Wavelength

At first I was really confused about wavelength and how to calculate it and add the equation for energy. I was honestly a mess. But I did a lot of the practice problems and I learned it quickly. Now that I look back at it, I just laugh at how silly I was for not getting it at first because it's pretty basic for the most part. In a way I think it's pretty cool that we can measure wavelengths or frequency or energy of a wave that we can't even see!! We can do all these things with chemistry! I think that's pretty cool! I can go up to someone who's wearing a red shirt and say hey ur shirt is giving off 7.0 x 10-7 meters in wavelength and is  4.3 x 10 E14 Hz. That's pretty freaking awesome!