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.
A gamma ray is electromagnetic radiation (similar to visible light, but at a much higher energy in the electromagnetic spectrum) given off by the nucleus of an atom as a means of releasing excess energy, and is oftentimes released when an atom undergoes decay by emitting an alpha or a beta particle.