Here are the reasons why one might (at any age) go to see an ob/gyn or midwife: 1  To get birth control. 2  To have STI testing -- if you're experiencing symptoms, or you've had unprotected sex, you should probably have some STI tests done.
A: Gamma rays are used in many different ways; one of the most common uses is inspecting castings and welds for defects that are not visible to the naked eye. Another common use of gamma rays is in the treatment of certain types of cancer.
Gamma radiation and X-rays are able to easily penetrate most materials, and machines that produce this type of radiation are a direct hazard to humans. However, X-rays are used for medical purposes. Gamma radiation and X-rays are similar, differing only in the amount of energy produced.