One is shortwave radiation or short wavelength radiation and the other is longwave radiation/long wavelength radiation. The diagram below shows the range of shortwave radiations. There is no proper definition of shortwave radiations as there is no standard cut off for near infrared radiations range.
Cottage cheese is a fresh cheese curd product with a mild flavor. It is drained, but not pressed, so some whey remains and the individual curds remain loose.
Cottage cheese gets some of its sodium from the natural sodium of milk. A cup of milk contains 100 milligrams of sodium, and it takes 1 gallon of milk, or 16 cups, to make 1.3 pounds of cottage cheese. Salt is added as one of the last steps in the process. Cottage cheese is still a good source of protein, so look for lower-sodium brands if you want to keep eating it.