多级标题:
I. Introduction
– Explanation of the electromagnetic spectrum and its importance
– Statement of the purpose of the article
II. The Electromagnetic Spectrum
– Definition and components of the electromagnetic spectrum
– Explanation of the different types of waves within the spectrum
III. Wavelengths in the Electromagnetic Spectrum
– Explanation of wavelength and its significance
– Overview of the range of wavelengths within the electromagnetic spectrum
IV. Longest Wavelengths in the Electromagnetic Spectrum
– Introduction to the part of the spectrum with the longest wavelengths
– Explanation of the specific type of wave with the longest wavelengths
V. Radio Waves
– Detailed explanation of radio waves
– Characteristics and properties of radio waves
– Case examples of the uses and applications of radio waves
VI. Conclusion
– Recap of the article’s main points
– Emphasis on the significance of understanding the longest wavelengths in the electromagnetic spectrum
– Final thoughts on the importance of studying and researching this topic
Note: This is a sample outline for organizing an article on the topic of the longest wavelengths in the electromagnetic spectrum. The actual content will depend on the research and information available.
