Electromagnetic Radiation
Imagine a century or so prior and almost all of these spectrums were unknown mysteries which were mostly approached theoretically. But by the early 20th century, specific uses and functions were discovered at different wavelengths. This chart offers a practical explanation of where each dwells. A great illustration of a wealth of scientific development
Condition is very good. On its original retractable roller and hanging bracket. Image size is approximately 48 x 33.75 (inches)
