Jeff Tyson

Sep 17, 2024 | science.howstuffworks.com | Ed Grabianowski |Jeff Tyson

While you are stepping through the metal detector, your carry-on items are going through the X-ray system. A conveyor belt carries each item past an X-ray machine. X-rays are like light in that they are electromagnetic waves, but they are more energetic, so they can penetrate many materials. The machine used in airports usually is based on a dual-energy X-ray system. This system has a single X-ray source sending out X-rays, typically in the range of 140 to 160 kilovolt peak (KVP).

Apr 10, 2024 | computer.howstuffworks.com | Marie Look |Jeff Tyson

By: Jeff Tyson & Marie Look | In the world of computers and electronics, there are a lot of terms that can be perplexing. One such term that often crops up is "ROM." But what is ROM, and how does it function within the framework of computer systems? Let's unpack this data storage concept. What Is ROM? ROM is an acronym for Read-Only Memory. It refers to a type of computer memory that stores data permanently. A ROM memory chip contains hard-wired instructions that you can't change. It's also...