This technology is even simpler to explain. RF is a kind of electric current that travels back and forth in different directions. It can be applied in such a way that it travels through your entire body from one side and out the other or between a 10mm gap using a small hand piece, just along the surface of your skin.
Lesson Summary. A post and lintel is an architectural system where a horizontal piece is supported by two vertical posts, or columns. This is a basic form of architecture that has been used since ancient times, but the Egyptians used it for monumental architecture, or buildings that are massive in size and scale.
Postscript - A postscript (PS or P.S.) is writing added after the main body of a letter or other body of writing. The term comes from the Latin post scriptum, an expression meaning written after (which may be interpreted in the sense of that which comes after the writing).