are duly accommodated. I'm referring to basic life skills of course, not nuclear science or phenology. The obvious advantage gained in memorization is developing an intuitive feel for what the entire realm of subject entails. Strong visual clues during the learning process augment retention of data. For instance, electronic calculators in their various forms are great for arriving at precise numerical answers with given input conditions. Enter an exact set of numbers and get an exact result on the display (right or wrong, depending on the input data and the correctness of the algorithm). Whether or not the answer makes sense and should be believed depends on the user's familiarity with expected results. That is where being exposed to charts, tables, nomographs, and graphs of functions and related items is of inestimable value both to the learning process and to the application process later in real-world situations. On many occasions I have posted articles from publications that predate the handheld calculator and personal computer era which include those kinds of learning aids for readers. Here is another. As Albert Einstein famously said*, "Any fool can know. The point is to understand."

Modern Radio Practice in Using Graphs and Charts

Part Nine   (see Part 4)

Calculations in radio design work usually can be reduced to formulas represented as charts which permit the solution of mathematical problems without mental effort. This series of articles presents a number of useful charts and explains how others can be made

John M. Borst

Electronics Nomographs and Circuits

Figure 5 - A Millimeter as an Ohmmeter

* Albert Einstein also supposedly said, "I never commit to memory anything that can easily be looked up in a book;" however, its veracity is in question.

Posted  February 21, 2014